CN104916904A - Broadband antenna - Google Patents

Abstract

A broadband antenna. The broadband antenna is used for transceiving at least one radio signal, and comprises: a first radiating metal part including a first triangular metal sheet and a second triangular metal sheet; a metal reflection module, including multiple metal reflection components, which can be connected with each other to make the metal reflection module form a cavity structure and surround the first radiation metal part, for reflecting the at least one radio signal to increase the gain value of the broadband antenna; and a supporting member for fixing the relative position between the first triangular metal sheet and the second triangular metal sheet of the first radiation metal part, fixing the first radiation metal part in the cavity structure of the metal reflection module, and electrically isolating the metal reflection module from the first radiation metal part. The invention has better bandwidth, can increase the gain value of the broadband antenna, and can be manufactured by simple processing and conveniently stored or transported.

Description

broadband antenna

technical field

The invention relates to a broadband antenna, in particular to a broadband antenna with high gain, working bandwidth and easy storage or transportation.

Background technique

Electronic products with wireless communication function transmit or receive radio waves through antennas to transmit or exchange radio signals, and then access wireless networks. Therefore, in order to allow users to access the wireless communication network more conveniently, the bandwidth of the ideal antenna should be increased as much as possible within the allowable range, and at the same time provide high gain.

In order to increase the gain, the known technology has provided a variety of techniques to increase the reflection efficiency of the antenna by using additional structures, but this will increase the overall volume of the antenna, which is not only expensive and heavy, but also causes inconvenience in installation. Therefore, how to design a structure A broadband antenna that is simple to reduce manufacturing and transportation costs is the goal that related industries need to strive for.

Therefore, it is necessary to provide a broadband antenna to solve the above problems.

Contents of the invention

Therefore, the present invention mainly provides a broadband antenna, which has high gain, working bandwidth and is convenient for storage or transportation.

The invention discloses a broadband antenna, which is used to send and receive at least one radio signal. The broadband antenna includes: a first radiating metal part, and the first radiating metal part includes a first triangular metal piece and a second triangular metal sheet; a metal reflection module, the metal reflection module includes a plurality of metal reflection components, the plurality of metal reflection components can be connected to each other, so that the metal reflection module roughly forms a cavity structure and surrounds the first radiating metal part, with to reflect the at least one radio signal, so as to increase the gain value of the broadband antenna; and a support member, the support member is used to fix the first triangular metal piece and the second triangular metal piece of the first radiating metal part In relative position, the first radiating metal part is fixed in the cavity structure of the metal reflective module, and the metal reflective module and the first radiating metal part are electrically isolated.

The present invention utilizes the triangular metal sheet of the radiating metal part to have better bandwidth; and, after the assembly is completed, the metal reflection module of the cavity structure is arranged around the radiating metal part to effectively reflect radio signals, so as to increase the gain value of the broadband antenna; After disassembly, the components of the broadband antenna can be stored separately. Since the metal reflector module is roughly composed of metal reflector components with a flat plate structure, it can be made through simple processing and can be conveniently stored or transported; in addition, the metal reflector The components can respectively have multiple grids, thus reducing the weight and wind resistance of the broadband antenna.

Description of drawings

FIG. 1A is an exploded schematic diagram of a broadband antenna according to an embodiment of the present invention.

FIG. 1B is a schematic isometric perspective view of the broadband antenna in FIG. 1A after being assembled.

FIG. 1C is a schematic top view of the broadband antenna shown in FIG. 1B .

FIG. 1D is a schematic cross-sectional view of the broadband antenna shown in FIG. 1B .

FIG. 1E is a diagram of antenna resonance simulation results of the broadband antenna in FIG. 1B .

FIG. 2A is an exploded schematic diagram of a broadband antenna according to an embodiment of the present invention.

FIG. 2B is a schematic isometric perspective view of the broadband antenna in FIG. 2A after being assembled.

FIG. 2C is a graph of antenna resonance simulation results of the broadband antenna in FIG. 2B .

FIG. 3A is an exploded schematic diagram of a broadband antenna according to an embodiment of the present invention.

FIG. 3B is a schematic isometric perspective view of the broadband antenna in FIG. 3A after it has been assembled.

FIG. 3C is a graph of antenna resonance simulation results of the broadband antenna in FIG. 3B .

FIG. 4A is a schematic diagram of an isometric view of a broadband antenna according to an embodiment of the present invention after it has been assembled.

