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WO2011099672A1 - Multiband signal transceiver - Google Patents

Multiband signal transceiver Download PDF

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Publication number
WO2011099672A1
WO2011099672A1 PCT/KR2010/002289 KR2010002289W WO2011099672A1 WO 2011099672 A1 WO2011099672 A1 WO 2011099672A1 KR 2010002289 W KR2010002289 W KR 2010002289W WO 2011099672 A1 WO2011099672 A1 WO 2011099672A1
Authority
WO
WIPO (PCT)
Prior art keywords
feed horn
band
signal
low noise
noise converter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2010/002289
Other languages
French (fr)
Korean (ko)
Inventor
차승현
손민선
유경준
한아름
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Intellian Technologies Inc
Original Assignee
Intellian Technologies Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Intellian Technologies Inc filed Critical Intellian Technologies Inc
Publication of WO2011099672A1 publication Critical patent/WO2011099672A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/02—Waveguide horns
    • H01Q13/0266—Waveguide horns provided with a flange or a choke
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
    • H01Q19/13—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave the primary radiating source being a single radiating element, e.g. a dipole, a slot, a waveguide termination
    • H01Q19/134—Rear-feeds; Splash plate feeds
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole

Definitions

  • the present invention relates to a multi-band signal transmission and reception apparatus, and more particularly, to a multi-band signal transmission and reception apparatus capable of transmitting and receiving signals of a multi-band in one device, and can compensate for skew due to linearly polarized wave reception.
  • Reflector antennas are commonly used in satellite communications, high-capacity wireless communications, and the like.
  • the reflector antenna focuses the transmitted and received signals on at least one focal point using the principle of a reflective telescope.
  • a horn antenna or a feed horn may be installed at a focal position of the reflector antenna.
  • a parabolic antenna may be used as the reflector antenna.
  • the feed horn collects the reflected signal and delivers the reflected signal to a low noise block down converter (LNB).
  • LNB low noise block down converter
  • the low noise converter converts a signal received from a feed horn into a signal of an intermediate frequency band and transmits the signal to an external RF module.
  • the signal transmitted from the feed horn can be radiated into the air through the reflector antenna.
  • the low noise converter is a kind of electronic amplifier as a device corresponding to the first step of receiving a signal. Some additional noise is generated in the low noise converter, and the noise generated by the low noise converter itself can be amplified and transferred to the next stage. To maintain an optimal system, this noise must be minimized. Low noise converters are designed with noise floors to stabilize the entire satellite transceiver system.
  • a plurality of transmitting and receiving devices are separately provided for each band of the signals.
  • satellite broadcasting may be serviced through Ku band and Ka band, respectively, but until now, a Ku band signal transceiver for transmitting and receiving Ku band signals and a Ka band signal transceiver for transmitting and receiving Ka band signals are provided.
  • Each was installed separately. Therefore, not only the cost for transmitting and receiving signals of the multi band can be greatly increased, but also the installation space for transmitting and receiving signals of the multi band can be greatly increased.
  • a feed band for Ku band and a low noise converter must be provided in order to transmit and receive a signal with a satellite using Ku band frequency
  • a feed band for Ka band and a low noise converter can be used for transmitting and receiving signals with a satellite using Ka band frequency.
  • the user directly replaces the feed horn for the Ku band with the feed horn for the Ka band, There was the inconvenience of replacing the low noise converter with a low noise converter for the Ka band.
  • the skew angle generated between the satellite signal polarization and the reception polarization of the antenna when the signal transmitted from the satellite is a satellite signal having an arbitrary linear polarization is used. It could not be compensated automatically.
  • the antenna itself In order to transmit and receive signals with satellites using linear polarization according to the position of moving objects such as ships, the antenna itself must be rotated by the skew angle to compensate for the skew angle. This method increases the size of the antenna as the antenna itself is rotated. The manufacturing cost is high and the power loss was a big problem.
  • the antenna in order to transmit and receive a satellite signal having an arbitrary linear polarization, the antenna has to be rotated to compensate for skew, and the skew angle is not compensated. If not, there was a problem that satellite signal loss occurs.
  • One embodiment of the present invention provides a multi-band signal transmission and reception apparatus capable of transmitting and receiving signals of a multi-band in one device.
  • an embodiment of the present invention provides a multi-band signal transmission and reception apparatus that can easily implement a function that allows a device to transmit and receive multi-band signals in a simple structure.
  • an embodiment of the present invention provides a multi-band signal transmission and reception apparatus that can easily select and process a processor capable of processing the signal according to the type of band and polarization of the signal received in the feed horn.
  • an embodiment of the present invention provides a multi-band signal transmission and reception apparatus that can automatically compensate for the skew generated between the satellite signal polarization and the reception polarization of the feed horn when the signal transmitted from the satellite is a linear polarization.
  • a feed horn for receiving a multi-band signal
  • a low noise converter having a plurality of processing units for processing the signal received by the feed horn for each band of the signal
  • a skew compensation mechanism provided in the low noise converter or the feed horn and rotating the low noise converter or the feed horn to compensate for a skew angle when the signal received in the feed horn is linearly polarized.
  • a feed mechanism provided in the low noise converter or the feed horn and transferring at least one of the feed horn or the low noise converter so that a signal received in the feed horn is transmitted to a processing unit for processing a band of the signal
  • Processing units are disposed in the low noise converter so as to be adjacent to each other in at least one of a linear shape, a curved shape, a circular shape, an elliptic shape, or a polygonal shape, and at least one of the low noise converter or the feed horn is provided by the transfer mechanism. It may be transported along the same path as the arrangement shape of the processing units. This allows one low noise converter to transmit or receive signals of multiple bands.
  • a polarizer may be formed inside the waveguides to convert the circular polarization into a linear polarization when the signal received from the feed horn is a circular polarization.
  • a signal of circular polarization can also be processed.
  • the skew compensation mechanism may rotate the feed horn or the low noise converter by a predetermined angle to match the polarizer with the polarization plane of the linear polarization.
  • the skew compensation mechanism may be operated so that the polarization plane of the polarizer and the linear polarization coincide.
  • the skew compensation mechanism is provided at an upper end of the waveguide and the adapter is installed in the feed horn, a bearing rotatably provided on the outer peripheral surface of the adapter, a pulley rotatably provided on the outer peripheral surface of the bearing, provided on one side of the feed horn And a rotational driving unit for rotating the pulley and a rotational force transmitting member for connecting the rotational driving unit and the pulley to transfer the rotational force of the rotational driving unit to the pulley.
  • the skew compensation mechanism may further include a rotation amount detection sensor configured to detect a rotation amount of the feed horn or the low noise converter.
  • the transfer mechanism is connected to the feed horn and the low noise converter and guides and guides the movement of at least one of the low noise converter or the feed horn along a path for selectively matching the feed horn to the waveguides. It may include a driving unit for moving at least one of the low noise converter or the feed horn along the guide portion.
  • One side of the feed horn may be provided on the side facing the transfer mechanism on the basis of the center of rotation of the skew compensation mechanism to form a counter weight for balancing the load applied to the skew compensation mechanism.
  • the direction in which the transfer mechanism moves the low noise converter may be formed to intersect the central axis of rotation of the low noise converter or the feed horn by the skew compensation mechanism.
  • the drive unit of the transfer mechanism and the drive unit of the skew compensation mechanism may be formed on the other side with respect to the center of the feed horn.
  • the feed horn is any one of a signal in a Ku band band, a signal in a Ka band band, a circular polarization signal in a Ku band band, a linear polarization signal in a Ku band band, a circular polarization signal in a Ka band band, or a linear polarization signal in a Ka band band. It can receive the signal of.
  • the multi-band signal transmission and reception apparatus can easily transmit and receive a multi-band signal in one device.
  • the multi-band signal transmission and reception apparatus can be formed in a simple and compact structure in one device. Therefore, the multi-band signal transmission and reception apparatus can be easily manufactured and the installation space can be easily secured.
  • the multi-band signal transmission and reception apparatus can transmit and receive the signal of the multi-band in one feed horn, thereby reducing the cost of components by reducing the number of use of the feed horn.
  • the signal transfer unit of the low noise converter realizes gain compensation for signals received in a single feed horn, it is possible to more accurately transfer the multiband signals received in the feed horn to the processing units.
  • the multi-band signal transmission and reception apparatus simply changes the processing unit matched with the feed horn according to the type of the band and polarization of the signal received in the feed horn, thereby easily transmitting and receiving the signal of the multi-band signal. can do.
  • vehicles such as vehicles, aircraft, and ships, can handle all signals in each region even if the signal band passes through different regions.
  • the multi-band signal transmission and reception apparatus automatically prevents skew generated during linear polarization, thereby preventing signal loss, and skewing by rotating a low noise converter using a skew compensation mechanism.
  • the power required for compensation can be reduced.
  • the multi-band signal transmission and reception apparatus can implement the transmission and reception and the skew compensation of the multi-band signal with one low noise converter, thereby improving maintenance convenience.
  • FIG. 1 is a perspective view showing a multi-band signal transmission and reception apparatus according to an embodiment of the present invention
  • FIG. 2 is a side view showing the multi-band signal transmission and reception apparatus shown in FIG.
  • FIG. 3 is a perspective view showing the main part of the multi-band signal transmission and reception apparatus shown in FIG. 1;
  • Figure 4 is an exploded perspective view showing the main portion shown in FIG.
  • FIG. 5 is a perspective view showing an exploded state of the skew compensation mechanism of the main part shown in FIG.
  • FIG. 6 is a plan view showing an example of operation of the main portion shown in FIG.
  • FIG. 7 is a front view showing the main portion shown in FIG.
  • FIG. 8 is a cross-sectional view taken along the cutting line "A-A" in FIG. 6;
  • FIG. 9 is a rear perspective view showing the main portion shown in FIG.
  • FIG. 10 is a plan view showing another example of operation of the main portion shown in FIG.
  • FIG. 11 is a front view showing the main portion shown in FIG.
  • FIG. 12 is a cross-sectional view taken along cut line “B-B” of FIG. 10;
  • FIG. 13 is a rear perspective view showing the main portion shown in FIG.
  • FIG. 14 is a plan view showing another example of operation of the main portion shown in FIG.
  • FIG. 1 is a perspective view showing a multi-band signal transmission and reception apparatus according to an embodiment of the present invention
  • Figure 2 is a side view showing a multi-band signal transmission and reception apparatus shown in Figure 1
  • FIG. 5 is an exploded perspective view showing the skew compensation mechanism of the main part shown in FIG. 3
  • FIG. 6 is shown in FIG. 7 is a front view showing the main portion shown in FIG. 6,
  • FIG. 8 is a sectional view along the cutting line "AA" of FIG. 6,
  • FIG. 9 is a main portion shown in FIG. Back perspective view
  • FIG. 10 is a plan view showing another operation example of the main part shown in FIG. 3, FIG.
  • FIG. 11 is a front view showing the main part shown in FIG. 10,
  • FIG. 12 is a sectional view taken along the cutting line "BB" of FIG. 13 is a rear perspective view showing the main portion shown in FIG. 10,
  • FIG. 3 is a plan view showing another example of the operation of the main part shown in FIG.
  • the multi-band signal transmission and reception apparatus 100 includes a feed horn 110, a low noise converter 120, a transfer mechanism 130, and a skew compensation mechanism 160. It may include.
  • the multi-band signal transceiving apparatus 100 is mainly installed in a moving object such as a ship and receives a signal of a satellite or transmits a signal to a satellite, and may be referred to as a satellite tracking antenna.
  • the multi-band signal transceiving apparatus 100 may transmit and receive signals of a plurality of frequency bands from a plurality of satellites, respectively, as well as transmit and receive signals of circular polarization and linear polarization, respectively. That is, the number of waveguides and processing units to be described later may be determined in the low noise converter 120 according to types of bands and polarizations of signals transmitted and received by a plurality of satellites.
  • the signal received at the feed horn 110 is described as an example of a linearly polarized Ku band signal and a circularly polarized Ka band signal.
  • the case of the linearly polarized Ku band signal and the circularly polarized Ka band are just examples, and various combinations can be made therefor. That is, in detail, the Ku band signal of linear polarization and the Ka band signal of linear polarization, the Ku band signal of circular polarization and the Ka band signal of circular polarization, the Ku band signal of circular polarization and the Ka band signal of linear polarization In one embodiment of the present invention, a description thereof will be omitted for convenience.
  • the Ku band signal and the Ka band signal as described above are signals of a frequency band mainly used for satellite broadcasting. That is, the Ku band signal is a signal in the frequency band from 12 GHz to 18 GHz, and the Ka band signal is a signal in the frequency band from 18 GHz to 30 GHz.
  • the feed horn 110 is a waveguide type antenna, and may perform a function of receiving a multi-band signal from a satellite or transmitting a signal to the satellite.
  • the feed horn 110 may be formed in different diameters or shapes according to the frequency band of the received signal. Specifically, the diameter of the feed horn 110 is formed smaller as the frequency band of the received signal is larger.
  • the diameter of the feed horn for the Ku band signal may be larger than the diameter of the feed horn for the Ka band signal. Since the feed horn 110 of the present embodiment transmits and receives both the Ku band signal and the Ka band signal, the feed horn 110 may be formed with a smaller diameter than the feed horn for the Ku band signal and may be formed with a larger diameter than the feed horn for the Ka band signal. For example, if the diameter of the feed horn for the Ku band signal is 18 mm and the diameter of the feed horn for the Ka band signal is 11 mm, the feed horn of the embodiment of the present invention may be formed to a diameter of 15 mm.
  • the feed horn 110 may be disposed above the low noise converter 120 with the lower portion fixed to the frame 112.
  • the frame 112 may be mounted to the reflector antenna 142 described later.
  • feed horn 110 in one embodiment of the present invention is described as a singular feed horn 110 is used, but is not limited thereto.
  • a few more may be used instead of only one feed horn 110.
  • the plurality of feed horns 110 used in this way may be formed with a different diameter depending on the signal band.
  • the low noise converter 120 is an apparatus for amplifying and frequency converting a signal received at a feed horn 110 into a signal of an intermediate frequency band.
  • the low noise converter 120 may be formed to have a small noise figure.
  • the low noise block down converter (LNB) as described above includes a processor module 122 in which the processors 122a and 122b are formed, a module housing 124 and a module formed to surround the outside of the processor module 122. It may include a signal transmission unit 126 is formed in the housing 124, the waveguides (126a) (126b) through which the signal received by the feed horn 110 passes.
  • the processor module 122 may be formed of one substrate.
  • processors 122a and 122b for processing signals of various frequency bands may be formed in electronic circuits at different positions. These processors 122a and 122b may be included in the low noise converter 120 for processing a signal received by the feed horn 110.
  • processing units 122a and 122b may be disposed adjacent to each other in the processing unit module 122 in at least one of a linear shape, a curved shape, a circular shape, an elliptic shape, or a polygonal shape.
  • two processing units 122a and 122b are disposed to be spaced apart in a straight line as an example.
  • the module housing 124 is a box-shaped member that accommodates the processor module 122 therein and protects the processor module 122 from external impact and external environment.
  • the module housing 124 may be formed by a casting method such as die casting, and the module housing 124 and the signal transmitting unit 126 may be integrally cast.
  • the signal transmission unit 126 receives a signal received by the feed horn 110 and transmits the received signal to any one of the processing units 122a and 122b.
