Antenna for striking unmanned aerial vehicle

Abstract

The utility model relates to the technical field of antennas, in particular to an antenna for striking of an unmanned aerial vehicle, which comprises a shell, a radiation array module, a metal plate and a connector module. The radiation array module comprises a first radiation array, a second radiation array, a third radiation array, a fourth radiation array, a fifth radiation array and a sixth radiation array, and the second radiation array is located in the middle of the metal plate; and the fourth radiation array, the fifth radiation array, the sixth radiation array, the third radiation array and the first radiation array surround the periphery of the second radiation array anticlockwise in sequence. The problems of few frequency bands, insufficient power and poor performance of an existing anti-unmanned aerial vehicle antenna for hitting an unmanned aerial vehicle are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of antennas, in particular to an antenna for attacking unmanned aerial vehicles. Background Art

[0002] At present, drones are becoming increasingly common, and there are more and more drones in real life. As a result, the probability of drones flying into restricted airspace increases. In this case, strike actions must be taken against drones flying into restricted airspace to render them inoperable or force them to land.

[0003] Compared to physical strikes, using drone-targeting antennas uses high-powered signals for interference without causing fatal damage to the surrounding environment or personnel. Furthermore, it can quickly identify and disrupt target drones, resulting in a faster response time. However, with the development of drones and the expansion of their applications, the frequency requirements for anti-drone antennas are no longer limited to a single frequency band, and the demands for strike range and penetration are gradually increasing. Utility Model Content

[0004] In view of the above-mentioned defects, the purpose of the present invention is to propose an antenna for attacking drones, which can solve the problems of the current anti-drone antennas having few frequency bands, insufficient power and poor performance in attacking drones.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] An antenna for drone strike, comprising a housing, a radiation array module, a metal plate, and a connector module, wherein the housing is used to accommodate the radiation array module, the metal plate, and the connector module;

[0007] The radiation array module is fixed to the metal plate, and includes a first radiation array, a second radiation array, a third radiation array, a fourth radiation array, a fifth radiation array, and a sixth radiation array. The second radiation array is located in the middle of the metal plate, and the fourth radiation array, the fifth radiation array, the sixth radiation array, the third radiation array, and the first radiation array are sequentially arranged counterclockwise around the periphery of the second radiation array. The fourth radiation array, the fifth radiation array, and the sixth radiation array are arranged in the same row. A first spacing area is provided between the third radiation array and the first radiation array, and a second spacing area is provided between the third radiation array and the sixth radiation array. The first radiation array is arranged opposite to the third radiation array and the second spacing area.

[0008] The connector module is mounted on the metal plate and is electrically connected to the radiation array module. The connector module includes a plurality of radio frequency coaxial connectors, and the radio frequency coaxial connectors are used to connect the radiation array module to a radio frequency source.

[0009] Furthermore, the fourth radiation array and the fifth radiation array are arranged on the same metal reflective plate, and the metal reflective plate is mounted on the lower left of the plate surface of the metal plate through a supporting column, the first radiation array is located on the left side of the plate surface of the second radiation array, the sixth radiation array is located on the lower right of the plate surface of the metal plate, and the third radiation array is located on the upper right of the plate surface of the second radiation array; the radiation frequency band of the first radiation array is 2400-2500MHz, the radiation frequency band of the second radiation array is 840-930MHz, the radiation frequency band of the third radiation array is 1160-1300MHz, the radiation frequency band of the fourth radiation array is 4900-5350MHz, the radiation frequency band range of the fifth radiation array is 5640-6000MHz, and the radiation range of the sixth radiation array is 1550-1630MHz.

[0010] Furthermore, the first radiating array includes a plurality of first radiating elements, a 2400-2500 MHz feed network, and two first metal reflectors, the two first metal reflectors being arranged opposite each other on the front surface of the metal plate, one on the left and one on the right, and forming a first mounting area on the metal plate; the plurality of first radiating elements are arranged at intervals along a first straight line on the left side of the second radiating array and located within the first mounting area, the length direction of the first metal reflectors being parallel to the first straight line; the plurality of first radiating elements are connected to the 2400-2500 MHz feed network located on the back surface of the metal plate;

[0011] The first radiation unit is made by a die-casting process.