FIG. 4B is a graph of antenna resonance simulation results of the broadband antenna in FIG. 4A .

FIG. 4C is a diagram showing the variation of the antenna gain of the broadband antenna in FIG. 4A at 500 MHz with the angle of the radiation pattern.

FIG. 4D is a diagram showing the variation of the antenna gain of the broadband antenna in FIG. 4A at 800 MHz with the angle of the radiation pattern.

FIG. 5 is a partial schematic diagram of a broadband antenna according to an embodiment of the present invention.

FIG. 6 is a partial schematic diagram of a broadband antenna according to an embodiment of the present invention.

FIG. 7 is a partial schematic diagram of a broadband antenna according to an embodiment of the present invention.

FIG. 8 is a partial schematic diagram of a broadband antenna according to an embodiment of the present invention.

FIG. 9 is a schematic diagram of a broadband antenna according to an embodiment of the present invention.

Description of main component symbols:

10, 20, 30, 40, 50, 60, 70, 80, 90 Broadband Antenna

100, 900 Radiation Metal Department

102, 104, 902, 904 Triangular metal sheet

110, 210, 310, 410 Metal reflection module

111～115, 211～215, 311～314, 411～415 Metal reflective components

1111～1154, 2111～2145, 2151a～2154d, 3111a～3144b connectors

120 Supports

G1 Clearance

D1 Spacing

215a～215d, 311a～314b Metal reflector

550a, 550b Locking components

650 Pivot Assembly

Detailed ways

Please refer to FIGS. 1A to 1D. FIG. 1A is an exploded schematic diagram of a broadband antenna 10 according to an embodiment of the present invention. FIG. 1B is a schematic diagram of an isometric perspective after the broadband antenna 10 is assembled. FIG. 1C is a top view of the broadband antenna 10 after it is assembled. Schematic diagram, FIG. 1D is a schematic cross-sectional view along the section line AA' of FIG. 1C. As shown in FIG. 1A , the broadband antenna 10 includes a radiating metal part 100 , a metal reflection module 110 and a support 120 . The radiating metal part 100 includes triangular metal pieces 102 and 104. In this embodiment, the triangular metal pieces 102 and 104 are isosceles triangular metal pieces, but not limited thereto. Among them, the core wire of the transmission line used to feed the signal can be connected to a triangular metal piece (such as the triangular metal piece 102 ) of the radiating metal part 100 , and the metal braided transmission line of the transmission line can be connected to another triangular metal piece of the radiating metal part 100 . sheet (such as a triangular metal sheet 104 ), wherein the metal braided transmission line can be electrically connected to the metal reflection module 110 , but not limited thereto. The supporting member 120 is used to fix the relative position between the triangular metal pieces 102 and 104 , so that the bottom of the triangular metal piece 102 and the bottom of the triangular metal piece 104 are parallel to each other, and the radiating metal portion 100 is in a rhombus shape. Moreover, the support member 120 fixes the radiating metal part 100 in the cavity structure of the assembled metal reflective module 110, and makes the metal reflective module 110 and the radiating metal part 100 separated by a gap G1 as shown in FIG. Sexual isolation.