  • the signal transmitter 126 may be formed on an upper portion of the module housing 124 facing the feed horn 110.
  • the signal transmission unit 126 may be formed in a shape that is the same as or similar to the arrangement of the processing units 122a and 122b.
  • the signal is transmitted to the upper portion of the module housing 124 in a shape corresponding to the arrangement of the processing units 122a and 122b, for example, a linear shape, a curved shape, a circular shape, an ellipse shape, or a polygonal shape.
  • Waveguides of the portion 126 may be formed.
  • the waveguides of the signal transmission unit 126 will be described as an example in a case where the waveguides are formed in a linear shape.
  • the signal transmission unit 126 may be formed to protrude upward from the upper portion of the module housing 124 to be movably connected to the lower portion of the feed horn 110.
  • the waveguides 126a and 126b may be formed through the signal transmission unit 126 as described above.
  • the waveguides 126a and 126b may be formed at positions facing the processing units 122a and 122b, respectively.
  • an insertion groove (not shown) may be formed on the upper surface of the signal transmission unit 126 so that the lower portion of the feed horn 110 may be inserted to be movable in the left and right directions. Therefore, the feed horn 110 may be located in communication with any one of the waveguides 126a and 126b in the process of moving along the insertion groove.
  • the waveguides 126a and 126b may be formed to have different cross-sectional areas according to frequency bands of signals transmitted to the processing units 122a and 122b.
  • the waveguides 126a and 126b are formed to have a smaller cross-sectional area as the frequency band of the signal passing through is larger.
  • the cross-sectional area of the waveguide 126b through which the Ku band signal passes may be greater than the cross-sectional area of the waveguide 126a through which the Ka band signal passes.
  • a stepped portion (not shown) may be formed on the inner surface of the waveguide 126a as necessary.
  • the stepped portion may be formed on the tops of the waveguides 126a and 126b to compensate for the rapid cross-sectional area change of the feed horn 110 and the waveguides 126a and 126b. Accordingly, the stepped portion may be formed larger than the cross-sectional areas of the waveguides 126a and 126b and smaller than the cross-sectional areas of the feed horn 110.
  • the stepped portion may perform a function of a transition section for buffering a difference in cross-sectional area between the feed horn 110 and the waveguides 126a and 126b. That is, when the stepped portion is formed in the upper part of the waveguides 126a and 126b through which the signal of the satellite is introduced from the feed horn 110, the signal received by the feed horn 110 is transmitted to the waveguides 126a and 126b. The loss of signal generated can be significantly reduced.
  • polarizers 127a and 127b may be formed in the waveguides 126a and 126b as necessary.
  • the polarizers 127a and 127b are devices for processing a satellite signal having polarization characteristics, and may be formed in different shapes according to polarization characteristics of the signal passing through the waveguides 126a and 126b. That is, although FIG. 7 illustrates the cylindrical polarizer 127a and the stepped plate-shaped polarizer 127b, the shape and implementation method of the polarizer are not limited thereto, and various shapes and implementation methods are determined by the design conditions. Can be applied accordingly.
  • the processing units 122a and 122b must receive a signal in the form of linear polarization. Therefore, if the signal received by the waveguides 126a and 126b is in the form of circular polarization, the signal in the form of circular polarization is converted into the form of linear polarization through the polarizers 127a and 127b. In addition, when the signals received by the waveguides 126a and 126b are in the form of linear polarization, the linearly polarized signals may be directly transmitted to the processing units 122a and 122b without any separate polarizers 127a and 127b. .
  • the low noise converter 120 may include a plurality of connectors 121 and 123. One side of the low noise converter 120 may be provided with a cable clamp 116 for fixing a cable connected to the connectors (121, 123).
  • the transfer mechanism 130 is a device for linearly transferring at least one of the feed horn 110 or the low noise converter 120 according to the band of the signal received by the feed horn 110. .
  • the feed horn 110 is fixed and the low noise converter 120 is described as being transferred by the transfer mechanism 130. That is, the transfer mechanism 130 may transfer the low noise converter 120 along a straight path to match the feed horn 110 with any one of the waveguides 126a and 126b.
  • the reception sensitivity of the feed horn 110 may be affected by the change of the position of the feed horn 110. have. Therefore, it may be more preferable to fix the feed horn 110 and to transfer the low noise converter 120 as in one embodiment of the present invention.
  • the signal of the feed horn 110 is processed to a processing unit capable of processing a signal received by the feed horn 110 among the processing units 122a and 122b. Can be passed. Therefore, since the processing units 122a and 122b of the low noise converter 120 can selectively process the signals of the multi-bands received by the feed horn 110, it is possible to simultaneously transmit and receive the signals of the multi-bands in one device. have.
  • the feed mechanism 130 is a guide portion 132 connected to the feed horn 110 and the low noise converter 120, and a linear portion provided in the guide portion 132 and moving the low noise converter 120 along the guide portion 132.
  • the driving unit 134 may be included.
  • the guide part 132 may be formed to have a structure for guiding the movement of the low noise converter 120 along a straight path for selectively matching the waveguides 126a and 126b and the lower portion of the feed horn 110. That is, when the low noise converter 120 is moved along the guide part 132, the lower part of the feed horn 110 may be moved along the upper part of the signal transmission part 126. In this process, the waveguides 126a and 126b may be selectively matched to the lower portion of the feed horn 110.
  • the guide part 132 may be formed in a shape that guides the low noise converter 120 in a left and right direction along a transfer path corresponding to the arrangement shape of the processing units 122a and 122b, that is, the linear shape.
  • the guide part 132 may be formed in a curved, circular, elliptical, or polygonal transfer path corresponding to the arrangement shape of the processing units 122a and 122b.
  • the guide part 132 as described above may include the first guide protrusion 132a formed under the frame part 112, the guide rod 132c fixed to the first guide protrusion 132a, and the module housing 124. It may include a second guide protrusion (132b) formed on the top and slidingly moved along the guide rod (132c). Accordingly, the low noise converter 120 may be linearly reciprocated in the left and right directions along the guide rod 132c.
  • the guide part 132 may be provided in plurality in the frame part 112 and the module housing 124. Hereinafter, it will be described that the guide portion 132 is disposed in front and rear of the frame 112 and the module housing 124, respectively.
  • a buffer member (not shown) may be disposed at a portion of the first guide protrusion 132a and the second guide protrusion 132b that face each other.
  • the shock absorbing member may cushion the shock due to the collision between the first guide protrusion 132a and the second guide protrusion 132b during the operation of the transfer mechanism 130.
  • the linear drive unit 134 includes a motor bracket 134a disposed under the frame 112, a drive motor 134b disposed on the motor bracket 134a, and a drive motor 134b movably disposed, and the module housing 124. It may include a screw shaft (134c), one end of which is fixed horizontally on the top.
  • the screw shaft 134c is a rod-shaped member having a male screw formed on an outer circumference thereof, and a ball screw or a lead screw may be used. It is also possible to use a linear motor that performs linear motion.
  • the screw shaft 134c may be arranged in a horizontal cantilever shape in a horizontal direction on an axis fixing part (not shown) formed at the side of the signal transmission part 126.
  • the drive motor 134b may be screwed to the male screw of the screw shaft 134c to linearly move in the axial direction of the screw shaft 134c.
  • An elastic member (not shown) for elastically supporting the driving motor 134b may be disposed in the motor bracket 134a and the driving motor 134b.
  • the driving motor 134b is elastically supported by the elastic member as described above, when the driving motor 134b and the screw shaft 134c are screwed together, the driving motor 134b is caused by the backlash of the male screw and the female screw. The fine shaking can be prevented to improve the feeding accuracy.
  • Couplings 134d and 134e are mounted at both ends of the screw shaft 134c, and either end of the coupling 134e is fixed to the flange 134f attached to the signal transmission unit 126 and fixed to the screw shaft 134c. It can support both ends of.
  • any one of the feed horn 110 or the low noise converter 120 may be provided with a positioning protrusion 138, and the other of the feed horn 110 or the low noise converter 120 may have a positioning protrusion 138.
  • Position sensor 139 for detecting the may be provided.
  • the position sensor 139 is disposed in the frame 112 to which the feed horn 110 is fixed, and the positioning protrusion 138 in the signal transmission unit 126 of the low noise converter 120. It will be described as protruding.
  • the position sensor 139 may use various kinds of sensors capable of detecting the positioning protrusion 138, but it will be described as an optical sensor in one embodiment of the present invention. Accordingly, the position where the positioning projection 138 is disposed between the light receiving portion 139a and the light emitting portion 139b of the position sensor 139 can be set as an initial position for controlling the operation of the transfer mechanism 130. That is, the transfer mechanism 130 may be operated after being placed in the initial position of operation.
  • the light receiving unit 139a and the light emitting unit 139b are mounted on the lower surface of the frame 112 and fixed to the sensor fixing member 139c.
  • the positioning projection 138 passing between the light receiving portion 139a and the light emitting portion 139b is fixed to the second guide protrusion 132b to move along the guide rod 132c.
  • the rotation drive unit 164 is located on the lower surface of the frame 112, it may be mounted to the frame 112 by a motor bracket 165 is fixed to the frame 112.
  • the lower surface of the frame 112 may be provided with a cable clamp 116 for fixing the cables connected to the connectors (121, 123).
  • the skew compensation mechanism 160 to compensate for the skew angle that may occur when the low noise converter 120 is rotated by a predetermined angle with respect to the feed horn 110 to receive a linear polarization. ) May be provided.
  • the skew compensation mechanism 160 is provided to contact the inner circumferential surface of the pulley 161 and the pulley 161 fixed to the frame 112 so that the reflector flange to which the reflector antenna 142 is coupled ( 162, a bearing 115 contacting the inner circumferential surface of the reflector flange 162, and an adapter 114 provided to contact the inner circumferential surface of the bearing 115 and coupled to the feed horn 110.
  • the rotation drive unit 164 may include a rotation drive unit 164 for rotating the pulley 161 relative to the adapter 114 and a rotation force transmitting member 163 for transmitting the rotational force of the rotation drive unit 164 to the pulley 161.
  • the rotation force transmitting member 163 may be formed of a timing belt or a chain connecting the pulley 161 and the rotation drive unit 164.
  • the belt guide 113 may be provided to maintain the tension of the timing belt.
  • the rotation force transmitting member 163 may be provided with a rotation amount detection sensor 170 for detecting the rotation amount of the rotation drive unit 164, pulley 161 or polarizers (127a, 127b).
  • the rotation amount sensor 170 detects the degree of rotation of the rotation force transmitting member 163 by the rotation force of the rotation driver 164 to control the rotation angle of the feed horn 110 or the low noise converter 120 by a controller (not shown). Can be delivered to.
  • the rotation amount detecting sensor 170 may be provided with a plurality of rotation amount detecting protrusions 171 and 172 as shown in FIG. 6.
  • the rotation amount detecting sensor 170 may include a plurality of rotation amount detecting protrusions 171 and 172 formed therein and an optical sensor that recognizes positions of the rotation amount detecting protrusions 171 and 172 according to the amount of rotation of the rotation force transmitting member 163. have.
  • the transfer mechanism 130 and the skew compensation mechanism 160 By providing the transfer mechanism 130 and the skew compensation mechanism 160, a large load may be applied to the reflector flange 162 which is fastened and fixed to the reflector antenna 142. As a result, the skew compensation mechanism 160 operates smoothly. It may not rotate. In order to prevent this, the counter weight 190 may be installed on the side of the skew compensation mechanism 160 facing the transfer mechanism 130. Referring to FIG. 5, since the low noise converter 120 and the transfer mechanism 130 are located on the same side with respect to the rotation center of the pulley 161, the low noise converter 120 and the transfer mechanism 130 are mounted on the bearing 115. The eccentric load may be applied due to the load of, and thus the life of the bearing 115 may be shortened.
  • the counter weight 190 may adjust its weight according to the load of the low noise converter 120 and the transfer mechanism 160.
  • FIG. 5 a state in which the low noise converter 120 and the transfer mechanism 130 are located in front of the rotation center of the pulley 161 and the counter weight 190 is located in the rear thereof is illustrated.
  • a ball bearing is used as the bearing 115, and in some cases, an oilless bearing that does not require a separate lubricant may be used.
  • the multi-band signal transmission and reception apparatus 100 according to an embodiment of the present invention to the satellite tracking antenna is a radome 140, the lower radome 141, the reflector antenna 142, the antenna supporter ( 144, and a position adjustment mechanism 146.
  • the radome 140 is a member forming the appearance of the multi-band signal transmission and reception device 100, the reflector antenna 142, feed horn 110, low noise converter 120, the transfer mechanism 130, the antenna supporter 144 , The position adjusting mechanism 146 and the skew compensation mechanism 160 are accommodated therein.
  • the radome 140 may be rotatably disposed at the place where the multi-band signal transmission and reception apparatus 100 is installed.
  • the reflector antenna 142 is an auxiliary antenna for reflecting a signal received from the outside to the feed horn 110 to improve the reception sensitivity of the feed horn 110.
  • a parabolic antenna is used as the reflector antenna 142.
  • the antenna supporter 144 is a member formed in the radome 140 to rotatably support the reflector antenna 142 and the feed horn 110. One end of the antenna supporter 144 may be rotatably connected to at least one of the reflector antenna 142 and the feed horn 110. Hereinafter, one end of the antenna supporter 144 will be described as being connected to the reflector antenna 142.
  • the position adjusting mechanism 146 is provided in the antenna supporter 144 and adjusts its position so that the reflector antenna 142 and the feed horn 110 can track the satellite, and the position provided in the antenna supporter 144 is provided.
  • Position adjustment mechanism 146 according to an embodiment of the present invention may have a two-axis or three-axis drive structure.
  • FIG. 6 to 9 illustrate a state in which the feed horn 110 and the waveguide 126a positioned on the right side of the waveguides of the signal transmission unit 126 coincide with each other. More specifically, referring to FIG. 8, it can be seen that the center hole of the adapter 115 to which the feed horn 110 is mounted and the waveguide 126a on the right side communicate with each other.
  • FIGS. 10 to 13 it can be seen that the center hole of the adapter 115 on which the feed horn 110 is mounted and the waveguide 126b positioned on the left side of the waveguide of the signal transmission unit 126 coincide with each other. More specifically, referring to FIG. 12, it can be seen that the low noise converter 120 is moved to the right side by the transfer mechanism 130 such that the feed horn 110 and the waveguide 126b coincide with each other.
  • a multi-band signal transmission apparatus 100 or a moving object such as a ship equipped with a satellite tracking antenna receives a Ku-band satellite signal, as shown in FIGS. While the waveguide 126a on the right side is matched to process the Ku band signal, while the moving object moves and is in a position to receive the Ka band satellite signal, the transfer mechanism 130 operates to feed the horn 110. ) And the left waveguide 126b coincide with each other to process the Ka band signal.
  • the low noise converter 120 needs to be rotated by a skew angle to ensure skew.
  • the skew compensation mechanism 160 operates to operate the low noise converter 120. It can be rotated to compensate for skew angles.
  • FIG. 14 shows a state in which the low noise converter 120 is rotated by the operation of the skew compensation mechanism 160.
  • the feed horn 110 and the waveguide 126a on the right side coincide with each other, but compared with FIG. 6, the reflector flange 162 to which the reflector antenna 142 is coupled and fixed is rotated by a predetermined angle. It can be seen that.
  • the feed horn 110 and the waveguide 126b on the left side coincide with each other, but compared with FIG. 10, the reflector flange 162 to which the reflector antenna 142 is coupled and fixed has a predetermined angle. It can be seen that it is rotated.
  • the skew compensation mechanism 160 when the signal transmitted from the satellite is a satellite signal having an arbitrary linear polarization, the satellite signal polarization and the multi-band signal transmission / reception apparatus 100 according to an embodiment of the present invention are provided.
  • the low noise converter 120 is automatically compensated by rotating the skew angle, thereby preventing the loss of the received satellite signal according to the skew angle.
  • the direction of the movement path in which the low noise converter 120 is moved by the transfer mechanism 120 is a rotation in which the low noise converter 120 or the feed horn 110 is rotated by the skew compensation mechanism 160. It may be formed to intersect the central axis.

