KR100985048B1 - Circular cylindrical array antenna device - Google Patents

Abstract

The present invention, a switching module; A radiation member in which a plurality of antenna elements are arranged along the longitudinal direction; And a transmitting / receiving module unit coupled to the radiating member, wherein the plurality of radiating members are arranged along the circumferential direction to form a cylindrical shape, and the switching module is coupled to the transmitting / receiving module unit to perform a transmitting / receiving operation among the radiating members. An antenna device of a cylindrical arrangement for setting a radiation member is disclosed. The antenna device configured as described above is arranged to form a cylindrical shape, so that even if the antenna device does not rotate itself, it is possible to scan the full range of 360 degrees, so it is easy to miniaturize, it is possible to scan in all directions even in a stationary state It also reduces the risk of exposure because it causes less attention.

Description

Cylindrical Array Antenna Unit {CIRCULAR CYLINDRICAL ARRAY ANTENNA DEVICE}

The present invention relates to an antenna device, and more particularly, to an antenna device used for observation equipment such as radar.

Typically, radar equipment radiates radio waves to detect distances to targets and the like through radio waves reflected from targets. Such radar equipment includes an antenna device that radiates and enters radio waves, a signal processor and transceiver for processing and transmitting / receiving radio signals, and a screen indicator for displaying a detected / tracked target. Such radar equipment is used for military purposes or usefully in transportation such as aircraft and ships.

 At this time, the antenna device for the radar equipment is used a single plane antenna, for the omnidirectional monitoring such a single plane antenna must be rotated mechanically. This requires additional mechanical elements such as slip rings and rotary joints, and additional circuit losses are inevitable to provide electrical connection to the rotating antenna device. In addition, radar using such a rotary antenna device not only causes noise, but also has a disadvantage of being easily exposed to the general public.

On the other hand, a radar may be formed using an antenna device having a non-rotating structure. In this case, since four single planar antennas must be arranged in a rectangular shape, there is an obstacle to miniaturization.

Accordingly, the present invention is to provide an antenna device for a radar miniaturized while the rotation is not required.

In addition, since the present invention does not require rotation, it is an object of the present invention to provide an antenna apparatus for a radar that can improve an additional loss in an electrical connection structure and suppress noise generation.

In addition, in position detection of an unmanned aerial vehicle or a mortar / cannon / artillery / personal portable heavy weapons, it is easy to conceal radar equipment and to provide a small / lightweight antenna device.

Accordingly, the present invention provides a switching module; A radiation member in which a plurality of antenna elements are arranged along the longitudinal direction; And a transmission / reception module unit coupled to the radiation member,

A plurality of the radiation member is arranged along the circumferential direction to form a cylindrical shape, the switching module is coupled to the transmission and reception module portion discloses an antenna arrangement of the cylindrical arrangement for setting the radiation member for performing the transmission and reception operation of the radiation member do.

In this case, the radiating member may be formed of an array of eight antenna elements.

In addition, in the cylindrical shape formed by the radiating members, it is preferable that the transmitting and receiving module is located inside, and the radiating members are located on the outer peripheral surface side of the cylindrical shape.

In addition, the switching module is preferably located on the inner side than the transmission and reception module portion in the cylindrical shape formed by the radiation member.

In this antenna device, twenty four radiating members may be arranged along the circumferential direction, and the twenty four transmitting and receiving module units may be coupled to each of the radiating members.

Meanwhile, four switching modules may be disposed, and each switching module may be combined with nine transmission / reception module units.

In this case, each of the switching modules operates the radiation members coupled to six selected transmission / reception module units among the nine transmission / reception module units coupled thereto.

The radiating members operated by the switching module may be configured as radiating radiating members for scanning an angular range of ± 22.5 degrees.

At the same time, it is preferable that the radiating members operated by the switching module scan four directions at 90 degree intervals.

In addition, in the first scan operation of the switching module, the radiating members scan an angular range of ± 22.5 degrees in four directions spaced at 90 degree intervals, and in the other four directions spaced at 90 degree intervals in a second scan operation. It is desirable to scan an angular range of ± 22.5 degrees.

In configuring such an antenna device, the switching module, the radiation member, and the transmission / reception module unit may be accommodated in a cylindrical radome.

Meanwhile, three switching modules may be disposed, and each switching module may be combined with 12 transmission / reception module units.

In this case, each of the switching modules operates the radiation members coupled to eight selected transmission / reception module units among the twelve transmission / reception module units coupled thereto.

In such an antenna device, the radiating members operated by the switching module are preferably radar radiating members scanning an angular range of ± 30 degrees.

In addition, the radiating members operated by the switching module scan three directions spaced 120 degrees apart.