In detail, the metal reflector module 110 includes metal reflector components 111, 112, 113, 114, 115, wherein the metal reflector components 111, 112, 113, 114 are all roughly rectangular, and are arranged around the four corners respectively. There are connectors, respectively marked as 1111-1114, 1121-1124, 1131-1134, and 1141-1144; and the metal reflection component 115 is roughly square, and connectors 1151-1154 are arranged around the four corners. As shown in FIG. 1A and FIG. 1B , the connectors on the adjacent corners of the assembled metal reflection components 111-115 correspond to each other, that is, the connector 1111 corresponds to the connectors 1121 and 1151, and the connector 1112 corresponds to the connector. pieces 1124, and so on. Thus, by securing connector 1111 to connectors 1121, 1151, connector 1112 to connector 1124, connector 1122 to connectors 1132, 1152, connector 1123 to connector 1131, The connector 1133 is fixed to the connectors 1143, 1153, the connector 1134 is fixed to the connector 1142, the connector 1144 is fixed to the connectors 1114, 1154, and the connector 1141 is fixed to the connector 1113, so that the metal reflection assembly 111～ 115 are electrically connected to each other, so that the metal reflection modules 110 can be connected to each other to surround the radiating metal part 100 . In other words, the metal reflection components 111 - 115 can form a cavity structure through the connecting pieces 1111 - 1154 to reflect and radiate the radio signal from the metal part 100 and increase the gain value of the broadband antenna 10 . It should be noted that there is a distance D1 between two adjacent metal reflective components 111 - 115 shown in FIGS. 1B-1D , and the distance D1 is preferably 0 to enhance the reflection effect. At the same time, since the radiating metal part 100 and the metal reflective components 111 - 115 of the metal reflective module 110 are generally flat plate structures, they can be manufactured through simple processing, and can be easily stored or transported after being disassembled. It is worth noting that the connectors 1111-1154 are embodiments of the present invention, but the present invention is not limited thereto, and the number of connectors can be appropriately increased or decreased according to different design considerations. For example, the metal reflection component 111 can only be Connecting pieces 1111 , 1113 , 1114 are arranged around the three corners, and are fixed to the corners of the metal reflecting component 111 without connecting pieces only through the connecting piece 1124 of the metal reflecting component 112 . Alternatively, the metal reflective component 111 includes other connecting components in addition to the connecting components 1111 - 1114 , so as to strengthen the fixing between the metal reflective component 111 and the metal reflective components 112 , 114 , 115 .

In short, in this embodiment, the radiating metal part 100 is used to transmit and receive wireless signals, and because the triangular metal pieces 102 and 104 are triangular, they have a better bandwidth, and then the metal reflection module 110 with a cavity structure is arranged around the radiating metal part 100 However, radio signals can be effectively reflected to increase the gain value of the broadband antenna 10 . Wherein, the metal reflector module 110 is roughly composed of metal reflector components 111 - 115 in a plate structure, so it can be manufactured through simple processing, and can be conveniently stored or transported after being disassembled.

Whether the broadband antenna 10 meets the system requirements can be further judged through simulation. For example, if the assembled broadband antenna 10 has a length and width of 500 millimeters (mm), a height of 163 millimeters, and the distance D1 of the metal reflection components 111-115 is 0.5 millimeters, then the antenna resonance simulation results are shown in Fig. As shown in Figure 1E. It can be seen from FIG. 1E that, taking -10dB as a standard, the resonance bandwidth of the broadband antenna 10 can simultaneously cover an ultra high frequency (UHF) frequency band. On the other hand, Table 1 is a field simulation statistical table of the broadband antenna 10 , and it can be known from Table 1 that the broadband antenna 10 has high directivity.

(Table I)

frequency Maximum gain value 3dB bandwidth Front and rear field ratio Co-polarization to Orthogonal Polarization Ratio 470MHz 8.7dBi 72deg (degrees) 25.6dB 48.5dB 500MHz 9.0dBi 70deg 27.5dB 44.7dB 600MHz 10.0dBi 60deg 42.3dB 45.5dB 700MHz 11.4dBi 49 degrees 18.3dB 47.6dB 800MHz 11.4dBi 43 degrees 20.3dB 51.5dB 862MHz 12.0dBi 38 degrees 23.6dB 36.6dB