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Abstract

The present invention relates to a multiband signal transceiver, which can simultaneously transmit and receive a multiband signal in one device, and can moreover compensate for a skew angle that occurs in the reception of linearly polarized waves. Also, the transceiver of the present invention can automatically control a location of a feed horn according to the reception sensitivity of the feed horn, and can moreover appropriately match the feed horn and processing units according to a band of a signal received by the feed horn.

Description

다중 대역 신호 송수신 장치Multiband Signal Transceiver

본 발명은 다중 대역 신호 송수신 장치에 관한 것으로서, 보다 상세하게는 다중 대역의 신호를 하나의 장치에서 송수신할 수 있고, 선형 편파 수신에 따른 스큐를 보상할 수 있는 다중 대역 신호 송수신 장치에 관한 것이다.The present invention relates to a multi-band signal transmission and reception apparatus, and more particularly, to a multi-band signal transmission and reception apparatus capable of transmitting and receiving signals of a multi-band in one device, and can compensate for skew due to linearly polarized wave reception.

리플렉터 안테나(reflector antenna)는 위성 통신, 대용량의 무선 통신 등에 보편적으로 사용되고 있다. 상기 리플렉터 안테나는 반사 망원경의 원리를 이용하여 송수신된 신호를 적어도 하나의 초점에 집중시킨다. 일반적으로 리플렉터 안테나의 초점 위치에는 혼 안테나(horn antenna) 또는 피드혼(feed horn)이 설치될 수 있다. 여기서, 리플렉터 안테나로는 파라볼릭 안테나(parabolic antenna)가 대표적으로 사용될 수 있다.Reflector antennas are commonly used in satellite communications, high-capacity wireless communications, and the like. The reflector antenna focuses the transmitted and received signals on at least one focal point using the principle of a reflective telescope. In general, a horn antenna or a feed horn may be installed at a focal position of the reflector antenna. Here, a parabolic antenna may be used as the reflector antenna.

수신된 리플렉터 안테나에서 반사되어 피드혼으로 전달되며, 피드혼은 반사된 신호를 모아서 저잡음 컨버터(LNB:Low Noise Block down converter)로 전달한다. 그리고, 상기 저잡음 컨버터는 피드혼으로부터 전달받은 신호를 중간 주파수 대역의 신호로 변환하여 외부의 RF(Radio Frequency) 모듈로 전달한다. 반대로, 피드혼으로부터 송신된 신호는 리플렉터 안테나를 통해 공중으로 방사될 수 있다. Reflected by the received reflector antenna and delivered to the feed horn, the feed horn collects the reflected signal and delivers the reflected signal to a low noise block down converter (LNB). The low noise converter converts a signal received from a feed horn into a signal of an intermediate frequency band and transmits the signal to an external RF module. In contrast, the signal transmitted from the feed horn can be radiated into the air through the reflector antenna.

여기서, 저잡음 컨버터는 신호를 수신하는 첫 단계에 해당하는 장치로서 일종의 전자 증폭기라고 할 수 있다. 저잡음 컨버터 내에서도 어느 정도의 잡음이 추가로 발생하게 되는데 저잡음 컨버터 자체에서 발생하는 잡음은 증폭되어 다음 단계로 전달될 수 있다. 최적의 시스템을 유지하기 위해서는 이 같은 잡음을 최소화해야 하는데 저잡음 컨버터는 전체 위성 송수신 시스템의 안정화를 위해 잡음 최저치를 갖도록 설계된다.Here, the low noise converter is a kind of electronic amplifier as a device corresponding to the first step of receiving a signal. Some additional noise is generated in the low noise converter, and the noise generated by the low noise converter itself can be amplified and transferred to the next stage. To maintain an optimal system, this noise must be minimized. Low noise converters are designed with noise floors to stabilize the entire satellite transceiver system.

하지만, 종래에는 다중 대역의 신호들을 송수신하고 처리하기 위하여 상기 신호의 대역 별로 복수개의 송수신 장치를 각각 별도로 설치하였다. 예를 들면, 위성 방송은 Ku 밴드 및 Ka 밴드를 통하여 각각 서비스될 수 있으나, 지금까지는 Ku 밴드 신호를 송수신하고 처리하는 Ku 밴드 신호 송수신 장치 및 Ka 밴드 신호를 송수신하고 처리하는 Ka 밴드 신호 송수신 장치를 각각 별도로 설치하였다. 따라서, 다중 대역의 신호를 송수신하기 위한 비용이 크게 증가될 뿐만 아니라, 다중 대역의 신호를 송수신하기 위한 설치 공간도 크게 증대될 수 있다.However, conventionally, in order to transmit and receive signals of multiple bands, a plurality of transmitting and receiving devices are separately provided for each band of the signals. For example, satellite broadcasting may be serviced through Ku band and Ka band, respectively, but until now, a Ku band signal transceiver for transmitting and receiving Ku band signals and a Ka band signal transceiver for transmitting and receiving Ka band signals are provided. Each was installed separately. Therefore, not only the cost for transmitting and receiving signals of the multi band can be greatly increased, but also the installation space for transmitting and receiving signals of the multi band can be greatly increased.

즉, Ku 밴드의 주파수를 이용하는 위성과 신호를 송수신하기 위해서는 Ku 밴드용 피드혼과 저잡음 컨버터를 구비해야 하고, Ka 밴드의 주파수를 이용하는 위성과 신호를 송수신하기 위해서는 Ka 밴드용 피드혼과 저잡음 컨버터를 구비해야 하는 문제가 있다. 예를 들면, Ku 밴드용 저잡음 컨버터가 구비된 위성 안테나가 설치된 선박에서 Ka 밴드를 이용하는 위성으로부터 방송을 수신하기 위해서는 사용자가 직접 Ku 밴드용 피드혼을 Ka 밴드용 피드혼으로 교체하고, Ku 밴드용 저잡음 컨버터를 Ka 밴드용 저잡음 컨버터로 교체해야 하는 불편함이 있었다.That is, a feed band for Ku band and a low noise converter must be provided in order to transmit and receive a signal with a satellite using Ku band frequency, and a feed band for Ka band and a low noise converter can be used for transmitting and receiving signals with a satellite using Ka band frequency. There is a problem to be provided. For example, in order to receive broadcasts from satellites using the Ka band in a ship equipped with a satellite antenna equipped with a low noise converter for the Ku band, the user directly replaces the feed horn for the Ku band with the feed horn for the Ka band, There was the inconvenience of replacing the low noise converter with a low noise converter for the Ka band.

이와 같은 불편함을 해소하기 위해 다수개의 피드혼이 형성된 하나의 저잡음 컨버터로 다중 대역의 신호를 처리할 수 있는 기술이 제안된 바 있다.In order to solve such inconvenience, a technique for processing a multiband signal with a single low noise converter having a plurality of feed horns has been proposed.

그러나, 이러한 다중 대역 신호를 처리할 수 있는 저잡음 컨버터의 경우에도 위성에서 송신하는 신호가 임의의 선형 편파를 갖는 위성 신호인 경우 위성 신호 편파와 안테나의 수신 편파 사이에 발생하는 스큐(skew) 각도를 자동으로 보상할 수는 없었다. 선박 등과 같은 이동체의 위치에 따라 선형 편파를 이용하는 위성과 신호를 송수신하기 위해서는 스큐 각도를 보상하기 위해 안테나 자체를 스큐 각도 만큼 회전시켜 보상해야 하는데 이러한 방법은 안테나 자체를 회전시키다 보니 안테나의 크기가 커지고 제작 비용이 많이 소요되며 전력 손실이 큰 문제점이 있었다.However, even in a low noise converter capable of processing such a multiband signal, the skew angle generated between the satellite signal polarization and the reception polarization of the antenna when the signal transmitted from the satellite is a satellite signal having an arbitrary linear polarization is used. It could not be compensated automatically. In order to transmit and receive signals with satellites using linear polarization according to the position of moving objects such as ships, the antenna itself must be rotated by the skew angle to compensate for the skew angle. This method increases the size of the antenna as the antenna itself is rotated. The manufacturing cost is high and the power loss was a big problem.

예를 들면, 선형 편파 신호(linear polarized signal)을 사용하는 유럽이나 아시아에서 임의의 선형 편파를 갖는 위성 신호를 송수신하기 위해서는 안테나를 회전시켜 스큐를 보상해야 하는 불편함이 있었고, 스큐 각도를 보상하지 않는 경우에는 위성 신호 손실이 발생하는 문제점이 있었다.For example, in Europe or Asia, where a linear polarized signal is used, in order to transmit and receive a satellite signal having an arbitrary linear polarization, the antenna has to be rotated to compensate for skew, and the skew angle is not compensated. If not, there was a problem that satellite signal loss occurs.

이러한 기존의 다중 대역 신호를 처리할 수 있는 저잡음 컨버터의 경우는 선형 편파를 수신하는 과정에서 발생하는 스큐 각도를 자동으로 보상할 수 없는 문제점이 있었다. 따라서, 최근에는 선형 편파를 수신하는 과정에서 발생하는 스큐 각도를 자동으로 보상함과 함께 여러 대역의 신호들을 송수신하고 송수신된 신호를 적절히 처리할 있는 다중 대역 신호 송수신 장치에 대한 필요성이 증가되고 있는 추세이다. 특히, 선박 또는 항공기 및 차량과 같은 이동체는, 여러 개의 저잡음 컨버터를 설치할 공간을 확보하는 것이 매우 어려울 뿐만 아니라 다양한 지역에서 여러 대역의 신호들을 전달받을 수 있기 때문에, 하나의 신호 송수신 장치로 다중 대역의 신호들을 동시에 송수신하는 기술이 매우 절실한 실정이다.In the case of such a low noise converter capable of processing a multi-band signal, there is a problem in that the skew angle generated in the process of receiving linear polarization cannot be automatically compensated. Therefore, in recent years, there is an increasing need for a multi-band signal transmission / reception apparatus capable of automatically compensating skew angles generated in the process of receiving linear polarization and transmitting and receiving signals of various bands and appropriately processing the transmitted / received signals. to be. In particular, moving objects such as ships or aircrafts and vehicles are difficult to secure a space for installing several low noise converters, and because they can receive signals of various bands in various regions, The technology for transmitting and receiving signals at the same time is very urgent.

본 발명의 일 실시예는 다중 대역의 신호들을 하나의 장치에서 송수신하고 처리할 수 있는 다중 대역 신호 송수신 장치를 제공한다.One embodiment of the present invention provides a multi-band signal transmission and reception apparatus capable of transmitting and receiving signals of a multi-band in one device.

또한, 본 발명의 일 실시예는 다중 대역의 신호들을 하나의 장치가 송수신할 수 있는 기능을 간단한 구조로 간편하게 구현할 수 있는 다중 대역 신호 송수신 장치를 제공한다.In addition, an embodiment of the present invention provides a multi-band signal transmission and reception apparatus that can easily implement a function that allows a device to transmit and receive multi-band signals in a simple structure.

또한, 본 발명의 일 실시예는 피드혼에 수신되는 신호의 대역 및 편파의 종류에 따라 그 신호가 처리될 수 있는 처리부를 용이하게 선택하여 처리할 수 있는 다중 대역 신호 송수신 장치를 제공한다.In addition, an embodiment of the present invention provides a multi-band signal transmission and reception apparatus that can easily select and process a processor capable of processing the signal according to the type of band and polarization of the signal received in the feed horn.

또한, 본 발명의 일 실시예에는 위성에서 송신되는 신호가 선형 편파인 경우 위성 신호 편파와 피드혼의 수신 편파 사이에 발생하는 스큐를 자동으로 보상할 수 있는 다중 대역 신호 송수신 장치를 제공한다.In addition, an embodiment of the present invention provides a multi-band signal transmission and reception apparatus that can automatically compensate for the skew generated between the satellite signal polarization and the reception polarization of the feed horn when the signal transmitted from the satellite is a linear polarization.

상기한 바와 같은 과제를 달성하기 위하여 본 발명의 일 실시예에 따르면, 다중 대역의 신호들을 수신하는 피드혼; 상기 피드혼이 수신한 신호를 처리하는 처리부가 상기 신호의 대역 별로 복수개가 형성된 저잡음 컨버터; 및 상기 저잡음 컨버터 또는 상기 피드혼에 구비되고, 상기 피드혼에 수신된 신호가 선형 편파인 경우 스큐 각도를 보상하도록 상기 저잡음 컨버터 또는 상기 피드혼을 회전시키는 스큐 보상 기구;를 포함하는 다중 대역 신호 송수신 장치를 제공한다.According to an embodiment of the present invention to achieve the above object, a feed horn for receiving a multi-band signal; A low noise converter having a plurality of processing units for processing the signal received by the feed horn for each band of the signal; And a skew compensation mechanism provided in the low noise converter or the feed horn and rotating the low noise converter or the feed horn to compensate for a skew angle when the signal received in the feed horn is linearly polarized. Provide the device.

상기와 같이, 스큐 보상 기구를 구비함으로써, 선형 편파를 수신하는 경우에도 스큐로 인한 신호 손실을 방지할 수 있다.As described above, by providing a skew compensation mechanism, it is possible to prevent signal loss due to skew even when linear polarization is received.

상기 저잡음 컨버터 또는 상기 피드혼에 구비되고, 상기 피드혼에 수신된 신호가 상기 신호의 대역을 처리하는 처리부에 전달되도록 상기 피드혼 또는 상기 저잡음 컨버터 중 적어도 하나를 이송시키는 이송 기구를 포함하며, 상기 처리부들은 직선 형상, 곡선 형상, 원 형상, 타원 형상, 또는 다각 형상 중 적어도 어느 한 형상으로 서로 이웃하도록 상기 저잡음 컨버터에 배치되고, 상기 저잡음 컨버터 또는 상기 피드혼 중 적어도 하나는 상기 이송 기구에 의해 상기 처리부들의 배치 형상과 동일한 경로를 따라 이송될 수 있다. 이로 인해, 하나의 저잡음 컨버터를 사용하여 다중 대역의 신호를 송신 또는 수신할 수 있다.A feed mechanism provided in the low noise converter or the feed horn and transferring at least one of the feed horn or the low noise converter so that a signal received in the feed horn is transmitted to a processing unit for processing a band of the signal, Processing units are disposed in the low noise converter so as to be adjacent to each other in at least one of a linear shape, a curved shape, a circular shape, an elliptic shape, or a polygonal shape, and at least one of the low noise converter or the feed horn is provided by the transfer mechanism. It may be transported along the same path as the arrangement shape of the processing units. This allows one low noise converter to transmit or receive signals of multiple bands.