In addition, in the first scan operation of the switching module, the radiating members scan an angular range of ± 30 degrees in three directions spaced 120 degrees apart, and in the other three directions spaced 120 degrees apart in the second scan operation. The angle range of ± 30 degrees can be scanned.

The antenna device configured as described above has the advantage that the radiating members are arranged in a cylindrical shape, so that the entire range of 360 degrees can be scanned even if the antenna device does not rotate by itself, thereby making it easy to downsize. Thus, in protecting specific areas or major facilities, it is easy to detect the location of an unmanned aerial vehicle, an unmanned aerial vehicle, a mortar, a cannon, a artillery, an individual portable heavy weapon, etc. while minimizing the exposure to the outside. In addition, since the rotation of the antenna device is unnecessary, the configuration of the antenna device is simplified, and the electrical connection structure in the rotating structure is unnecessary, so that noise and additional connection loss can be prevented. In addition, omnidirectional scanning is possible, even at rest, reducing the public's attention, thereby reducing the risk of exposure.

1 is a perspective view showing an antenna device of a cylindrical arrangement according to a preferred embodiment of the present invention;
2 is a perspective view illustrating a structure of a radiator of the antenna device illustrated in FIG. 1;
3 is a flow chart for explaining the operation of the antenna device shown in FIG.
4 is a view for explaining the operation of the antenna device shown in FIG.
5 is a flowchart illustrating an operation of an antenna device according to another exemplary embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, if it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a perspective view showing the antenna device 100 of a cylindrical arrangement according to a preferred embodiment of the present invention, Figure 2 is a perspective view showing the structure of the radiating portion 103 of the antenna device 100 shown in FIG. 1 and 2, the antenna device 100 of the cylindrical arrangement according to the preferred embodiment of the present invention includes a radome 101 mounted on the cradle 102, the radome 101 in the The radiation part 103 is provided. The radiating part 103 is arranged in a plurality of radiating members 131 to form a cylindrical shape, it is possible to scan the 360 degree angle range by the electrical switching operation even if not rotated. As the radiating part 103 is formed in a cylindrical shape, the radome 101 may also be formed in a cylindrical shape.

2, the radiation unit 103 includes a switching module 137, a radiation member 131, and a transmission / reception module unit 135.

The switching module 137 is used to select a radiation member to perform a transmission / reception operation among the plurality of radiation members 131 installed in the antenna device 100. In the antenna device 100 according to the present embodiment, four switching modules 137 are installed and connected to nine transmission / reception module units 135, respectively. Let's go. In this case, some of the transmit / receive module units 135 may be connected to one switching module 137, and some of the transmit / receive module units 135 may be connected to two switching modules 137. This will be described in more detail below.

The radiation member 131 is formed by a plurality of antenna elements 133 are arranged along the longitudinal direction, and a plurality of the radiation members 131 are arranged along the circumferential direction to form a cylindrical shape. Radiating unit 103 configured as described above is accommodated in the radome 101 is protected from the external environment. In the present embodiment, the antenna elements 133 are configured as dipole antennas, and the eight antenna elements 133 are arranged along the length direction to constitute the radiation member 131. In addition, the 24 radiation members 131 are arranged along the circumferential direction to form a cylindrical shape.

The transmit / receive module unit 135 is a plurality of transmit / receive modules each coupled to the radiating member 131, and more specifically, the antenna element 133 to control phase and amplitude of each of the antenna element 133. One transmission / reception module unit 135 is combined with one radiation member 131. In this case, the transmission / reception module unit 135 is connected to the switching module 137 and controlled by the switching module 137. The switching module 137 selects and operates some of the nine radiation members 131 and the transmission / reception module units 135 connected thereto, specifically, six radiation members and transmission / reception module units. Each direction scans an angle range of ± 22.5 degrees. As mentioned above, in the present embodiment, four switching modules 137 are disposed, and each of the switching modules 137 is provided through the nine radiation members (9) through the nine transmission / reception module units 135. 131).

On the other hand, since the radiation member 131 directly radiates or receives a radio signal, the radiation member 131 is positioned at the outermost side of the cylindrical shape, and the transmission / reception module 135 is positioned at the inside thereof. The switching module 137 may be located further inside the transmission / reception module unit 135 in the cylindrical shape formed by the radiation members 131.

At this time, the three radiating members 131 and the three transmitting and receiving module 135 are set as a basic arrangement, and the eight radiating members 131 and the transmitting and receiving module 135 are in a basic arrangement. . In addition, the switching module 137 is connected to the three basic arrangements, where two basic arrangements operate simultaneously by one switching operation. That is, according to one operation of the switching module 137, six of the radiation members 131 and the transmission / reception module unit 135, that is, two basic arrangements may be operated at 90 degree angle intervals. Each of the four directions is scanned by an angle range of ± 22.5 degrees.