In order to further reduce the maximum area, length and width of a single piece after the broadband antenna 10 is disassembled, please refer to FIGS. 2A to 2C. FIG. 2A is an exploded schematic diagram of a broadband antenna 20 according to an embodiment of the present invention, and FIG. The isometric view schematic diagram of the wideband antenna 20 after the assembly is completed. As shown in FIG. 2A , the architecture of the broadband antenna 20 is roughly similar to that of the broadband antenna 10 , but the difference lies in that the metal reflection component 215 of the metal reflection module 210 of the broadband antenna 20 includes metal reflection plates 215 a - 215 d. And, the connectors 2151c, 2152d, 2153a, and 2154b of the metal reflectors 215a-215d are fixed to each other, and the connectors 2152a, 2154a of the metal reflector 215a are respectively fixed to the connector 2151b of the metal reflector 215b and the connector 2151b of the metal reflector 215d. Connector 2151d, and the connectors 2152c, 2154c of the metal reflector 215c are fixed to the connector 2153b of the metal reflector 215b, the connector 2153d of the metal reflector 215d, and the metal reflectors 215a-215d can be combined into a metal reflector assembly 215 . In addition, the metal reflection assembly 215 can be further fixed to the connection pieces 2111, 2115, 2114 of the metal reflection assembly 211 through the connection pieces 2151a, 2154a, 2151d, 2154d, and fixed to the connection pieces of the metal reflection assembly 212 through the connection pieces 2151a, 2152a, 2151b, 2152b. 2121, 2125, 2122, fixed to the metal reflector assembly 213 connectors 2132, 2135, 2133 through the connectors 2152b, 2153b, 2152c, 2153c, and fixed to the metal reflector assembly 214 connector 2143 through the connectors 2153c, 2154c, 2153d, 2154d , 2145, 2144. 2C is a diagram of the antenna resonance simulation results of the broadband antenna 20, wherein the length and width of the broadband antenna 20 are set to 500 mm, the height is set to 163 mm, and the metal reflection components 211-214 and the metal reflection plates 215a-215d The spacing D1 is set to 0.5 mm. It can be seen from FIG. 2C that, taking -10dB as a standard, the resonance bandwidth of the broadband antenna 20 can simultaneously cover the UHF frequency band. On the other hand, Table 2 is a field simulation statistics table of the wideband antenna 20 . It can be known from Table 2 that the wideband antenna 20 has high directivity. Moreover, since the metal reflection assembly 215 can be divided into four small pieces of metal reflection plates, the maximum area, length and width of a single piece after disassembly can be reduced to facilitate storage and transportation. It should be noted that the metal reflector 215 can also be formed by combining two or more metal reflectors to further increase the convenience of storage and transportation.

(Table II)

frequency Maximum gain value 3dB bandwidth Front and rear field ratio Co-polarization to Orthogonal Polarization Ratio 470MHz 8.7dBi 7ldeg 17.2dB 31.3dB 500MHz 9. ldBi 68 degrees 16.4dB 25.8dB 600MHz 9. ldBi 59 degrees 10.1dB 17.3dB 700MHz 10.7dBi 53 degrees 15.5dB 28.7dB 800MHz 11.4dBi 43 degrees 14.6dB 42.6dB 862MHz 12.2dBi 38 degrees 19.4dB 44.3dB

In order to further reduce the maximum area, length and width of a single piece after the broadband antenna 20 is disassembled, please refer to FIGS. 3A to 3C. FIG. A schematic diagram of an isometric perspective after assembly, and FIG. 3C is a diagram of the antenna resonance simulation results of the broadband antenna 30 . As shown in FIG. 3A , the structure of the broadband antenna 30 is roughly similar to that of the broadband antenna 20, but the difference is that a metal reflection component 311 of a metal reflection module 310 of the broadband antenna 30 includes metal reflection plates 311a, 311b, a metal The reflective component 312 includes metal reflective plates 312a, 312b, a metal reflective component 313 includes metal reflective plates 313a, 313b, and a metal reflective component 314 includes metal reflective plates 314a, 314b. Moreover, the metal reflectors 311a, 311b can be combined into a metal reflector assembly 311 by fixing the connectors 3111a, 3112a of the metal reflector 311a to the connectors 3114b, 3113b of the metal reflector 311b. The metal reflectors 312a, 312b can be combined into a metal reflector assembly 312 by fixing the connectors 3122a, 3123a of the metal reflector 312a to the connectors 3121b, 3124b of the metal reflector 312b. The metal reflectors 313a, 313b can be combined into a metal reflector assembly 313 by fixing the connectors 3133a, 3134a of the metal reflector 313a to the connectors 3132b, 3131b of the metal reflector 313b. The metal reflectors 314a, 314b can be combined into a metal reflector assembly 314 by fixing the connectors 3141a, 3144a of the metal reflector 314a to the connectors 3142b, 3143b of the metal reflector 314b. If the assembled broadband antenna 30 has a length and width of 500 mm and a height of 163 mm, and the distance D1 between the metal reflectors 311a-314b, 215a-215d is 0.5 mm, then the antenna resonance simulation result of the broadband antenna 30 is as follows: Figure 3C. Wherein, taking -10dB as a standard, the resonance bandwidth of the broadband antenna 30 can simultaneously cover the UHF frequency band. On the other hand, Table 3 is a field simulation statistical table of the broadband antenna 30 , and it can be known from Table 3 that the broadband antenna 30 has high directivity. Moreover, since the metal reflection components 311-314 can be divided into two small pieces of metal reflection plates, the maximum area, length and width of a single piece after disassembly can be reduced to facilitate storage and transportation. It is worth noting that the metal reflective components 311-314 can also be formed by combining multiple pieces of metal reflective plates, so as to further increase the convenience of storage and transportation.