상기 도파관들의 내부에는 상기 피드혼으로부터 전달받은 신호가 원형 편파인 경우 상기 원형 편파를 선형 편파로 변환하는 편파기가 형성될 수 있다. 편파기를 구비함으로써 원형 편파의 신호도 처리할 수 있다.A polarizer may be formed inside the waveguides to convert the circular polarization into a linear polarization when the signal received from the feed horn is a circular polarization. By providing a polarizer, a signal of circular polarization can also be processed.

상기 스큐 보상 기구는 상기 편파기를 상기 선형 편파의 편파면과 일치시키기 위해 상기 피드혼 또는 상기 저잡음 컨버터를 소정 각도 회전시킬 수 있다.The skew compensation mechanism may rotate the feed horn or the low noise converter by a predetermined angle to match the polarizer with the polarization plane of the linear polarization.

상기 피드혼에 수신된 신호와 매칭되는 상기 도파관과 상기 피드혼이 일치하도록 상기 이송 기구가 작동한 후, 상기 편파기와 상기 선형 편파의 편파면이 일치하도록 상기 스큐 보상 기구가 작동할 수 있다.After the transfer mechanism is operated such that the waveguide matching the signal received by the feed horn and the feed horn coincide, the skew compensation mechanism may be operated so that the polarization plane of the polarizer and the linear polarization coincide.

상기 스큐 보상 기구는 상기 도파관의 상단에 제공되며 상기 피드혼이 설치되는 어댑터, 상기 어댑터의 외주면에 회전 가능하게 제공되는 베어링, 상기 베어링의 외주면에 회전 가능하게 제공되는 풀리, 상기 피드혼의 일측에 구비되어 상기 풀리를 회전시키는 회전 구동부 및 상기 회전구동부와 상기 풀리를 연결하여 상기 회전구동부의 회전력을 상기 풀리에 전달하는 회전력 전달부재를 포함할 수 있다.The skew compensation mechanism is provided at an upper end of the waveguide and the adapter is installed in the feed horn, a bearing rotatably provided on the outer peripheral surface of the adapter, a pulley rotatably provided on the outer peripheral surface of the bearing, provided on one side of the feed horn And a rotational driving unit for rotating the pulley and a rotational force transmitting member for connecting the rotational driving unit and the pulley to transfer the rotational force of the rotational driving unit to the pulley.

상기 스큐 보상 기구는 상기 피드혼 또는 상기 저잡음 컨버터의 회전량을 감지하는 회전량 감지 센서를 더 포함할 수 있다. 상기 이송 기구는 상기 피드혼과 상기 저잡음 컨버터에 연결되고 상기 도파관들에 상기 피드혼을 선택적으로 매칭시키는 경로를 따라 상기 저잡음 컨버터 또는 상기 피드혼 중 적어도 하나의 이동을 안내하는 가이드부 및 상기 가이드부에 구비되고 상기 저잡음 컨버터 또는 상기 피드혼 중 적어도 하나를 상기 가이드부를 따라 이동시키는 구동부를 포함할 수 있다.The skew compensation mechanism may further include a rotation amount detection sensor configured to detect a rotation amount of the feed horn or the low noise converter. The transfer mechanism is connected to the feed horn and the low noise converter and guides and guides the movement of at least one of the low noise converter or the feed horn along a path for selectively matching the feed horn to the waveguides. It may include a driving unit for moving at least one of the low noise converter or the feed horn along the guide portion.

상기 피드혼의 일측에는 상기 스큐 보상 기구의 회전 중심을 기준으로 상기 이송 기구와 마주 보는 편에 설치되어 상기 스큐 보상 기구에 가해지는 하중의 균형을 맞추기 위한 카운터 웨이트가 형성될 수 있다.One side of the feed horn may be provided on the side facing the transfer mechanism on the basis of the center of rotation of the skew compensation mechanism to form a counter weight for balancing the load applied to the skew compensation mechanism.

상기 이송 기구가 상기 저잡음 컨버터를 이동시키는 방향은 상기 스큐 보상 기구에 의한 상기 저잡음 컨버터 또는 상기 피드혼의 회전 중심축과 교차하도록 형성될 수 있다. The direction in which the transfer mechanism moves the low noise converter may be formed to intersect the central axis of rotation of the low noise converter or the feed horn by the skew compensation mechanism.

상기 이송 기구의 구동부와 상기 스큐 보상 기구의 구동부는 상기 피드혼의 중심을 기준으로 서로 타측에 형성될 수 있다.The drive unit of the transfer mechanism and the drive unit of the skew compensation mechanism may be formed on the other side with respect to the center of the feed horn.

상기 피드혼은 Ku 밴드 대역의 신호, Ka 밴드 대역의 신호, Ku 밴드 대역의 원형 편파 신호, Ku 밴드 대역의 선형 편파 신호, Ka 밴드 대역의 원형 편파 신호 또는 Ka 밴드 대역의 선형 편파 신호 중 어느 하나의 신호를 수신할 수 있다.The feed horn is any one of a signal in a Ku band band, a signal in a Ka band band, a circular polarization signal in a Ku band band, a linear polarization signal in a Ku band band, a circular polarization signal in a Ka band band, or a linear polarization signal in a Ka band band. It can receive the signal of.

이상 설명한 바와 같이, 본 발명의 일 실시예에 따른 다중 대역 신호 송수신 장치는, 하나의 장치에서 다중 대역의 신호를 용이하게 송수신하고 처리할 수 있다. As described above, the multi-band signal transmission and reception apparatus according to an embodiment of the present invention can easily transmit and receive a multi-band signal in one device.

또한, 본 발명의 일 실시예에 따른 다중 대역 신호 송수신 장치는 하나의 장치에 간단하고 콤팩트한 구조로 형성될 수 있다. 따라서, 상기 다중 대역 신호 송수신 장치는 간편하게 제조할 수 있고 설치 공간의 확보도 용이할 수 있다. In addition, the multi-band signal transmission and reception apparatus according to an embodiment of the present invention can be formed in a simple and compact structure in one device. Therefore, the multi-band signal transmission and reception apparatus can be easily manufactured and the installation space can be easily secured.

또한, 본 발명의 일 실시예에 따른 다중 대역 신호 송수신 장치는, 다중 대역의 신호를 하나의 피드혼으로 송수신할 수 있고, 그로 인하여 피드혼의 사용 개수를 줄여 부품 비용을 절감할 수 있다. 뿐만 아니라, 저잡음 컨버터의 신호 전달부는 단수개의 피드혼에 수신된 신호들에 대한 이득 보상을 실현하기 때문에, 피드혼에 수신된 다중 대역의 신호들을 처리부들에 보다 정확히 전달할 수 있다.In addition, the multi-band signal transmission and reception apparatus according to an embodiment of the present invention can transmit and receive the signal of the multi-band in one feed horn, thereby reducing the cost of components by reducing the number of use of the feed horn. In addition, since the signal transfer unit of the low noise converter realizes gain compensation for signals received in a single feed horn, it is possible to more accurately transfer the multiband signals received in the feed horn to the processing units.

또한, 본 발명의 일 실시예에 따른 다중 대역 신호 송수신 장치는, 피드혼에 수신되는 신호의 대역 및 편파의 종류에 따라 피드혼과 매칭되는 처리부를 자동적으로 변경하기 때문에 다중 대역의 신호를 간편하게 송수신할 수 있다. 더욱이, 차량과 항공기 및 선박과 같은 이동체에서는 신호 대역이 다른 지역들을 통과하더라도 각 지역의 신호들을 모두 처리할 수 있다. In addition, the multi-band signal transmission and reception apparatus according to an embodiment of the present invention simply changes the processing unit matched with the feed horn according to the type of the band and polarization of the signal received in the feed horn, thereby easily transmitting and receiving the signal of the multi-band signal. can do. Furthermore, vehicles, such as vehicles, aircraft, and ships, can handle all signals in each region even if the signal band passes through different regions.

또한, 본 발명의 일 실시예에 따른 다중 대역 신호 송수신 장치는, 선형 편파시 발생하는 스큐를 자동으로 보상하기 때문에 신호 손실 발생을 방지할 수 있고, 스큐 보상 기구를 이용하여 저잡음 컨버터를 회전시킴으로써 스큐 보상에 소요되는 전력을 줄일 수 있다.In addition, the multi-band signal transmission and reception apparatus according to an embodiment of the present invention automatically prevents skew generated during linear polarization, thereby preventing signal loss, and skewing by rotating a low noise converter using a skew compensation mechanism. The power required for compensation can be reduced.

또한, 본 발명의 일 실시예에 따른 다중 대역 신호 송수신 장치는, 다중 대역 신호의 송수신 및 스큐 보상을 하나의 저잡음 컨버터로 구현할 수 있기 때문에 유지 보수 편의성을 높일 수 있다.In addition, the multi-band signal transmission and reception apparatus according to an embodiment of the present invention can implement the transmission and reception and the skew compensation of the multi-band signal with one low noise converter, thereby improving maintenance convenience.

도 1은 본 발명의 일 실시예에 따른 다중 대역 신호 송수신 장치가 도시된 사시도, 1 is a perspective view showing a multi-band signal transmission and reception apparatus according to an embodiment of the present invention;

도 2는 도 1에 도시된 다중 대역 신호 송수신 장치를 나타낸 측면도,2 is a side view showing the multi-band signal transmission and reception apparatus shown in FIG.

도 3은 도 1에 도시된 다중 대역 신호 송수신 장치의 요부를 나타낸 사시도,3 is a perspective view showing the main part of the multi-band signal transmission and reception apparatus shown in FIG. 1;

도 4는 도 3에 도시된 요부를 나타낸 분해 사시도,Figure 4 is an exploded perspective view showing the main portion shown in FIG.

도 5는 도 3에 도시된 요부의 스큐 보상 기구의 분해된 상태를 도시한 사시도,5 is a perspective view showing an exploded state of the skew compensation mechanism of the main part shown in FIG.

도 6은 도 3에 도시된 요부의 일 작동예를 나타낸 평면도,6 is a plan view showing an example of operation of the main portion shown in FIG.

도 7은 도 6에 도시된 요부를 나타낸 정면도,7 is a front view showing the main portion shown in FIG.

도 8은 도 6의 절단선 "A-A"에 따른 단면도,8 is a cross-sectional view taken along the cutting line "A-A" in FIG. 6;

도 9는 도 6에 도시된 요부를 나타낸 배면 사시도,9 is a rear perspective view showing the main portion shown in FIG.

도 10은 도 3에 도시된 요부의 다른 작동예를 나타낸 평면도,10 is a plan view showing another example of operation of the main portion shown in FIG.

도 11은 도 10에 도시된 요부를 나타낸 정면도,11 is a front view showing the main portion shown in FIG.

도 12는 도 10의 절단선 "B-B"에 따른 단면도,12 is a cross-sectional view taken along cut line “B-B” of FIG. 10;

도 13은 도 10에 도시된 요부를 나타낸 배면 사시도,13 is a rear perspective view showing the main portion shown in FIG.

도 14는 도 3에 도시된 요부의 또 다른 작동예를 나타낸 평면도이다.14 is a plan view showing another example of operation of the main portion shown in FIG.

이하에서, 본 발명에 따른 실시예들을 첨부된 도면을 참조하여 상세하게 설명한다. 그러나, 본 발명이 실시예들에 의해 제한되거나 한정되는 것은 아니다. 각 도면에 제시된 동일한 참조 부호는 동일한 부재를 나타낸다. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited or limited by the embodiments. Like reference numerals in the drawings denote like elements.

도 1은 본 발명의 일 실시예에 따른 다중 대역 신호 송수신 장치가 도시된 사시도, 도 2는 도 1에 도시된 다중 대역 신호 송수신 장치를 나타낸 측면도, 도 3은 도 1에 도시된 다중 대역 신호 송수신 장치의 요부를 나타낸 사시도, 도 4는 도 3에 도시된 요부를 나타낸 분해 사시도, 도 5는 도 3에 도시된 요부의 스큐 보상 기구의 분해된 상태를 도시한 사시도, 도 6은 도 3에 도시된 요부의 일 작동예를 나타낸 평면도, 도 7은 도 6에 도시된 요부를 나타낸 정면도, 도 8은 도 6의 절단선 "A-A"에 따른 단면도, 도 9는 도 6에 도시된 요부를 나타낸 배면 사시도, 도 10은 도 3에 도시된 요부의 다른 작동예를 나타낸 평면도, 도 11은 도 10에 도시된 요부를 나타낸 정면도, 도 12는 도 10의 절단선 "B-B"에 따른 단면도, 도 13은 도 10에 도시된 요부를 나타낸 배면 사시도, 도 14는 도 3에 도시된 요부의 또 다른 작동예를 나타낸 평면도이다.1 is a perspective view showing a multi-band signal transmission and reception apparatus according to an embodiment of the present invention, Figure 2 is a side view showing a multi-band signal transmission and reception apparatus shown in Figure 1, Figure 3 is a multi-band signal transmission and reception shown in Figure 1 4 is an exploded perspective view showing the main part shown in FIG. 3, FIG. 5 is an exploded perspective view showing the skew compensation mechanism of the main part shown in FIG. 3, and FIG. 6 is shown in FIG. 7 is a front view showing the main portion shown in FIG. 6, FIG. 8 is a sectional view along the cutting line "AA" of FIG. 6, FIG. 9 is a main portion shown in FIG. Back perspective view, FIG. 10 is a plan view showing another operation example of the main part shown in FIG. 3, FIG. 11 is a front view showing the main part shown in FIG. 10, FIG. 12 is a sectional view taken along the cutting line "BB" of FIG. 13 is a rear perspective view showing the main portion shown in FIG. 10, FIG. 3 is a plan view showing another example of the operation of the main part shown in FIG.

도 1과 도 2를 참조하면, 본 발명의 일 실시예에 따른 다중 대역 신호 송수신 장치(100)는 피드혼(110), 저잡음 컨버터(120), 이송 기구(130) 및 스큐 보상 기구(160)를 포함할 수 있다.1 and 2, the multi-band signal transmission and reception apparatus 100 according to an embodiment of the present invention includes a feed horn 110, a low noise converter 120, a transfer mechanism 130, and a skew compensation mechanism 160. It may include.

다중 대역 신호 송수신 장치(100)는 주로 선박 등의 이동체에 설치되어 위성(satellite)의 신호를 수신하거나 위성에 신호를 송신하는 장치로서, 위성 추적 안테나(Satellite Tracking Antenna)라고 볼 수도 있다.The multi-band signal transceiving apparatus 100 is mainly installed in a moving object such as a ship and receives a signal of a satellite or transmits a signal to a satellite, and may be referred to as a satellite tracking antenna.