Accordingly, a quadrant beam that scans an angle range of ± 22.5 degrees may be operated under the control of the switching module 137.

Referring to FIG. 4A, in the first scan operation, the switching modules 137 select the six radiation members 131 in four directions, respectively, at ± 22.5 degrees and a total of 180 degrees at regular intervals. Scanning the angular range, and as shown in FIG. 4B, in the second scan operation, the switching modules 137 are each six radiating members in four directions not scanned in the first scan operation. 131 to operate. In this case, the scan angle range in each direction is ± 22.5 degrees, and the total 180 degree angle range is scanned. As a result, all the radiating members 131 operate regardless of the switching operation of the switching module 137, but the scan direction thereof depends on the switching operation of the switching module 137, and each of 180 degrees is performed by two switching operations. By scanning the angular range, scanning in all directions is possible.

For convenience, the first, second, third, fourth, fifth, sixth, seventh, and eighth arrangements, which consist of a combination of the three radiating elements 131 and each transmitting / receiving module unit 135, are arranged. In this case, the first switching module is connected to the first, second and third arrays to operate one of the first and third arrangements together with the second arrangement, and the second switching module is connected to the third arrangement. , Fourth and fifth arrays, the third switching module is connected to the fifth, sixth and seventh arrays, and the fourth switching module is connected to the seventh, eighth and first arrays.

As described above, the combination of the radiating elements 131 and the transmitting / receiving module unit 135 operated by each switching module 137 may be summarized in Table 1 below.

First scan operation (FIG. 4A) Second scan operation (FIG. 4B) First switching module First array and second array Second array and third array Second switching module Third array and fourth array Fourth array and fifth array Third switching module 5th array and 6th array 6th array and 7th array Fourth switching module 7th array and 8th array 8th array and 1st array
Remarks Arrays operated by each switching module scan each of the four directions by ± 22.5 degree angles at 90 degree intervals
The base array combination in the second scan operation scans the remaining angle ranges not scanned by the base array combination in the first scan operation.

Using the four-segment beam, scan the angle range of ± 22.5 degrees in each of four directions and 180 degrees of angle range in the first scan, and scan the remaining angle ranges in the other four directions not scanned in the initial scan operation. The scan time can be reduced to a quarter of the level compared to conventional radar antennas that scan a 360 degree angle range while rotating a single planar antenna that scans the range, ie the ± 22.5 degree angle range.

As a result, the antenna device 100 can scan the 360 degree angle range by an electrical switching operation even if the radome 101 or the radiator 103 is not rotated, thereby reducing the scan time, and the 24 radiations Since the beamwidth of each of the elements 131 is easy to adjust, it can have more degrees of freedom when compared to a structure for rotating a single planar antenna.

Referring to FIG. 3, the radiator 103 is connected to the signal generator 141 and the multi-channel receiver 143, respectively, to radiate radio signals provided from the signal generator 141. The reflected radio signal is transmitted to the multi-channel receiver 143. The radio signal received by the multi-channel receiver 143 is processed according to an algorithm previously input by the signal processor 145 to display the position of the target through the screen display of the controller.

5 is a flowchart illustrating an operation of an antenna device according to another exemplary embodiment of the present invention. The antenna device according to the present embodiment is the same as the previous embodiment in that the radiating member, the transmitting / receiving module unit, and the switching module are configured, but there is a difference in that the basic arrangement consisting of four radiating members and the transmitting / receiving module unit is set. In addition, the antenna device is configured in these six basic arrangements, and only three switching modules control the radiating members and the transmission / reception module. Therefore, in describing the present embodiment in detail, it is noted that the same reference numerals in the drawings or the same reference numerals for the components that can be easily understood through the components of the preceding embodiment.

As mentioned above, the antenna device 100 of the cylindrical arrangement according to the preferred embodiment of the present invention includes the three switching modules 137, and the radiating members 131 and the transmission / reception module unit 135 are 24 pieces each, and the four radiating members and the transmission and reception module are combined to form a basic arrangement. The switching module 137 is connected to three basic arrays, respectively, and operates the two basic arrays in one switching operation.

In this case, the radiating members 131 constituting each basic arrangement scan a angular range of ± 30 degrees, and the switching modules 137 each have two basic arrangements, that is, eight radiating members in one switching operation. It will work. As a result, in the antenna device 100 according to the present exemplary embodiment, in the first switching operation of the switching modules 137, all 24 radiating members 131 operate, but ± 30 degrees in each of three directions at predetermined angle intervals. The angle range, a total of 180 degree angle ranges will be scanned. In the second switching operation of the switching modules 137, all 24 of the radiating members 131 operate, but scan the angle range of ± 30 degrees in each of the three directions not scanned in the first switching operation. Thus, scanning in all directions is possible twice.