[0012] Furthermore, the 2400-2500MHz feeding network includes a coaxial cable and a 2400-2500MHz power splitter, the 2400-2500MHz power splitter has an input end and several output ends, the number of the several output ends is equal to the number of the first radiating units and they are connected one-to-one, and the input end is electrically connected to the connector module.

[0013] Preferably, the second radiating array includes an 840-930MHz dual-polarized radiating unit and an 840-930MHz feeding network; the 840-930MHz dual-polarized radiating unit is a die-cast radiating unit; one end of the 840-930MHz feeding network is connected to the 840-930MHz dual-polarized radiating unit, and the other end is connected to the connector module.

[0014] Preferably, the fourth radiation array includes several 4900-5350MHz radiation units, the fifth radiation array includes several 5640-6000MHz radiation units, the fourth radiation array and the fifth radiation array are made of brass plates, and both are air microstrip structures; a plurality of support columns of the same height are provided at the bottom of the metal reflector plate, the bottom of the support column is connected to the metal plate, and the metal reflector plate is parallel to the metal plate.

[0015] Furthermore, each of the 4900-5350MHz radiation unit and the 5640-6000MHz radiation unit is provided with a guide plate, the guide plate is parallel to the metal reflector, and the guide plate is fixed to the 4900-5350MHz radiation unit and the 5640-6000MHz radiation unit respectively through a connecting piece.

[0016] Preferably, the third radiating array is located to the upper right of the second radiating array, and the third radiating array includes an 1160-1300MHz radiating unit and a 1160-1300MHz feeding network, and the two ends of the 1160-1300MHz feeding network are respectively connected to the 1160-1300MHz radiating unit and the connector module; the 1160-1300MHz radiating unit is a low-loss PCB, and the 1160-1300MHz feeding network is a coaxial cable. Second metal reflective plates facing each other are provided above and below the 1160-1300MHz radiating unit, and the 1160-1300MHz radiating unit is fixed to the metal plate through a support column.

[0017] Preferably, the shell includes an antenna cover and an antenna base plate, the metal plate is provided with a cover support column, the metal plate is fixed inside the shell through the cover support column, and the antenna cover and the antenna base plate are fixedly connected by screws; the connector module includes a plurality of RF coaxial connectors, the antenna base plate is provided with the same number of through holes, and the through holes are adapted to the RF coaxial connectors; a third metal reflector is also provided on the right side of the metal plate, and the third metal reflector is located on the right side of the third radiation array, the second spacer area and the sixth radiation array.

[0018] Preferably, the metal plate has several through holes, and the connection between the radiation array module and the connector module is fixed on the back of the metal plate by welding clamps; a plurality of support members are provided on the surface of the antenna base plate opposite to the metal plate, and the support members and the antenna base plate are an integrally formed structure.

[0019] The technical solution provided by the utility model may have the following beneficial effects:

[0020] 1. Using six radiation arrays in different frequency bands to collaborate, it can radiate electromagnetic waves in different frequency bands, covering the operating frequency bands of more drones, thereby being able to strike more different types of drones. Through a specific position layout, it can concentrate energy to radiate in a specific direction, making the energy more concentrated, thereby increasing the antenna's radiation power and coverage distance in a specific direction, as well as increasing the antenna's gain.

[0021] 2. The radiation unit adopts die-casting process, or uses low-loss PCB material or brass, which has good heat dissipation performance and structural stability, and is suitable for long-term operation under high power conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a top view of the internal structure of an embodiment of the present utility model.

[0023] Figure 2 This is a schematic diagram of the antenna base plate structure of an embodiment of the present utility model.

[0024] Figure 3 It is a schematic diagram of the internal structure of an embodiment of the utility model.

[0025] Figure 4 This is a right side view of an embodiment of the present invention. (The metal reflector, the first radiation array, and the sixth radiation array are omitted.)

[0026] Figure 5 It is a rear view of the internal structure of an embodiment of the present utility model.