다중 대역 신호 송수신 장치(100)는 다수개의 위성들로부터 복수개의 주파수 대역의 신호들을 각각 송수신할 수 있을 뿐만 아니라, 원형 편파와 선형 편파의 신호들을 각각 송수신할 수 있다. 즉, 저잡음 컨버터(120)에는 다수개의 위성들에서 송수신되는 신호의 대역 및 편파의 종류에 따라 후술하는 도파관과 처리부의 개수가 결정될 수 있다. The multi-band signal transceiving apparatus 100 may transmit and receive signals of a plurality of frequency bands from a plurality of satellites, respectively, as well as transmit and receive signals of circular polarization and linear polarization, respectively. That is, the number of waveguides and processing units to be described later may be determined in the low noise converter 120 according to types of bands and polarizations of signals transmitted and received by a plurality of satellites.

이하, 본 발명의 일 실시예에서는 설명의 편의를 위하여 피드혼(110)에 수신되는 신호가 선형 편파의 Ku 밴드 신호 및 원형 편파의 Ka 밴드 신호인 것으로 예를 들어 설명한다. 하지만, 선형 편파의 Ku 밴드 신호 및 원형 편파의 Ka 밴드의 경우는 단지 일례일 뿐이며, 그에 대하여 다양하게 조합될 수 있다. 즉 상세히 설명하면, 선형 편파의 Ku 밴드 신호 및 선형 편파의 Ka 밴드 신호, 원형 편파의 Ku 밴드 신호 및 원형 편파의 Ka 밴드 신호, 원형 편파의 Ku 밴드 신호 및 선형 편파의 Ka 밴드 신호 등의 경우도 가능하지만, 본 발명의 일 실시예에서는 편의상 그에 대한 설명은 생략하기로 한다.Hereinafter, in an embodiment of the present invention, for convenience of description, the signal received at the feed horn 110 is described as an example of a linearly polarized Ku band signal and a circularly polarized Ka band signal. However, the case of the linearly polarized Ku band signal and the circularly polarized Ka band are just examples, and various combinations can be made therefor. That is, in detail, the Ku band signal of linear polarization and the Ka band signal of linear polarization, the Ku band signal of circular polarization and the Ka band signal of circular polarization, the Ku band signal of circular polarization and the Ka band signal of linear polarization In one embodiment of the present invention, a description thereof will be omitted for convenience.

상기와 같은 Ku 밴드 신호와 Ka 밴드 신호는 위성 방송에 주로 사용되고 있는 주파수 대역의 신호들이다. 즉, Ku 밴드 신호는 12GHz로부터 18GHz까지 주파수 대역의 신호이고, Ka 밴드 신호는 18GHz로부터 30GHz까지 주파수 대역의 신호이다. The Ku band signal and the Ka band signal as described above are signals of a frequency band mainly used for satellite broadcasting. That is, the Ku band signal is a signal in the frequency band from 12 GHz to 18 GHz, and the Ka band signal is a signal in the frequency band from 18 GHz to 30 GHz.

도 1 내지 도 4를 참조하면, 피드혼(110)은 도파관(waveguide) 형태의 안테나로서, 위성으로부터 다중 대역의 신호를 수신하거나 신호를 위성에 송신하는 기능을 수행할 수 있다. 피드혼(110)는 수신하는 신호의 주파수 대역에 따라 서로 다른 직경 또는 형상으로 형성될 수 있다. 구체적으로, 피드혼(110)의 직경은 수신하는 신호의 주파수 대역이 클수록 작게 형성된다. 1 to 4, the feed horn 110 is a waveguide type antenna, and may perform a function of receiving a multi-band signal from a satellite or transmitting a signal to the satellite. The feed horn 110 may be formed in different diameters or shapes according to the frequency band of the received signal. Specifically, the diameter of the feed horn 110 is formed smaller as the frequency band of the received signal is larger.

따라서, Ku 밴드 신호용 피드혼의 직경은 Ka 밴드 신호용 피드혼의 직경보다 크게 형성될 수 있다. 본 실시예의 피드혼(110)은 Ku 밴드 신호와 Ka 밴드 신호를 모두 송수신하므로, Ku 밴드 신호용 피드혼 보다는 작은 직경으로 형성됨과 아울러 Ka 밴드 신호용 피드혼 보다는 큰 직경으로 형성될 수 있다. 예를 들면, Ku 밴드 신호용 피드혼의 직경이 18mm이고 Ka 밴드 신호용 피드혼의 직경이 11mm이면, 본 발명의 일 실시예의 피드혼은 15mm의 직경으로 형성될 수 있다.Therefore, the diameter of the feed horn for the Ku band signal may be larger than the diameter of the feed horn for the Ka band signal. Since the feed horn 110 of the present embodiment transmits and receives both the Ku band signal and the Ka band signal, the feed horn 110 may be formed with a smaller diameter than the feed horn for the Ku band signal and may be formed with a larger diameter than the feed horn for the Ka band signal. For example, if the diameter of the feed horn for the Ku band signal is 18 mm and the diameter of the feed horn for the Ka band signal is 11 mm, the feed horn of the embodiment of the present invention may be formed to a diameter of 15 mm.

또한, 피드혼(110)은 프레임(112)에 하부가 고정된 상태로 저잡음 컨버터(120)의 상측에 배치될 수 있다. 프레임(112)은 후술하는 리플렉터 안테나(142)에 장착될 수 있다.In addition, the feed horn 110 may be disposed above the low noise converter 120 with the lower portion fixed to the frame 112. The frame 112 may be mounted to the reflector antenna 142 described later.

한편, 본 발명의 일 실시예에서는 단수개의 피드혼(110)이 사용되는 것으로 설명하지만, 그에 한정되는 것은 아니다. 예를 들면, 다중 대역 신호 송수신 장치(100)가 처리하는 신호의 개수가 매우 많을 경우, 피드혼(110)을 하나만 사용하기 보다는 몇 개를 더 사용할 수도 있다. 또한, 이렇게 사용되는 여러 개의 피드혼(110)은 신호 대역에 따라 서로 다른 직경으로 형성될 수도 있다. On the other hand, in one embodiment of the present invention is described as a singular feed horn 110 is used, but is not limited thereto. For example, when the number of signals processed by the multi-band signal transceiving device 100 is very large, a few more may be used instead of only one feed horn 110. In addition, the plurality of feed horns 110 used in this way may be formed with a different diameter depending on the signal band.

도 2 내지 도 9를 참조하면, 저잡음 컨버터(120)는 피드혼(110, Feed horn)에 수신된 신호를 중간 주파수 대역의 신호로 증폭 및 주파수 변환하는 장치이다. 저잡음 컨버터(120)는 작은 잡음 지수(noise figure)를 가지도록 형성될 수 있다.2 to 9, the low noise converter 120 is an apparatus for amplifying and frequency converting a signal received at a feed horn 110 into a signal of an intermediate frequency band. The low noise converter 120 may be formed to have a small noise figure.

이와 같은 저잡음 컨버터(120, LNB: Low Noise Block down converter)는, 처리부(122a)(122b)들이 형성된 처리부 모듈(122), 처리부 모듈(122)의 외측을 감싸도록 형성된 모듈 하우징(124) 및 모듈 하우징(124)에 형성되고, 피드혼(110)이 수신한 신호가 통과되는 도파관(126a)(126b)들이 구비된 신호 전달부(126)를 포함할 수 있다. The low noise block down converter (LNB) as described above includes a processor module 122 in which the processors 122a and 122b are formed, a module housing 124 and a module formed to surround the outside of the processor module 122. It may include a signal transmission unit 126 is formed in the housing 124, the waveguides (126a) (126b) through which the signal received by the feed horn 110 passes.

처리부 모듈(122)은 하나의 기판으로 형성될 수 있다. 처리부 모듈(122)에는 다양한 주파수 대역의 신호들을 처리하는 처리부(122a)(122b)들이 서로 다른 위치에 전자 회로 형태로 형성될 수 있다. 이러한 처리부(122a)(122b)들은 피드혼(110)이 수신한 신호를 처리하는 저잡음 컨버터(120)에 포함될 수 있다.The processor module 122 may be formed of one substrate. In the processor module 122, processors 122a and 122b for processing signals of various frequency bands may be formed in electronic circuits at different positions. These processors 122a and 122b may be included in the low noise converter 120 for processing a signal received by the feed horn 110.

그리고, 처리부(122a)(122b)들은 직선 형상, 곡선 형상, 원 형상, 타원 형상, 또는 다각 형상 중 적어도 어느 한 배치 형상으로 처리부 모듈(122)에 서로 이웃하게 배치될 수 있다. 이하, 본 발명의 실시예에서는 두 개의 처리부(122a)(122b)가 직선 형상으로 이격되게 배치된 것을 예로 들어 설명한다.In addition, the processing units 122a and 122b may be disposed adjacent to each other in the processing unit module 122 in at least one of a linear shape, a curved shape, a circular shape, an elliptic shape, or a polygonal shape. Hereinafter, in the exemplary embodiment of the present invention, two processing units 122a and 122b are disposed to be spaced apart in a straight line as an example.

모듈 하우징(124)은 처리부 모듈(122)을 내부에 수용하여 외부 충격과 외부 환경으로부터 처리부 모듈(122)을 보호하는 박스 형상의 부재이다. 모듈 하우징(124)은 다이캐스팅과 같은 주조 방법으로 형성될 수 있으며, 모듈 하우징(124)와 신호 전달부(126)는 일체로 주조될 수 있다.The module housing 124 is a box-shaped member that accommodates the processor module 122 therein and protects the processor module 122 from external impact and external environment. The module housing 124 may be formed by a casting method such as die casting, and the module housing 124 and the signal transmitting unit 126 may be integrally cast.

신호 전달부(126)는 피드혼(110)에 수신된 신호를 전달받아 처리부(122a)(122b)들 중 어느 하나에 전달하는 부재이다. 신호 전달부(126)는 피드혼(110)과 대향되는 모듈 하우징(124)의 상부에 형성될 수 있다. 또한, 신호 전달부(126)는 처리부(122a)(122b)들의 배치 형상과 동일 또는 유사한 형상으로 형성될 수 있다. 이를 보다 상세히 설명하면, 처리부(122a)(122b)들의 배치 형상, 예를 들면 직선 형상, 곡선 형상, 원 형상, 타원 형상, 또는 다각 형상에 대응하는 형상으로 모듈 하우징(124)의 상부에 신호 전달부(126)의 도파관들이 형성될 수 있다. 이하에서는, 신호 전달부(126)의 도파관들이 직선 형상으로 배치 형성된 경우로 예로서 설명한다.The signal transmission unit 126 receives a signal received by the feed horn 110 and transmits the received signal to any one of the processing units 122a and 122b. The signal transmitter 126 may be formed on an upper portion of the module housing 124 facing the feed horn 110. In addition, the signal transmission unit 126 may be formed in a shape that is the same as or similar to the arrangement of the processing units 122a and 122b. In more detail, the signal is transmitted to the upper portion of the module housing 124 in a shape corresponding to the arrangement of the processing units 122a and 122b, for example, a linear shape, a curved shape, a circular shape, an ellipse shape, or a polygonal shape. Waveguides of the portion 126 may be formed. Hereinafter, the waveguides of the signal transmission unit 126 will be described as an example in a case where the waveguides are formed in a linear shape.

그리고, 신호 전달부(126)는 피드혼(110)의 하부에 이동 가능하게 연결되도록 모듈 하우징(124)의 상부에서 상측으로 돌출되게 형성될 수 있다. 상기와 같은 신호 전달부(126)에는 도파관(126a)(126b)들이 관통되게 형성될 수 있다. 도파관(126a)(126b)들은 처리부(122a)(122b)들과 대향되는 위치에 각각 형성될 수 있다. In addition, the signal transmission unit 126 may be formed to protrude upward from the upper portion of the module housing 124 to be movably connected to the lower portion of the feed horn 110. The waveguides 126a and 126b may be formed through the signal transmission unit 126 as described above. The waveguides 126a and 126b may be formed at positions facing the processing units 122a and 122b, respectively.

뿐만 아니라, 신호 전달부(126)의 상면에는 피드혼(110)의 하부가 좌우 방향으로 이동 가능하게 삽입될 수 있도록 삽입홈(미도시)이 형성될 수 있다. 따라서, 피드혼(110)은 상기 삽입홈을 따라 이동되는 과정에서 도파관(126a)(126b)들 중 어느 하나와 연통되게 위치될 수 있다. In addition, an insertion groove (not shown) may be formed on the upper surface of the signal transmission unit 126 so that the lower portion of the feed horn 110 may be inserted to be movable in the left and right directions. Therefore, the feed horn 110 may be located in communication with any one of the waveguides 126a and 126b in the process of moving along the insertion groove.

한편, 도파관(126a)(126b)들은 처리부(122a)(122b)들로 전달되는 신호들의 주파수 대역에 따라 서로 다른 크기의 단면적을 가지도록 형성될 수 있다. 위에서 설명한 피드혼(110)과 마찬가지로, 도파관(126a)(126b)들은 통과되는 신호의 주파수 대역이 클수록 작은 단면적을 가지도록 형성된다. 예를 들면, Ku 밴드 신호가 통과되는 도파관(126b)의 단면적은 Ka 밴드 신호가 통과되는 도파관(126a)의 단면적보다 크게 형성될 수 있다.Meanwhile, the waveguides 126a and 126b may be formed to have different cross-sectional areas according to frequency bands of signals transmitted to the processing units 122a and 122b. Like the feed horn 110 described above, the waveguides 126a and 126b are formed to have a smaller cross-sectional area as the frequency band of the signal passing through is larger. For example, the cross-sectional area of the waveguide 126b through which the Ku band signal passes may be greater than the cross-sectional area of the waveguide 126a through which the Ka band signal passes.

또한, 도파관(126a)의 내면에는 필요에 따라 단차부(미도시)가 형성될 수도 있다. 이와 같은 상기 단차부는 피드혼(110)과 도파관(126a,126b)의 급격한 단면적 변화를 보상하기 위하여 도파관(126a,126b)의 상부에 형성될 수 있다. 따라서, 상기 단차부는 도파관(126a,126b)의 단면적보다는 크게 형성될 수 있고, 피드혼(110)의 단면적보다는 작게 형성될 수 있다.In addition, a stepped portion (not shown) may be formed on the inner surface of the waveguide 126a as necessary. The stepped portion may be formed on the tops of the waveguides 126a and 126b to compensate for the rapid cross-sectional area change of the feed horn 110 and the waveguides 126a and 126b. Accordingly, the stepped portion may be formed larger than the cross-sectional areas of the waveguides 126a and 126b and smaller than the cross-sectional areas of the feed horn 110.

상기 단차부는 피드혼(110)과 도파관(126a,126b)의 단면적 차이를 완충시키는 천이 구간의 기능을 수행할 수 있다. 즉, 피드혼(110)으로부터 위성의 신호가 유입되는 도파관(126a,126b)의 상부에 상기 단차부가 형성되면, 피드혼(110)에 수신된 신호가 도파관(126a,126b)으로 전달되는 과정에서 발생되는 신호의 손실을 현저히 감소시킬 수 있다. The stepped portion may perform a function of a transition section for buffering a difference in cross-sectional area between the feed horn 110 and the waveguides 126a and 126b. That is, when the stepped portion is formed in the upper part of the waveguides 126a and 126b through which the signal of the satellite is introduced from the feed horn 110, the signal received by the feed horn 110 is transmitted to the waveguides 126a and 126b. The loss of signal generated can be significantly reduced.