(Table 3)

frequency Maximum gain value 3dB bandwidth Front and rear field ratio Co-polarization to Orthogonal Polarization Ratio 470MHz 8.8dBi 70deg 17.2dB 40.2dB 500MHz 9. ldBi 68 degrees 17.3dB 47.2dB 600MHz 8.8dBi 57 degrees 8.1dB 17.5dB 700MHz 10.7dBi 53 degrees 15.8dB 32.4dB 800MHz 11.4dBi 44 degrees 14.4dB 42.7dB 862MHz 12. ldBi 38 degrees 19.5dB 40.4dB

From the above, it can be known that the metal reflective components used in the embodiment of the present invention can be composed of multiple metal reflective plates, and then two adjacent metal reflective components are electrically connected through connectors, so that the metal reflective modules form a complete cavity The structure can effectively reflect radio signals to increase the gain value of the broadband antenna. However, when increasing the size of the metal reflector module, although the gain value of the broadband antenna can be increased, it will also increase the weight of the broadband antenna or the wind resistance when it is installed outdoors. Therefore, the metal reflector module can be properly adjusted according to the system requirements. geometry structure. Please refer to FIG. 4A . FIG. 4A is a schematic isometric perspective view of a broadband antenna 40 according to an embodiment of the present invention after assembly. As shown in FIG. 4A , the architecture of the broadband antenna 40 is roughly similar to that of the broadband antenna 10 , but the difference lies in that the metal reflection components 411 - 415 of the broadband antenna 40 have multiple grids. Fig. 4B is the antenna resonance simulation result diagram of the broadband antenna 40, Fig. 4C is a variation diagram of the antenna gain of the broadband antenna 40 with the radiation field angle at 500 MHz, and Fig. 4D is the variation of the antenna gain of the broadband antenna 40 with the radiation field angle at 800 MHz Change graph. Among them, the length and width of the broadband antenna 40 after assembly are set to 500 mm, the height is set to 163 mm, the distance D1 between the metal reflection components 411-415 is set to 0.5 mm, and the metal reflection components 411-414 They are respectively braided by 6 horizontal metal wires and 16 vertical metal wires, and the metal reflection component 415 is braided by 16 horizontal metal wires and 16 vertical metal wires. It can be seen from FIG. 4B that, taking -10dB as a standard, the resonance bandwidth of the broadband antenna 40 can simultaneously cover the UHF frequency band. On the other hand, Table 4 is a field simulation statistical table of the wideband antenna 40 . It can be known from Table 4 that the wideband antenna 40 has high directivity. Moreover, since the metal reflection components 411 - 415 each have a plurality of grids, the weight and wind resistance of the broadband antenna 40 can be further reduced.

(Table 4)

frequency Maximum gain value 3dB bandwidth Front and rear field ratio Co-polarization to Orthogonal Polarization Ratio 470MHz 8.6dBi 73 degrees 31.0dB 44.6dB 500MHz 8.8dBi 72 degrees 33.5dB 43.2dB 600MHz 10.0dBi 60deg 35.9dB 41.5dB 700MHz 11.0dBi 50deg 18.6dB 48.0dB 800MHz 11.0dBi 44 degrees 20.9dB 45.9dB 862MHz 11.2dBi 42 degrees 21.0dB 34.6dB

In short, the grid-shaped metal reflector module 410 is roughly composed of plate-shaped metal reflector components 411 - 415 , so it is not only easy to manufacture, but also can be conveniently stored or transported after being disassembled. Moreover, since the metal reflection components 411 - 415 respectively have a plurality of grids, the weight and wind resistance of the broadband antenna can be effectively reduced.