[0027] Wherein: metal plate 1, first radiating array 11, 2400-2500MHz radiating element 111, 2400-2500MHz feeding network 112, 2400-2500MHz power splitter 1122, second radiating array 12, 840-930MHz dual-polarized radiating element 121, 840-930MHz feeding network 122, third radiating array 13, 1160-1300MHz radiating element 131, 1160-1300MHz 0MHz feeding network 132, fourth radiation array 14, 4900-5350MHz radiation unit 141, fifth radiation array 15, 5640-6000MHz radiation unit 151, metal reflector 143, connector 144, guide plate 145, sixth radiation array 16, outer cover support column 10, connector module 2, first metal reflector 31, second metal reflector 32, third metal reflector 33, antenna base plate 4, support 41, welding clamp 5. DETAILED DESCRIPTION

[0028] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more such features, and are used to distinguish between the described features, without distinction of order or importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0031] Below is the attached figure Figures 1 to 5 The technical solution of the utility model is further illustrated through specific implementation methods.

[0032] An antenna for drone strike, comprising a housing, a radiation array module, a metal plate 1, and a connector module 2, wherein the housing is used to accommodate the radiation array module, the metal plate 1, and the connector module 2;

[0033] The radiation array module is fixed on the metal plate 1, and includes a first radiation array 11, a second radiation array 12, a third radiation array 13, a fourth radiation array 14, a fifth radiation array 15 and a sixth radiation array 16. The second radiation array 12 is located in the middle of the metal plate 1, and the fourth radiation array 14, the fifth radiation array 15, the sixth radiation array 16, the third radiation array 13 and the first radiation array 11 are sequentially arranged around the outer periphery of the second radiation array 12 in a counterclockwise order. The fourth radiation array 14, the fifth radiation array 15 and the sixth radiation array 16 are arranged in the same row. A first spacing area is provided between the third radiation array 13 and the first radiation array 11, and a second spacing area is provided between the third radiation array 13 and the sixth radiation array 16. The first radiation array 11 is arranged opposite to the third radiation array 13 and the second spacing area.

[0034] The connector module 2 is mounted on the metal plate 1 and is electrically connected to the radiation array module. The connector module 2 includes a plurality of radio frequency coaxial connectors, and the radio frequency coaxial connectors are used to connect the radiation array module to a radio frequency source.

[0035] At present, drones are becoming increasingly common, and there are more and more drones in real life. However, in this case, the probability of drones flying into restricted airspace increases. Therefore, strike actions must be taken against drones flying into restricted airspace to render them inoperable or force them to land.

[0036] Compared with physical strike methods, drone strike antennas are mainly based on interfering with the drone's communication link, navigation positioning or control system, causing it to lose control or forcing it to return, in order to achieve the purpose of weakening, blocking or even controlling the drone's operation. It will not cause fatal damage to the surrounding environment or personnel and can quickly interfere with the target drone with a fast response time. However, with the development of drones and the expansion of their application fields, the frequency band requirements for anti-drone antennas are no longer limited to one frequency band, and the demand for strike range and penetration is gradually increasing.

[0037] To this end, the present technical solution proposes an antenna for drone strikes, including a radiation array module, which is fixed on the metal plate 1. The radiation array module includes six radiation arrays of different frequency bands, and the six radiation arrays of different frequency bands are respectively a first radiation array 11, a second radiation array 12, a third radiation array 13, a fourth radiation array 14, a fifth radiation array 15 and a sixth radiation array 16, which can cover multiple frequency bands used by drones, including 2.4GHz and 5.8GHz. Usually, when the frequency band of a drone is 2.4GHz, it is used for image transmission and data communication, and when the frequency band is 5.8GHz, it is used for video transmission. This can adapt to the interference requirements of different types of drones in the six frequency bands.

[0038] The six radiating arrays of different frequency bands work together in a specific distribution. The first and second spacing zones reduce the mutual influence of the various frequency bands, concentrating energy for radiation in a specific direction. This allows for greater energy concentration, thereby increasing the antenna's radiation power and coverage distance in that specific direction. The higher the gain, the greater the antenna's radiation capability in a specific direction, thus expanding power and coverage, addressing the current issues of insufficient power and performance for anti-UAV antennas used to strike drones. Furthermore, the use of six frequency bands can cover multiple communication bands used by drones, thereby interfering with multiple drones, rather than just one. This addresses the current issue of a single antenna being unable to strike drones in different frequency bands or having limited attack bands.