또한, 도파관(126a,126b)들의 내부에는 필요에 따라 편파기(127a)(127b)가 형성될 수 있다. 편파기(127a)(127b)는 위성의 신호가 편파 특성을 가진 경우 이를 처리하는 장치로서, 도파관(126a)(126b)를 통과하는 신호의 편파 특성에 따라 서로 다른 형상으로 형성될 수 있다. 즉, 도 7에서는 원통 형상의 편파기(127a) 및 계단 형상으로 된 판상의 편파기(127b)를 도시하였지만, 편파기의 형상과 구현 방법은 그것에 한정되지 않고 다양한 형상과 구현 방법이 설계 조건에 따라 적용될 수 있다.In addition, polarizers 127a and 127b may be formed in the waveguides 126a and 126b as necessary. The polarizers 127a and 127b are devices for processing a satellite signal having polarization characteristics, and may be formed in different shapes according to polarization characteristics of the signal passing through the waveguides 126a and 126b. That is, although FIG. 7 illustrates the cylindrical polarizer 127a and the stepped plate-shaped polarizer 127b, the shape and implementation method of the polarizer are not limited thereto, and various shapes and implementation methods are determined by the design conditions. Can be applied accordingly.

즉, 처리부(122a)(122b)들은 반드시 선형 편파의 형태로 신호를 전달 받아야만 한다. 그러므로, 도파관(126a)(126b)들이 전달받은 신호가 원형 편파의 형태이면, 원형 편파 형태의 신호는 편파기(127a)(127b)를 통해 선형 편파의 형태로 바뀌어진다. 또한, 도파관(126a)(126b)들이 전달받은 신호가 선형 편파의 형태이면, 별도의 편파기(127a)(127b) 없이 선형 편파 형태의 신호를 처리부(122a)(122b)들로 직접 전달할 수 있다.That is, the processing units 122a and 122b must receive a signal in the form of linear polarization. Therefore, if the signal received by the waveguides 126a and 126b is in the form of circular polarization, the signal in the form of circular polarization is converted into the form of linear polarization through the polarizers 127a and 127b. In addition, when the signals received by the waveguides 126a and 126b are in the form of linear polarization, the linearly polarized signals may be directly transmitted to the processing units 122a and 122b without any separate polarizers 127a and 127b. .

또한, 저잡음 컨버터(120)에는 다수개의 커넥터(121,123)이 구비될 수 있다. 저잡음 컨버터(120)의 일측에는 커넥터(121,123)에 연결되는 케이블을 고정하기 위한 케이블 클램프(116)가 구비될 수 있다.In addition, the low noise converter 120 may include a plurality of connectors 121 and 123. One side of the low noise converter 120 may be provided with a cable clamp 116 for fixing a cable connected to the connectors (121, 123).

도 2 내지 도 9를 참조하면, 이송 기구(130)는 피드혼(110)에 수신된 신호의 대역에 따라 피드혼(110) 또는 저잡음 컨버터(120) 중 적어도 어느 하나를 선형으로 이송시키는 장치이다. 이하, 본 발명의 일 실시예에서는 피드혼(110)은 고정되고 저잡음 컨버터(120)가 이송 기구(130)에 의해 이송되는 것으로 설명한다. 즉, 이송 기구(130)는 저잡음 컨버터(120)를 직선 경로를 따라 이송시켜 도파관(126a)(126b)들 중 어느 하나와 피드혼(110)을 일치시킬 수 있다.2 to 9, the transfer mechanism 130 is a device for linearly transferring at least one of the feed horn 110 or the low noise converter 120 according to the band of the signal received by the feed horn 110. . Hereinafter, in the embodiment of the present invention, the feed horn 110 is fixed and the low noise converter 120 is described as being transferred by the transfer mechanism 130. That is, the transfer mechanism 130 may transfer the low noise converter 120 along a straight path to match the feed horn 110 with any one of the waveguides 126a and 126b.

반면에, 저잡음 컨버터(120)가 고정되고 피드혼(110)이 이송 기구(130)에 의해 이송되면, 피드혼(110)의 위치 변경으로 인하여 피드혼(110)의 수신 감도에 영향을 줄 수 있다. 따라서, 본 발명의 일 실시예와 같이 피드혼(110)을 고정시키고 저잡음 컨버터(120)를 이송하는 것이 상대적으로 더 바람직할 수 있다.On the other hand, when the low noise converter 120 is fixed and the feed horn 110 is conveyed by the transfer mechanism 130, the reception sensitivity of the feed horn 110 may be affected by the change of the position of the feed horn 110. have. Therefore, it may be more preferable to fix the feed horn 110 and to transfer the low noise converter 120 as in one embodiment of the present invention.

상기와 같이 이송 기구(130)가 저잡음 컨버터(120)를 이송시키면, 처리부(122a)(122b)들 중 피드혼(110)이 수신한 신호를 처리할 수 있는 처리부에 피드혼(110)의 신호를 전달할 수 있다. 따라서, 저잡음 컨버터(120)의 처리부(122a)(122b)들이 피드혼(110)에 수신된 다중 대역의 신호들을 선택적으로 처리할 수 있기 때문에, 하나의 장치에서 다중 대역의 신호들을 동시에 송수신할 수 있다.When the transfer mechanism 130 transfers the low noise converter 120 as described above, the signal of the feed horn 110 is processed to a processing unit capable of processing a signal received by the feed horn 110 among the processing units 122a and 122b. Can be passed. Therefore, since the processing units 122a and 122b of the low noise converter 120 can selectively process the signals of the multi-bands received by the feed horn 110, it is possible to simultaneously transmit and receive the signals of the multi-bands in one device. have.

이송 기구(130)는 피드혼(110)과 저잡음 컨버터(120)에 연결된 가이드부(132), 및 가이드부(132)에 구비되고 가이드부(132)를 따라 저잡음 컨버터(120)를 이동시키는 선형구동부(134)를 포함할 수 있다. The feed mechanism 130 is a guide portion 132 connected to the feed horn 110 and the low noise converter 120, and a linear portion provided in the guide portion 132 and moving the low noise converter 120 along the guide portion 132. The driving unit 134 may be included.

가이드부(132)는 도파관(126a)(126b)들과 피드혼(110)의 하부를 선택적으로 매칭시키는 직선 경로를 따라 저잡음 컨버터(120)의 이동을 안내하는 구조로 형성될 수 있다. 즉, 저잡음 컨버터(120)가 가이드부(132)를 따라 이동되면, 피드혼(110)의 하부는 신호 전달부(126)의 상부를 따라 이동될 수 있다. 그리고, 이 과정에서 도파관(126a)(126b)들이 피드혼(110)의 하부에 선택적으로 매칭될 수 있다. The guide part 132 may be formed to have a structure for guiding the movement of the low noise converter 120 along a straight path for selectively matching the waveguides 126a and 126b and the lower portion of the feed horn 110. That is, when the low noise converter 120 is moved along the guide part 132, the lower part of the feed horn 110 may be moved along the upper part of the signal transmission part 126. In this process, the waveguides 126a and 126b may be selectively matched to the lower portion of the feed horn 110.

따라서, 가이드부(132)는 저잡음 컨버터(120)를 처리부(122a)(122b)들의 배치 형상, 즉 직선 형상에 대응하는 이송 경로를 따라 좌우 방향으로 안내하는 형상으로 형성될 수 있다. 하지만, 가이드부(132)는 처리부(122a)(122b)들의 배치 형상에 대응하는 곡선형, 원형, 타원형, 또는 다각형의 이송 경로로 형성될 수도 있다.Therefore, the guide part 132 may be formed in a shape that guides the low noise converter 120 in a left and right direction along a transfer path corresponding to the arrangement shape of the processing units 122a and 122b, that is, the linear shape. However, the guide part 132 may be formed in a curved, circular, elliptical, or polygonal transfer path corresponding to the arrangement shape of the processing units 122a and 122b.

상기와 같은 가이드부(132)는, 프레임부(112)의 하부에 형성된 제1 가이드 돌기(132a), 제1 가이드 돌기(132a)에 고정된 가이드 로드(132c), 및 모듈 하우징(124)의 상부에 형성되고 가이드 로드(132c)를 따라 슬라이딩 이동되는 제2 가이드 돌기(132b)를 포함할 수 있다. 따라서, 저잡음 컨버터(120)는 가이드 로드(132c)를 따라 좌우 방향으로 직선 왕복될 수 있다. 가이드부(132)는 프레임부(112)과 모듈 하우징(124)에 복수개가 구비될 수 있다. 이하에서는 프레임(112)과 모듈 하우징(124)의 전방과 후방에 가이드부(132)가 각각 배치된 것으로 설명한다.The guide part 132 as described above may include the first guide protrusion 132a formed under the frame part 112, the guide rod 132c fixed to the first guide protrusion 132a, and the module housing 124. It may include a second guide protrusion (132b) formed on the top and slidingly moved along the guide rod (132c). Accordingly, the low noise converter 120 may be linearly reciprocated in the left and right directions along the guide rod 132c. The guide part 132 may be provided in plurality in the frame part 112 and the module housing 124. Hereinafter, it will be described that the guide portion 132 is disposed in front and rear of the frame 112 and the module housing 124, respectively.

제1 가이드 돌기(132a)와 제 2 가이드 돌기(132b)의 대향되는 부위에는 완충부재(미도시)가 배치될 수 있다. 상기 완충부재는 이송 기구(130)의 작동시 제1 가이드 돌기(132a)와 제2 가이드 돌기(132b)의 충돌로 인한 충격을 완충시킬 수 있다.A buffer member (not shown) may be disposed at a portion of the first guide protrusion 132a and the second guide protrusion 132b that face each other. The shock absorbing member may cushion the shock due to the collision between the first guide protrusion 132a and the second guide protrusion 132b during the operation of the transfer mechanism 130.

선형 구동부(134)는 프레임(112)의 하부에 구비된 모터 브래킷(134a), 모터 브래킷(134a)에 배치된 구동 모터(134b), 구동 모터(134b)가 이동 가능하게 배치되고 모듈 하우징(124)의 상부에 일단이 수평하게 고정된 스크류축(134c)를 포함할 수 있다.The linear drive unit 134 includes a motor bracket 134a disposed under the frame 112, a drive motor 134b disposed on the motor bracket 134a, and a drive motor 134b movably disposed, and the module housing 124. It may include a screw shaft (134c), one end of which is fixed horizontally on the top.

스크류축(134c)는 외주에 수나사가 형성된 봉 형상의 부재이며, 볼스크류(ball screw) 또는 리드스크류(lead-screw)를 사용할 수 있다. 또한, 직선 운동을 하는 리니어 모터(linear motor)를 사용할 수도 있다. The screw shaft 134c is a rod-shaped member having a male screw formed on an outer circumference thereof, and a ball screw or a lead screw may be used. It is also possible to use a linear motor that performs linear motion.

스크류축(134c)은 신호 전달부(126)의 측면에 형성된 축고정부(미도시)에 좌우 방향으로 수평한 외팔보 형상으로 배치될 수 있다. 구동 모터(134b)는 스크류축(134c)의 축방향으로 직선 이동되도록 스크류축(134c)의 수나사에 나사 체결될 수 있다. The screw shaft 134c may be arranged in a horizontal cantilever shape in a horizontal direction on an axis fixing part (not shown) formed at the side of the signal transmission part 126. The drive motor 134b may be screwed to the male screw of the screw shaft 134c to linearly move in the axial direction of the screw shaft 134c.

모터 브래킷(134a)과 구동 모터(134b)에는 구동 모터(134b)를 탄성적으로 지지하는 탄성부재(미도시)가 배치될 수 있다. 이와 같이 구동 모터(134b)가 상기 탄성부재에 의해 탄성적으로 지지되면, 구동 모터(134b)와 스크류축(134c)의 나사 결합시 수나사와 암나사의 백래쉬(backrash)로 인한 구동 모터(134b)의 미세한 흔들림을 방지하여 이송 정밀도를 향상시킬 수 있다. An elastic member (not shown) for elastically supporting the driving motor 134b may be disposed in the motor bracket 134a and the driving motor 134b. When the driving motor 134b is elastically supported by the elastic member as described above, when the driving motor 134b and the screw shaft 134c are screwed together, the driving motor 134b is caused by the backlash of the male screw and the female screw. The fine shaking can be prevented to improve the feeding accuracy.

스크류축(134c)의 양단에는 커플링(134d,134e)가 장착되고, 어느 일단의 커플링(134e)은 신호 전달부(126)에 부착 고정된 플랜지(134f)에 고정되어 스크류축(134c)의 양단을 지지할 수 있다.Couplings 134d and 134e are mounted at both ends of the screw shaft 134c, and either end of the coupling 134e is fixed to the flange 134f attached to the signal transmission unit 126 and fixed to the screw shaft 134c. It can support both ends of.

한편, 피드혼(110) 또는 저잡음 컨버터(120) 중 어느 하나에는 위치 설정 돌기(138)가 구비될 수 있고, 피드혼(110) 또는 저잡음 컨버터(120) 중 다른 하나에는 위치 설정 돌기(138)를 감지하는 위치 센서(139)가 구비될 수 있다. 이하, 본 발명의 일 실시예에서는 피드혼(110)이 고정된 프레임(112)에 위치 센서(139)가 배치되고, 저잡음 컨버터(120)의 신호 전달부(126)에 위치 설정 돌기(138)가 돌출된 것으로 설명한다. Meanwhile, any one of the feed horn 110 or the low noise converter 120 may be provided with a positioning protrusion 138, and the other of the feed horn 110 or the low noise converter 120 may have a positioning protrusion 138. Position sensor 139 for detecting the may be provided. Hereinafter, in one embodiment of the present invention, the position sensor 139 is disposed in the frame 112 to which the feed horn 110 is fixed, and the positioning protrusion 138 in the signal transmission unit 126 of the low noise converter 120. It will be described as protruding.

위치 센서(139)는 위치 설정 돌기(138)를 감지할 수 있는 다양한 종류의 센서가 사용될 수 있지만, 본 발명의 일 실시예에서는 광센서가 사용되는 것으로 설명한다. 따라서, 위치 설정 돌기(138)가 위치 센서(139)의 수광부(139a)와 발광부(139b) 사이에 배치되는 위치를 이송 기구(130)의 작동을 제어하기 위한 작동 초기 위치로 설정할 수 있다. 즉, 이송 기구(130)는 작동 초기 위치에 배치된 후 작동될 수 있다.The position sensor 139 may use various kinds of sensors capable of detecting the positioning protrusion 138, but it will be described as an optical sensor in one embodiment of the present invention. Accordingly, the position where the positioning projection 138 is disposed between the light receiving portion 139a and the light emitting portion 139b of the position sensor 139 can be set as an initial position for controlling the operation of the transfer mechanism 130. That is, the transfer mechanism 130 may be operated after being placed in the initial position of operation.