It should be noted that the broadband antennas 10-40 are embodiments of the present invention, and those skilled in the art should be able to make various changes accordingly. For example, the gap G1 is related to the operating frequency of the broadband antenna. Generally speaking, when the gap G1 is roughly equal to about 1/4 wavelength of the radio signal, the wideband antenna can achieve the highest gain value. The supporting member 120 is made of an insulating material, such as wood, glass, rubber, etc., and is not limited thereto, as long as the radiating metal part 100 and the metal reflection module are not electrically connected to each other. On the other hand, the grid size of the metal reflective elements can be properly adjusted according to system requirements, and each metal reflective element can have different grid sizes. Moreover, the grids of the metal reflection elements 411 - 414 shown in FIG. 4A are square, but the present invention is not limited thereto, and may be triangular, rectangular, rhombus, hexagonal or other suitable shapes. The side length of the metal reflection component can be adjusted according to the needs of the system, and it is not a certain value. Alternatively, the metal reflection module is not limited to being assembled into a cuboid, but can be assembled into other types of cavity structures, such as spherical, polyhedral or irregular three-dimensional structures. And it can be conveniently stored or transported by proper disassembly or folding.

The connectors of the broadband antenna can be electrically connected by welding, such as welding the connectors of the metal reflectors 215 a - 215 d in FIGS. 2A to 2C to form the metal reflector 215 . However, corresponding to different disassembly or folding methods, the fixing method of the support member and the metal reflection module and the structure of the connecting member can also be properly designed. For example, please refer to FIG. 5 , which is a partial schematic diagram of a broadband antenna 50 according to an embodiment of the present invention. The structure of the broadband antenna 50 is roughly similar to that of the broadband antenna 40, wherein the connecting pieces (such as 1131, 1123) on the adjacent corners of the metal reflection component of the broadband antenna 50 can have an opening respectively, and can be connected by the connecting piece. The locking components (such as 550a, 550b) are fixed, so the metal reflection modules can be assembled into a cavity structure, and the electrical connection between the metal reflection components can be ensured, and the broadband antenna 50 can be disassembled for storage or transportation. It is worth noting that the locking component (such as 550b) can be fixed on the connector (such as 1131) of the metal reflection component (such as 413), or the locking component (such as 550a) can be semi-fixed on the metal reflection component (such as 412 ) on the connecting piece (such as 1123), but there can be relative rotation. In addition, please refer to FIG. 6 , which is a partial schematic diagram of a broadband antenna 60 according to an embodiment of the present invention. The structure of the broadband antenna 60 is roughly similar to that of the broadband antenna 40, wherein, the connecting pieces (such as 1131, 1123) on the adjacent corners of the metal reflection component of the broadband antenna 60 can respectively have a shaft hole, and can be connected by the connecting piece. A pivot component (such as 650) is fixed as a pivot, so the metal reflection module can be assembled into a cavity structure, and the electrical connection between the metal reflection components can be ensured, and the broadband antenna 60 can be disassembled for storage or transportation . It is worth noting that the pivot assembly (such as 650) can be semi-fixed on the connecting piece (such as 1131) of the metal reflection component (such as 413) or on the connection piece (such as 1123) of the metal reflection component (such as 412), and can There is relative rotation. Please refer to FIG. 7 , which is a partial schematic diagram of a broadband antenna 70 according to an embodiment of the present invention. The structure of the broadband antenna 70 is roughly similar to that of the broadband antenna 40, wherein the connecting parts (such as 1131, 1123) on the adjacent corners of the metal reflection component of the broadband antenna 70 can be a slide groove and a raised structure with corresponding dimensions , and the protruding structure can be pushed into the chute to lock the metal reflection component, so the metal reflection module can be assembled into a cavity structure, and the electrical connection between the metal reflection components can be ensured, and the broadband antenna 70 can be disassembled for for storage or transportation.

In addition, the connectors 1111-3144b of the broadband antennas 10-70 are embodiments of the present invention, but the present invention is not limited thereto, and the number of connectors can be appropriately increased or decreased depending on different design considerations such as the structure of the connectors. Please refer to FIG. 8 , which is a partial schematic diagram of a broadband antenna 80 according to an embodiment of the present invention. The structure of the broadband antenna 80 is roughly similar to that of the broadband antenna 40, wherein the connecting piece (such as 1123) in the metal reflection component of the broadband antenna 80 can be a hook, which can be fixed to the longitudinal metal wire (such as WIRE1), therefore, the metal reflection module can be assembled into a cavity structure, and the electrical connection between the metal reflection components can be ensured, and the broadband antenna 80 can be disassembled for storage or transportation. In other words, the metal reflective component (such as 413) can only be provided with connecting pieces around some of the corners, while there are no connecting pieces around some of the corners (such as around the corners adjacent to the vertical metal wire WIRE1), but through corresponding Adjacent connectors (such as 1123 ) fix the top corners of the metal reflective assembly without connectors (such as the top corners adjacent to the vertical metal wire WIRE1 ), so as to assemble the metal reflective module into a cavity structure.