According to the antenna device of the previous embodiment, the scan time can be reduced to a quarter level when compared to the case of using a single plane antenna that scans the same angular range by scanning the omnidirectional direction twice using a 4-split beam. I mentioned. Since the antenna device according to the present embodiment scans the omnidirectional direction twice using a three split beam, the scanning time is compared with using a single plane antenna that scans the same angular range (± 30 degrees angular range). Is reduced to 1/3.

For convenience, when the basic arrangement consisting of the combination of the four radiating elements 131 and each transmitting and receiving module 135 is classified as a first, second, third, fourth, fifth, and sixth arrangement, The first switching module is connected to the first, second and third arrangements to operate one of the first and third arrangements together with the second arrangement, and the second switching module is connected to the third, fourth and third arrangements. And a third said switching module is connected to the fifth, sixth and first arrays.

The combination of the radiating elements 131 and the transmitting / receiving module 135 operating by radiating a three-split beam by the three switching modules 137 as described above may be summarized in the following [Table 2].

First scan operation Second scan operation First switching module First array and second array Second array and third array Second switching module Third array and fourth array Fourth array and fifth array Third switching module 5th array and 6th array 6th array and 1st array
Remarks The array operated by each switching module scans each of the three directions by ± 30 degree angle range in 120 degree intervals.
The base array combination in the second scan operation scans the remaining angle ranges not scanned by the base array combination in the first scan operation.

In the foregoing detailed description of the present invention, specific embodiments have been described. However, it will be apparent to those skilled in the art that various modifications can be made without departing from the scope of the present invention.

100: antenna unit 101: radome
102: holder 103: radiator
131: radiation member 135: transmission and reception module unit
137: switching module

Claims (14)

In the antenna device,
Switching module;
A radiation member in which a plurality of antenna elements are arranged along the longitudinal direction; And
It includes a transmission and reception module unit coupled to the radiation member,
A plurality of the radiation member is arranged along the circumferential direction to form a cylindrical shape, the switching module is coupled to the transmission and reception module to set the radiation member to perform the transmission and reception of the radiation member,
1) Radiating members performing a transmission / reception operation in a first switching operation scan a range of ± 22.5 degrees in four directions, and radiating members performing a transmission / reception operation in a second switching operation scan in a first switching operation. Scan a range of ± 22.5 degrees in each of the four undefined directions, or
2) radiating members performing a transmission / reception operation in the first switching operation scan a range of ± 30 degrees in three directions, and radiating members performing a transmission / reception operation in the second switching operation scan in the first switching operation. Antenna array for a radar in a cylindrical arrangement, characterized in that each scans a range of ± 30 degrees in three directions.
The antenna device of claim 1, wherein the radiating member comprises an array of eight antenna elements.
The cylindrical antenna array radar device according to claim 1, wherein in the cylindrical shape formed by the radiating members, the transmitting / receiving module part is located inside, and the radiating members are located on the outer peripheral surface side of the cylindrical shape.
The antenna device of claim 3, wherein the switching module is positioned further inward than the transmission / reception module unit in a cylindrical shape formed by the radiating members.
The cylindrical radar antenna according to any one of claims 1 to 4, wherein the 24 radiating members are arranged along the circumferential direction, and the 24 transmitting and receiving module parts are coupled to each of the radiating members. Device.
6. The antenna device according to claim 5, wherein four switching modules are disposed, and each switching module is coupled to nine transmission / reception module units.
7. The antenna arrangement according to claim 6, wherein each of the switching modules operates the radiating members coupled to six selected transmit / receive module portions of the nine transmit / receive module portions coupled thereto.
8. The antenna arrangement according to claim 7, wherein the radiating members operated by the switching module scan an angular range of ± 22.5 degrees each in four directions spaced 90 degrees apart.
delete The antenna device of claim 1, wherein the switching module, the radiation member, and the transmission / reception module unit are accommodated in a cylindrical radome.
6. The antenna apparatus according to claim 5, wherein three switching modules are disposed, and each switching module is coupled with twelve transmission / reception module units.
12. The antenna arrangement according to claim 11, wherein each said switching module operates said radiating members coupled to eight selected transmit / receive module portions of twelve transmit / receive module portions coupled thereto.
13. The antenna arrangement according to claim 12, wherein the radiating members operated by the switching module scan an angular range of ± 30 degrees in three directions spaced 120 degrees apart.
delete

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