도 9를 참조하면, 수광부(139a) 및 발광부(139b)는 프레임(112)의 하면에 장착되며 센서 고정부재(139c)에 고정된다. 한편, 수광부(139a)와 발광부(139b)의 사이를 통과하는 위치 설정 돌기(138)는 제2가이드돌기(132b)에 고정되어 가이드 로드(132c)를 따라 움직일 수 있게 되어 있다. 또한, 회전 구동부(164)는 프레임(112)의 하면에 위치하는데, 프레임(112)에 결합 고정되는 모터 브라켓(165)에 의해 프레임(112)에 장착될 수 있다. 여기서, 프레임(112)의 하면에도 커넥터(121,123)에 연결되는 케이블을 고정하기 위한 케이블 클램프(116)가 구비될 수 있다.9, the light receiving unit 139a and the light emitting unit 139b are mounted on the lower surface of the frame 112 and fixed to the sensor fixing member 139c. On the other hand, the positioning projection 138 passing between the light receiving portion 139a and the light emitting portion 139b is fixed to the second guide protrusion 132b to move along the guide rod 132c. In addition, the rotation drive unit 164 is located on the lower surface of the frame 112, it may be mounted to the frame 112 by a motor bracket 165 is fixed to the frame 112. Here, the lower surface of the frame 112 may be provided with a cable clamp 116 for fixing the cables connected to the connectors (121, 123).

또한, 프레임(112)의 상부에는 피드혼(110)에 대해 저잡음 컨버터(120)를 소정 각도 만큼 회전시켜 선형 편파를 수신하는 경우에 발생할 수 있는 스큐(skew) 각도를 보상하는 스큐 보상 기구(160)가 제공될 수 있다. 도 5에 도시된 바와 같이, 스큐 보상 기구(160)는 프레임(112)에 장착 고정된 풀리(161), 풀리(161)의 내주면과 접촉하도록 제공되어 리플렉터 안테나(142)가 결합되는 리플렉터 플랜지(162), 리플렉터 플랜지(162)의 내주면과 접촉하는 베어링(115), 베어링(115)의 내주면과 접촉하도록 제공되며 피드혼(110)에 결합되는 어댑터(114)를 포함할 수 있다. 또한, 어댑터(114)에 대해 풀리(161)를 상대 회전시키는 회전 구동부(164) 및 회전 구동부(164)의 회전력을 풀리(161)에 전달하는 회전력 전달부재(163)를 포함할 수 있다. 여기서, 회전력 전달부재(163)는 풀리(161)와 회전 구동부(164)를 연결하는 타이밍 벨트 또는 체인 등으로 형성될 수 있다.In addition, the upper portion of the frame 112, the skew compensation mechanism 160 to compensate for the skew angle that may occur when the low noise converter 120 is rotated by a predetermined angle with respect to the feed horn 110 to receive a linear polarization. ) May be provided. As shown in FIG. 5, the skew compensation mechanism 160 is provided to contact the inner circumferential surface of the pulley 161 and the pulley 161 fixed to the frame 112 so that the reflector flange to which the reflector antenna 142 is coupled ( 162, a bearing 115 contacting the inner circumferential surface of the reflector flange 162, and an adapter 114 provided to contact the inner circumferential surface of the bearing 115 and coupled to the feed horn 110. In addition, it may include a rotation drive unit 164 for rotating the pulley 161 relative to the adapter 114 and a rotation force transmitting member 163 for transmitting the rotational force of the rotation drive unit 164 to the pulley 161. Here, the rotation force transmitting member 163 may be formed of a timing belt or a chain connecting the pulley 161 and the rotation drive unit 164.

회전력 전달부재(163)로 타이밍 벨트를 사용하는 경우 타이밍 벨트의 장력을 유지하기 위해 벨트 가이드(113)를 구비할 수 있다. 또한, 회전력 전달부재(163)에는 회전 구동부(164), 풀리(161) 또는 편파기(127a,127b)의 회전량을 감지하는 회전량 감지 센서(170)가 구비될 수 있다. 회전량 감지 센서(170)는 회전 구동부(164)의 회전력에 의해 회전력 전달부재(163)가 회전하는 정도를 감지하여 피드혼(110) 또는 저잡음 컨버터(120)의 회전각도를 제어부(미도시)에 전달할 수 있다. 회전량 감지 센서(170)에는 도 6에 도시된 바와 같이 복수개의 회전량 감지 돌기(171,172)가 제공될 수 있다. 회전량 감지 센서(170)는 복수개가 형성된 회전량 감지 돌기(171,172) 및 회전력 전달부재(163)의 회전량에 따라 회전량 감지 돌기(171,172)의 위치를 인식하는 광센서를 포함하여 구성될 수 있다.When the timing belt is used as the rotation force transmitting member 163, the belt guide 113 may be provided to maintain the tension of the timing belt. In addition, the rotation force transmitting member 163 may be provided with a rotation amount detection sensor 170 for detecting the rotation amount of the rotation drive unit 164, pulley 161 or polarizers (127a, 127b). The rotation amount sensor 170 detects the degree of rotation of the rotation force transmitting member 163 by the rotation force of the rotation driver 164 to control the rotation angle of the feed horn 110 or the low noise converter 120 by a controller (not shown). Can be delivered to. The rotation amount detecting sensor 170 may be provided with a plurality of rotation amount detecting protrusions 171 and 172 as shown in FIG. 6. The rotation amount detecting sensor 170 may include a plurality of rotation amount detecting protrusions 171 and 172 formed therein and an optical sensor that recognizes positions of the rotation amount detecting protrusions 171 and 172 according to the amount of rotation of the rotation force transmitting member 163. have.

이송 기구(130)와 스큐 보상 기구(160)를 구비함으로써 리플렉터 안테나(142)와 체결 고정되는 리플렉터 플랜지(162)에 많은 하중이 걸릴 수 있고, 이로 인해 스큐 보상 기구(160)가 원활하게 작동 내지 회전하지 않을 수 있다. 이를 방지하기 위해 스큐 보상 기구(160)를 중심으로 이송 기구(130)와 마주 보는 편에 카운터 웨이트(190)를 설치할 수 있다. 도 5를 참조하면, 풀리(161)의 회전 중심을 기준으로 저잡음 컨버터(120) 및 이송 기구(130)가 동일한 일측에 위치하기 때문에 베어링(115)에 저잡음 컨버터(120) 및 이송 기구(130)의 하중으로 인한 편심 하중이 가해질 수 있고, 이로 인해 베어링(115)의 수명이 단축될 수 있다. 이러한 편심 하중을 방지하기 위해 풀리(161)의 회전 중심을 기준으로 저잡음 컨버터(120) 및 이송 기구(130)와 마주 보는 반대편에 카운터 웨이트(190)를 설치하는 것이 바람직하다. 이 때, 카운터 웨이트(190)는 저잡음 컨버터(120) 및 이송 기구(160)의 하중에 따라 그 중량을 조절할 수 있다. 도 5에는 저잡음 컨버터(120) 및 이송 기구(130)가 풀리(161)의 회전 중심을 기준으로 전방에 위치하며 카운터 웨이트(190)는 그 후방에 위치하는 상태가 도시되어 있다. 여기서, 베어링(115)으로는 볼 베어링을 사용하며, 경우에 따라서는 별도의 윤활유가 필요하지 않은 오일레스(oilless) 베어링도 사용할 수 있다. 만약 윤활유를 필요로 하는 베어링을 사용하는 경우라면 장시간 사용함에 따라 윤활유를 교체하는 등의 유지 보수 작업이 필요하거나 별도의 급유구조를 구비해야 하는데, 오일레스 베어링을 사용하는 경우에는 유지 보수의 횟수를 줄이거나 별도의 급유구조를 구비할 필요가 없다.By providing the transfer mechanism 130 and the skew compensation mechanism 160, a large load may be applied to the reflector flange 162 which is fastened and fixed to the reflector antenna 142. As a result, the skew compensation mechanism 160 operates smoothly. It may not rotate. In order to prevent this, the counter weight 190 may be installed on the side of the skew compensation mechanism 160 facing the transfer mechanism 130. Referring to FIG. 5, since the low noise converter 120 and the transfer mechanism 130 are located on the same side with respect to the rotation center of the pulley 161, the low noise converter 120 and the transfer mechanism 130 are mounted on the bearing 115. The eccentric load may be applied due to the load of, and thus the life of the bearing 115 may be shortened. In order to prevent such an eccentric load, it is preferable to install the counter weight 190 on the opposite side facing the low noise converter 120 and the transfer mechanism 130 based on the rotation center of the pulley 161. At this time, the counter weight 190 may adjust its weight according to the load of the low noise converter 120 and the transfer mechanism 160. In FIG. 5, a state in which the low noise converter 120 and the transfer mechanism 130 are located in front of the rotation center of the pulley 161 and the counter weight 190 is located in the rear thereof is illustrated. Here, a ball bearing is used as the bearing 115, and in some cases, an oilless bearing that does not require a separate lubricant may be used. If you use a bearing that requires lubricating oil, maintenance work such as replacing the lubricating oil is necessary or you need to have a separate oil lubrication structure as you use the oil for a long time. There is no need to reduce or provide a separate lubrication structure.

도 1과 도 2를 참조하면, 본 발명의 일 실시예에 따른 다중 대역 신호 송수신 장치(100) 내지 위성 추적 안테나는 레이돔(140), 하부 레이돔(141), 리플렉터 안테나(142), 안테나 서포터(144), 및 위치 조절 기구(146)를 더 포함할 수 있다.1 and 2, the multi-band signal transmission and reception apparatus 100 according to an embodiment of the present invention to the satellite tracking antenna is a radome 140, the lower radome 141, the reflector antenna 142, the antenna supporter ( 144, and a position adjustment mechanism 146.

레이돔(140)은 다중 대역 신호 송수신 장치(100)의 외관을 형성하는 부재로써, 리플렉터 안테나(142), 피드혼(110), 저잡음 컨버터(120), 이송 기구(130), 안테나 서포터(144), 위치 조절 기구(146) 및 스큐 보상 기구(160)를 내부에 수용한다. 이러한 레이돔(140)은 다중 대역 신호 송수신 장치(100)가 설치되는 장소에 회전 가능하게 배치될 수도 있다.The radome 140 is a member forming the appearance of the multi-band signal transmission and reception device 100, the reflector antenna 142, feed horn 110, low noise converter 120, the transfer mechanism 130, the antenna supporter 144 , The position adjusting mechanism 146 and the skew compensation mechanism 160 are accommodated therein. The radome 140 may be rotatably disposed at the place where the multi-band signal transmission and reception apparatus 100 is installed.

리플렉터 안테나(142)는 외부로부터 수신되는 신호를 피드혼(110)으로 반사시켜 피드혼(110)의 수신 감도를 향상시키는 보조 안테나이다. 이하, 본 발명의 일 실시예에서는 리플렉터 안테나(142)로 파라볼릭 안테나(parabolic antenna)가 사용되는 것으로 설명한다. The reflector antenna 142 is an auxiliary antenna for reflecting a signal received from the outside to the feed horn 110 to improve the reception sensitivity of the feed horn 110. Hereinafter, in an embodiment of the present invention, a parabolic antenna is used as the reflector antenna 142.

안테나 서포터(144)는 레이돔(140)에 형성되어 리플렉터 안테나(142)와 피드혼(110)을 회전 가능하게 지지하는 부재이다. 안테나 서포터(144)의 일단은 리플렉터 안테나(142) 또는 피드혼(110) 중 적어도 하나에 회전 가능하게 연결될 수 있다. 이하에서는 안테나 서포터(144)의 일단이 리플렉터 안테나(142)에 연결된 것으로 설명한다.The antenna supporter 144 is a member formed in the radome 140 to rotatably support the reflector antenna 142 and the feed horn 110. One end of the antenna supporter 144 may be rotatably connected to at least one of the reflector antenna 142 and the feed horn 110. Hereinafter, one end of the antenna supporter 144 will be described as being connected to the reflector antenna 142.

위치 조절 기구(146)는 안테나 서포터(144)에 구비되어 리플렉터 안테나(142)와 피드혼(110)이 위성을 추적할 수 있도록 그 위치를 조절하는 장치로서, 안테나 서포터(144)에 구비된 위치 조절 모터(146a), 리플렉터 안테나(142)의 회전축에 형성된 위치 조절 기어(146b), 위치 조절 모터(146a)의 회전축에 구비된 기어와 위치 조절 기어(146b)에 배치된 위치 조절 벨트(146c)를 포함할 수 있다. 본 발명의 일 실시예에 따른 위치 조절 기구(146)는 2축 또는 3축 구동 구조를 가질 수 있다.The position adjusting mechanism 146 is provided in the antenna supporter 144 and adjusts its position so that the reflector antenna 142 and the feed horn 110 can track the satellite, and the position provided in the antenna supporter 144 is provided. Position adjustment gear 146b formed on the rotation shaft of the adjustment motor 146a, the reflector antenna 142, gear provided on the rotation shaft of the position adjustment motor 146a, and the position adjustment belt 146c arrange | positioned at the position adjustment gear 146b. It may include. Position adjustment mechanism 146 according to an embodiment of the present invention may have a two-axis or three-axis drive structure.

이하에서는 도면을 참조하여 이송 기구(130) 및 스큐 보상 기구(160)를 구비한 다중 대역 신호 송수신 장치(100) 내지는 위성 추적 안테나가 다중 대역을 신호를 수신하는 동작 및 선형 편파를 수신하는 경우 스큐 각도를 보상하는 동작에 대해서 설명한다.Hereinafter, referring to the drawings, when a multi-band signal transmission / reception apparatus 100 having a transfer mechanism 130 and a skew compensation mechanism 160 or a satellite tracking antenna receives a multi-band signal and receives linear polarization, The operation of compensating the angle will be described.

우선 도 6 내지 도 9에는 피드혼(110)과 신호전달부(126)의 도파관 중 우측에 위치하는 도파관(126a)이 일치하는 상태가 도시되어 있다. 보다 자세하게는, 도 8을 참조하면 피드혼(110)이 장착되는 어댑터(115)의 중앙 통공과 우측의 도파관(126a)이 연통되어 있음을 알 수 있다. 6 to 9 illustrate a state in which the feed horn 110 and the waveguide 126a positioned on the right side of the waveguides of the signal transmission unit 126 coincide with each other. More specifically, referring to FIG. 8, it can be seen that the center hole of the adapter 115 to which the feed horn 110 is mounted and the waveguide 126a on the right side communicate with each other.

한편, 도 10 내지 도 13에는 피드혼(110)이 장착되는 어댑터(115)의 중앙 통공과 신호전달부(126)의 도파관 중 좌측에 위치하는 도파관(126b)이 서로 일치함을 알 수 있다. 보다 자세하게는, 도 12를 참조하면, 이송 기구(130)에 의해 저잡음 컨버터(120)가 우측으로 이동되어 피드혼(110)과 도파관(126b)이 일치하는 상태가 되었음을 알 수 있다. Meanwhile, in FIGS. 10 to 13, it can be seen that the center hole of the adapter 115 on which the feed horn 110 is mounted and the waveguide 126b positioned on the left side of the waveguide of the signal transmission unit 126 coincide with each other. More specifically, referring to FIG. 12, it can be seen that the low noise converter 120 is moved to the right side by the transfer mechanism 130 such that the feed horn 110 and the waveguide 126b coincide with each other.