On the other hand, the broadband antenna of the present invention can also be a broadband dual-polarized antenna, please refer to FIG. 9 , which is a schematic diagram of a broadband antenna 90 according to an embodiment of the present invention. The structure of the broadband antenna 90 is roughly similar to that of the broadband antenna 40, but the difference is that, after the assembly is completed, the broadband antenna 90 also includes a radiating metal part 900 located on the radiating metal part 100, and connected to the radiating metal part 100 through the support 120. There is a gap between them and they are not electrically connected to each other, and the isolation of the radiating metal parts 100 and 900 is improved. The radiating metal part 900 includes triangular metal pieces 902, 904. The bases of the triangular metal pieces 902, 904 are parallel to each other, so that the radiating metal part 900 is in the shape of a rhombus. The midline is approximately 90 degrees.

It should be noted that, in FIG. 9, the radiating metal parts 100, 900 of the broadband antenna 90 are parallel to each other, however, the present invention is not limited thereto, and the radiating metal part 900 of the broadband antenna 90 of the present invention can also be directed from the central support 120 to The outer slope is upward, or, the radiating metal part 100 can be inclined outward from the central support 120 to the metal reflector 415; in other words, the radiating metal part 100, 900 of the present invention may not be completely parallel. On the other hand, the radiating metal portion 100 of the broadband antenna 90 of the present invention can be bent upwards with a specific arc, so as to reduce the field value of the radiating metal portion 100 , thereby balancing the field value. Alternatively, the radiating metal part 900 of the broadband antenna 90 of the present invention can be bent toward the metal reflector 415 in a specific arc to reduce the distance between the radiating metal part 900 and the metal reflector 415 and increase the field value of the radiating metal part 900 .

To sum up, the present invention utilizes the triangular metal sheet of the radiating metal portion to have a better bandwidth. Moreover, after the assembly is completed, the metal reflection module of the cavity structure is arranged around the radiating metal part to effectively reflect radio signals to increase the gain value of the broadband antenna; after disassembly, the components of the broadband antenna can be stored separately. The reflective module is generally composed of metal reflective components with a flat plate structure, so it can be manufactured through simple processing, and can be stored or transported conveniently. In addition, the metal reflection components can respectively have a plurality of grids, so that the weight and wind resistance of the broadband antenna can be reduced.

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the claims of the present invention shall fall within the scope of the present invention.

Claims (11)

1. a broad-band antenna, this broad-band antenna is used for receiving and dispatching at least one radio signal, and this broad-band antenna comprises:

One first radiation metal portion, this first radiation metal portion comprises one first triangle metal sheet and one second triangle metal sheet;

One metallic reflection module, this metallic reflection module comprises multiple metallic reflection assembly, the plurality of metallic reflection assembly can be interconnected, and make this metallic reflection module roughly form a cavity body structure and around this first radiation metal portion, be used for reflecting this at least one radio signal, to increase the yield value of this broad-band antenna; And

One strutting piece, this strutting piece is used for fixing the relative position between this first triangle metal sheet in this first radiation metal portion and this second triangle metal sheet, this the first radiation metal portion is fixed in this cavity body structure of this metallic reflection module, and makes this metallic reflection module and this first radiation metal portion electrical isolation.

2. broad-band antenna as claimed in claim 1, wherein this metallic reflection module comprises:

One first metallic reflection assembly, this first metallic reflection assembly is roughly in a rectangle, and one first drift angle of this first metallic reflection assembly, one second drift angle, one the 3rd drift angle or one the 4th drift angle are provided with at least one connector;

One second metallic reflection assembly, this second metallic reflection assembly is roughly in a rectangle, and one first drift angle of this second metallic reflection assembly, one second drift angle, one the 3rd drift angle or one the 4th drift angle are provided with at least one connector;

One the 3rd metallic reflection assembly, the 3rd metallic reflection assembly is roughly in a rectangle, and one first drift angle of the 3rd metallic reflection assembly, one second drift angle, one the 3rd drift angle or one the 4th drift angle are provided with at least one connector;

One the 4th metallic reflection assembly, the 4th metallic reflection assembly is roughly in a rectangle, and one first drift angle of the 4th metallic reflection assembly, one second drift angle, one the 3rd drift angle or one the 4th drift angle are provided with at least one connector; And

One five metals belongs to reflection subassembly, and this five metals belongs to reflection subassembly roughly in a rectangle, and this five metals belongs to one first drift angle of reflection subassembly, one second drift angle, one the 3rd drift angle or one the 4th drift angle and is provided with at least one connector,

Wherein, those connectors make this first metallic reflection assembly, this second metallic reflection assembly, the 3rd metallic reflection assembly, the 4th metallic reflection assembly and this five metals belong to reflection subassembly can be interconnected to form this cavity body structure, or are separated from each other.

3. broad-band antenna as claimed in claim 1, wherein those connectors are selected from the group be made up of screw, nut, axis hole, pivot, chute, bulge-structure or grab.

4. broad-band antenna as claimed in claim 1, wherein this first metallic reflection assembly has multiple first grid, this the second metallic reflection assembly has multiple second grid, 3rd metallic reflection assembly has multiple 3rd grid, 4th metallic reflection assembly has multiple 4th grid, and this five metals belongs to reflection subassembly has multiple 5th grid.

5. broad-band antenna as claimed in claim 4, wherein the plurality of first grid, the plurality of second grid, the plurality of 3rd grid, the plurality of 4th grid and the plurality of 5th grid are of similar shape and size.

6. broad-band antenna as claimed in claim 2, wherein this five metals belongs to the shape of reflection subassembly for square, and the shape of this first metallic reflection assembly, this second metallic reflection assembly, the 3rd metallic reflection assembly and the 4th metallic reflection assembly is an identical rectangle.

7. broad-band antenna as claimed in claim 1, wherein the shape of this first triangle metal sheet and this second triangle metal sheet is isosceles triangle.

8. broad-band antenna as claimed in claim 1, also comprise one second radiation metal portion, this second radiation metal portion is positioned on this first radiation metal portion, and is formed with a gap between this first radiation metal portion.

9. broad-band antenna as claimed in claim 2, wherein this first metallic reflection assembly, this the second metallic reflection assembly, 3rd metallic reflection assembly, 4th metallic reflection assembly and this five metals belong to reflection subassembly, and at least one of them comprises multiple metallic reflection plate, one first drift angle of at least one metallic reflection plate in the plurality of metallic reflection plate, one second drift angle, one the 3rd drift angle or one the 4th drift angle are provided with at least one connector, those connectors make the plurality of metallic reflection plate be separated from each other, or be interconnected and form this first metallic reflection assembly with correspondence, this the second metallic reflection assembly, 3rd metallic reflection assembly, 4th metallic reflection assembly or this five metals belong to reflection subassembly, or be interconnected to form this cavity body structure.

10. broad-band antenna as claimed in claim 9, wherein those connectors of corresponding the plurality of metallic reflection plate, what this first metallic reflection assembly, this second metallic reflection assembly, the 3rd metallic reflection assembly, the 4th metallic reflection assembly or this five metals belonged to reflection subassembly comprises at least one connector.

11. broad-band antennas as claimed in claim 2, wherein at least one connector of this first drift angle of this first metallic reflection assembly, at least one connector that at least one connector of this first drift angle of this second metallic reflection assembly and this five metals belong to this first drift angle of reflection subassembly is arranged in correspondence with each other, at least one connector of this first drift angle of this second metallic reflection assembly, at least one connector that at least one connector of this first drift angle of the 3rd metallic reflection assembly and this five metals belong to the 3rd drift angle of reflection subassembly is arranged in correspondence with each other, at least one connector of this first drift angle of the 3rd metallic reflection assembly, at least one connector that at least one connector of this first drift angle of the 4th metallic reflection assembly and this five metals belong to the 4th drift angle of reflection subassembly is arranged in correspondence with each other, at least one connector of this second drift angle of this first metallic reflection assembly corresponds at least one connector of the 4th drift angle of this second metallic reflection assembly, at least one connector of the 3rd drift angle of this second metallic reflection assembly corresponds at least one connector of this first drift angle of the 3rd metallic reflection assembly, at least one connector of the 4th drift angle of the 3rd metallic reflection assembly corresponds at least one connector of this second drift angle of the 4th metallic reflection assembly, and at least one connector of this first drift angle of the 4th metallic reflection assembly corresponds at least one connector of the 3rd drift angle of this first metallic reflection assembly.