예를 들면, 다중 대역 신호 송수신 장치(100) 내지는 위성 추적 안테나가 탑재된 선박 등의 이동체가 Ku 밴드의 위성 신호를 수신하는 경우에는 도 6 내지 도 9에 도시된 바와 같이 피드혼(110)과 우측의 도파관(126a)이 일치하게 하여 Ku 밴드의 신호를 처리하는 반면, 상기 이동체가 이동하여 Ka 밴드의 위성 신호를 수신하는 위치에 있게 되는 경우에는 이송 기구(130)가 작동하여 피드혼(110)과 좌측의 도파관(126b)이 일치하게 하여 Ka 밴드 신호를 처리하게 된다.For example, when a multi-band signal transmission apparatus 100 or a moving object such as a ship equipped with a satellite tracking antenna receives a Ku-band satellite signal, as shown in FIGS. While the waveguide 126a on the right side is matched to process the Ku band signal, while the moving object moves and is in a position to receive the Ka band satellite signal, the transfer mechanism 130 operates to feed the horn 110. ) And the left waveguide 126b coincide with each other to process the Ka band signal.

한편, 다중 대역 신호 송수신 장치(100) 내지는 위성 추적 안테나가 탑재된 선박 등의 이동체가 Ku 밴드 대역의 선형 편파 신호를 수신하거나 Ka 밴드 대역의 선형 편파 신호를 수신하는 경우에는 수신 편파에 발생한 스큐(skew)를 보장하기 위해 저잡음 컨버터(120)를 스큐 각도만큼 회전시켜야 하는 경우가 발생할 수도 있다. 이 때, 이송 기구(130)에 의해 수신 신호 대역에 맞는 도파관과 피드혼(110)이 일치하도록 저잡음 컨버터(120)가 이동된 후, 스큐 보상 기구(160)가 작동하여 저잡음 컨버터(120)를 회전시켜 스큐 각도를 보상할 수 있다. On the other hand, when a multi-band signal transmission apparatus 100 or a mobile object such as a ship equipped with a satellite tracking antenna receives a linearly polarized signal in the Ku band band or receives a linearly polarized signal in the Ka band band, In some cases, the low noise converter 120 needs to be rotated by a skew angle to ensure skew. At this time, after the low noise converter 120 is moved by the transfer mechanism 130 to match the waveguide and feed horn 110 corresponding to the reception signal band, the skew compensation mechanism 160 operates to operate the low noise converter 120. It can be rotated to compensate for skew angles.

도 14에는 스큐 보상 기구(160)의 작동에 의해 저잡음 컨버터(120)가 회전된 상태가 도시되어 있다. 도 14의 (a)의 경우는 피드혼(110)과 우측의 도파관(126a)이 일치하는 상태인데 도 6과 비교하면, 리플렉터 안테나(142)가 결합 고정되는 리플렉터 플랜지(162)가 소정 각도 회전되어 있음을 알 수 있다. 또한, 도 14의 (b)의 경우는 피드혼(110)과 좌측의 도파관(126b)이 일치하는 상태인데 도 10과 비교하면 리플렉터 안테나(142)가 결합 고정되는 리플렉터 플랜지(162)가 소정 각도 회전되어 있음을 알 수 있다. 이와 같이, 스큐 보상 기구(160)를 구비함으로써, 위성에서 송신하는 신호가 임의의 선형 편파를 갖는 위성 신호인 경우 위성 신호 편파와 본 발명의 일 실시예에 따른 다중 대역 신호 송수신 장치(100)의 수신 편파에 스큐가 발생하는 경우 자동적으로 저잡음 컨버터(120)를 스큐 각도 만큼 회전시켜 보상하기 때문에 스큐 각도에 따라 수신되는 위성 신호의 손실이 발생하는 것을 방지할 수 있다.14 shows a state in which the low noise converter 120 is rotated by the operation of the skew compensation mechanism 160. In the case of FIG. 14A, the feed horn 110 and the waveguide 126a on the right side coincide with each other, but compared with FIG. 6, the reflector flange 162 to which the reflector antenna 142 is coupled and fixed is rotated by a predetermined angle. It can be seen that. In addition, in the case of FIG. 14B, the feed horn 110 and the waveguide 126b on the left side coincide with each other, but compared with FIG. 10, the reflector flange 162 to which the reflector antenna 142 is coupled and fixed has a predetermined angle. It can be seen that it is rotated. As such, by providing the skew compensation mechanism 160, when the signal transmitted from the satellite is a satellite signal having an arbitrary linear polarization, the satellite signal polarization and the multi-band signal transmission / reception apparatus 100 according to an embodiment of the present invention are provided. When skew occurs in the reception polarization, the low noise converter 120 is automatically compensated by rotating the skew angle, thereby preventing the loss of the received satellite signal according to the skew angle.

본 발명의 일 실시예에 따른 이송 기구(120)에 의해 저잡음 컨버터(120)가 움직이는 이동 경로의 방향은 스큐 보상 기구(160)에 의해 저잡음 컨버터(120) 또는 피드혼(110)이 회전하는 회전 중심축과 교차하도록 형성될 수 있다. The direction of the movement path in which the low noise converter 120 is moved by the transfer mechanism 120 according to an embodiment of the present invention is a rotation in which the low noise converter 120 or the feed horn 110 is rotated by the skew compensation mechanism 160. It may be formed to intersect the central axis.

이상과 같이 본 발명의 일실시예에서는 구체적인 구성 요소 등과 같은 특정 사항들과 한정된 실시예 및 도면에 의해 설명되었으나 이는 본 발명의 보다 전반적인 이해를 돕기 위해서 제공된 것일 뿐, 본 발명은 상기의 실시예에 한정되는 것은 아니며, 본 발명이 속하는 분야에서 통상적인 지식을 가진 자라면 이러한 기재로부터 다양한 수정 및 변형이 가능하다. 따라서, 본 발명의 사상은 설명된 실시예에 국한되어 정해져서는 아니 되며, 후술하는 특허청구범위뿐 아니라 이 특허청구범위와 균등하거나 등가적 변형이 있는 모든 것들은 본 발명 사상의 범주에 속한다고 할 것이다.As described above, one embodiment of the present invention has been described by specific embodiments such as specific components and the like, but the embodiments and the drawings are provided only to help a more general understanding of the present invention. The present invention is not limited thereto, and various modifications and variations can be made by those skilled in the art to which the present invention pertains. Therefore, the spirit of the present invention should not be limited to the described embodiments, and all of the equivalents and equivalents of the claims, as well as the following claims, will fall within the scope of the present invention. .

본 명세서에 포함되어 있음.Included herein.

Claims (13)

다중 대역의 신호들을 수신하는 피드혼; A feed horn for receiving signals of multiple bands; 상기 피드혼이 수신한 신호를 처리하는 처리부가 상기 신호의 대역 별로 복수개가 형성된 저잡음 컨버터; 및A low noise converter having a plurality of processing units for processing the signal received by the feed horn for each band of the signal; And 상기 저잡음 컨버터 또는 상기 피드혼에 구비되고, 상기 피드혼에 수신된 신호가 선형 편파인 경우 스큐 각도를 보상하도록 상기 저잡음 컨버터 또는 상기 피드혼을 회전시키는 스큐 보상 기구;A skew compensation mechanism provided in the low noise converter or the feed horn and rotating the low noise converter or the feed horn so as to compensate for a skew angle when the signal received in the feed horn is a linear polarization; 를 포함하는 다중 대역 신호 송수신 장치.Multi-band signal transmission and reception device comprising a. 제1항에 있어서, The method of claim 1, 상기 저잡음 컨버터 또는 상기 피드혼에 구비되고, 상기 피드혼에 수신된 신호가 상기 신호의 대역을 처리하는 처리부에 전달되도록 상기 피드혼 또는 상기 저잡음 컨버터 중 적어도 하나를 이송시키는 이송 기구를 포함하며,A feed mechanism provided in the low noise converter or the feed horn and transferring at least one of the feed horn or the low noise converter so that a signal received in the feed horn is transmitted to a processing unit for processing a band of the signal, 상기 처리부들은 직선 형상, 곡선 형상, 원 형상, 타원 형상, 또는 다각 형상 중 적어도 어느 한 형상으로 서로 이웃하도록 상기 저잡음 컨버터에 배치되고, The processing units are disposed in the low noise converter so as to be adjacent to each other in at least one of a straight line, a curved line, a circle, an ellipse, and a polygonal shape. 상기 저잡음 컨버터 또는 상기 피드혼 중 적어도 하나는 상기 이송 기구에 의해 상기 처리부들의 배치 형상과 동일한 경로를 따라 이송되는 다중 대역 신호 송수신 장치.And at least one of the low noise converter or the feed horn is conveyed along the same path as the arrangement shape of the processing units by the transfer mechanism. 제2항에 있어서,The method of claim 2, 상기 저잡음 컨버터는,The low noise converter, 상기 처리부들이 형성된 처리부 모듈;A processor module in which the processors are formed; 상기 처리부 모듈의 외측을 감싸도록 형성된 모듈 하우징; 및 A module housing formed to surround the outside of the processor module; And 상기 모듈 하우징에 형성되고, 상기 피드혼에 수신된 신호가 상기 처리부들 중 어느 하나에 선택적으로 전달되도록 상기 처리부들과 대향되는 위치에 도파관들이 각각 관통되게 형성된 신호 전달부;를 구비하며,And a signal transmission unit formed in the module housing and configured to allow the waveguides to penetrate at positions facing the processing units so that the signal received by the feed horn is selectively transmitted to any one of the processing units. 상기 도파관들은 상기 처리부들에 의해 처리되는 신호의 대역에 따라 서로 다른 형상으로 형성된 다중 대역 신호 송수신 장치.The waveguides are multi-band signal transmission and reception device formed in a different shape according to the band of the signal processed by the processing unit. 제3항에 있어서,The method of claim 3, 상기 도파관들의 내부에는 상기 피드혼으로부터 전달받은 신호가 원형 편파인 경우 상기 원형 편파를 선형 편파를 변환하는 편파기가 형성된 다중 대역 신호 송수신 장치.And a polarizer for converting the linear polarization into a linear polarization when the signal received from the feed horn is a circular polarization. 제4항에 있어서,The method of claim 4, wherein 상기 스큐 보상 기구는 상기 편파기를 상기 선형 편파의 편파면과 일치시키기 위해 상기 피드혼 또는 상기 저잡음 컨버터를 소정 각도 회전시키는 다중 대역 신호 송수신 장치.And the skew compensation mechanism rotates the feed horn or the low noise converter by a predetermined angle to match the polarizer with the polarization plane of the linear polarization. 제5항에 있어서,The method of claim 5, 상기 피드혼에 수신된 신호와 매칭되는 상기 도파관과 상기 피드혼이 일치하도록 상기 이송 기구가 작동한 후, 상기 편파기와 상기 선형 편파의 편파면이 일치하도록 상기 스큐 보상 기구가 작동하는 다중 대역 송수신 장치.A multi-band transmitting / receiving device in which the skew compensation mechanism operates so that the waveguide matching the signal received in the feed horn and the feed horn coincide with each other, and then the polarization plane of the polarizer and the linear polarized wave coincide. . 제5항에 있어서,The method of claim 5, 상기 스큐 보상 기구는,The skew compensation mechanism, 상기 도파관의 상단에 제공되며, 상기 피드혼이 설치되는 어댑터;An adapter provided at an upper end of the waveguide and installed with the feed horn; 상기 어댑터의 외주면에 회전 가능하게 제공되는 베어링;A bearing rotatably provided on an outer circumferential surface of the adapter; 상기 베어링의 외주면에 회전 가능하게 제공되는 풀리;A pulley rotatably provided on an outer circumferential surface of the bearing; 상기 피드혼의 일측에 구비되어 상기 풀리를 회전시키는 회전 구동부; 및A rotation drive unit provided at one side of the feed horn to rotate the pulley; And 상기 회전구동부와 상기 풀리를 연결하여 상기 회전구동부의 회전력을 상기 풀리에 전달하는 회전력 전달부재;A rotational force transmission member connecting the rotational drive unit and the pulley to transmit the rotational force of the rotational drive unit to the pulley; 를 포함하는 다중 대역 신호 송수신 장치.Multi-band signal transmission and reception device comprising a. 제5항에 있어서,The method of claim 5, 상기 스큐 보상 기구는 상기 피드혼 또는 상기 저잡음 컨버터의 회전량을 감지하는 회전량 감지 센서를 더 포함하는 다중 대역 신호 송수신 장치.The skew compensation mechanism further comprises a rotation amount detection sensor for detecting the rotation amount of the feed horn or the low noise converter. 제2항 내지 제8항 중 어느 한 항에 있어서,The method according to any one of claims 2 to 8, 상기 이송 기구는,The transfer mechanism, 상기 피드혼과 상기 저잡음 컨버터에 연결되고, 상기 도파관들에 상기 피드혼을 선택적으로 매칭시키는 경로를 따라 상기 저잡음 컨버터 또는 상기 피드혼 중 적어도 하나의 이동을 안내하는 가이드부; 및A guide unit coupled to the feed horn and the low noise converter and guiding movement of at least one of the low noise converter or the feed horn along a path for selectively matching the feed horn to the waveguides; And 상기 가이드부에 구비되고, 상기 저잡음 컨버터 또는 상기 피드혼 중 적어도 하나를 상기 가이드부를 따라 이동시키는 구동부;A driving part provided in the guide part and moving at least one of the low noise converter or the feed horn along the guide part; 를 포함하는 다중 대역 신호 송수신 장치.Multi-band signal transmission and reception device comprising a. 제9항에 있어서,The method of claim 9, 상기 피드혼의 일측에는, 상기 스큐 보상 기구의 회전 중심을 기준으로 상기 이송 기구와 마주 보는 편에 설치되어 상기 스큐 보상 기구에 가해지는 하중의 균형을 맞추기 위한 카운터 웨이트가 형성된, 다중 대역 신호 송수신 장치.One side of the feed horn, the multi-band signal transmission and reception device is provided on the side facing the transfer mechanism on the basis of the rotation center of the skew compensation mechanism is formed to balance the load applied to the skew compensation mechanism. 제9항에 있어서,The method of claim 9, 상기 이송 기구가 상기 저잡음 컨버터를 이동시키는 방향은 상기 스큐 보상 기구에 의한 상기 저잡음 컨버터 또는 상기 피드혼의 회전 중심축과 교차하도록 형성된 다중 대역 신호 송수신 장치. And the direction in which the transfer mechanism moves the low noise converter crosses the low noise converter or the central axis of rotation of the feed horn by the skew compensation mechanism. 제10항에 있어서,The method of claim 10, 상기 이송 기구의 구동부와 상기 스큐 보상 기구의 구동부는 상기 피드혼의 중심을 기준으로 서로 타측에 형성된, 다중 대역 신호 송수신 장치.And a drive unit of the transfer mechanism and a drive unit of the skew compensation mechanism are formed on the other side with respect to the center of the feed horn. 제9항에 있어서,The method of claim 9, 상기 피드혼에는 Ku 밴드 대역의 신호, Ka 밴드 대역의 신호, Ku 밴드 대역의 원형 편파 신호, Ku 밴드 대역의 선형 편파 신호, Ka 밴드 대역의 원형 편파 신호 또는 Ka 밴드 대역의 선형 편파 신호 중 어느 하나의 신호가 수신되는, 다중 대역 신호 송수신 장치.The feed horn includes any one of a signal of a Ku band band, a signal of Ka band band, a circular polarization signal of Ku band band, a linear polarization signal of Ku band band, a circular polarization signal of Ka band band, or a linear polarization signal of Ka band band. Multi-band signal transmission and reception device, the signal of.
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