[0039] like Figure 1 and Figure 3 As shown, the fourth radiation array 14 and the fifth radiation array 15 are arranged on the same metal reflection plate 143, and the metal reflection plate 143 is mounted on the lower left of the plate surface of the metal plate 1 through a supporting column. The 2400-2500MHz radiation array 11 is located on the left side of the plate surface of the second radiation array 12, the sixth radiation array 16 is located on the lower right of the plate surface of the metal plate 1, and the 1160-1300MHz radiation array is located on the upper right of the plate surface of the second radiation array 12; the radiation frequency band of the first radiation array is 2400-2500MHz, the radiation frequency band of the second radiation array is 840-930MHz, the radiation frequency band of the third radiation array is 1160-1300MHz, the radiation frequency band of the fourth radiation array is 4900-5350MHz, the radiation frequency band range of the fifth radiation array is 5640-6000MHz, and the radiation range of the sixth radiation array is 1550-1630MHz.

[0040] The above layout can further optimize the radiation pattern and beamforming while maintaining the above six frequency bands without increasing the total power consumption of the antenna, thereby increasing the equivalent radiated power in a specific direction and achieving more effective interference against specific targets. In addition, this array arrangement can reduce mutual interference between different frequency bands, helping to improve the stability and reliability of the system.

[0041] The fourth radiation array 14 and the fifth radiation array 15 are located below the second radiation array 12, and the sixth radiation array 16 is located at the lower right corner of the plate surface of the metal plate 1, and is not isolated from the second radiation array 12. Therefore, the fourth radiation array 14, the fifth radiation array 15 and the sixth radiation array 16 can adjust the beam width of the second radiation array 12; the radiation frequency band of the second radiation array is 840-930MHz, which is located in the middle of the metal plate 1 and can adapt to the longer wavelength of the radiation frequency of the second radiation array. The above arrangement provides the second radiation array with sufficient reflection surface.

[0042] Preferably, the first radiation array 11 includes a plurality of 2400-2500MHz radiation units 111, a 2400-2500MHz feeding network 112 and two first metal reflectors 31, the two first metal reflectors 31 are arranged opposite to each other on the front surface of the metal plate 1, one on the left and one on the right, and form a first installation area on the metal plate 1; a plurality of the 2400-2500MHz radiation units 111 are arranged at intervals along a first straight line on the left side of the second radiation array 12, and are located in the first installation area, and the length direction of the first metal reflector 31 is parallel to the first straight line; a plurality of the 2400-2500MHz radiation units 111 are connected to the 2400-2500MHz feeding network 112 located on the back surface of the metal plate 1; the 2400-2500MHz radiation units 111 are made by die-casting process.

[0043] Specifically, the first radiation array 11 includes a plurality of 2400-2500MHz radiation units 111 and a 2400-2500MHz feeding network 112, which can radiate electromagnetic waves of 2400-2500MHz; the first radiation array 11 also includes two first metal reflectors 31, which are arranged on the front surface of the metal plate 1, one on the left and one on the right, and form a first mounting area on the metal plate 1. The plurality of 2400-2500MHz radiation units 111 are arranged along a first straight line and spaced apart in the second radiation array 12. , and is located on the left side of the first installation area. The length direction of the first metal reflector 31 is parallel to the first straight line, which can separate the first radiation array 11 from other radiation arrays without affecting the radiation range of other radiation arrays. By adjusting the width of the first installation area formed by the two first metal reflectors 31, the beam width of the first radiation array 11 can be adjusted to achieve precise beam forming, improve the antenna's directivity and ability to cover a specific area, and the first metal reflector 31 has a simple structure. This simplicity helps to reduce costs and improve production efficiency.

[0044] The 2400-2500MHz radiation unit 111 is made by a die-casting process. The radiation unit manufactured by the die-casting process has high structural stability and mechanical strength. This stability helps to maintain the performance of the antenna under various environmental conditions and reduce performance changes caused by structural deformation. Due to its structural stability and material properties, it can usually withstand higher power and can realize a complex internal structure, which helps to effectively manage heat during long-term operation and prevent overheating. Therefore, the 2400-2500MHz radiation unit 111 can work at high power for a long time, effectively improve the antenna performance, and meet the purpose of high power.

[0045] Furthermore, the 2400-2500 MHz feeding network 112 includes a coaxial cable and a 2400-2500 MHz power splitter 1122, the 2400-2500 MHz power splitter 1122 has an input end and several output ends, the number of the several output ends is equal to the number of the 2400-2500 MHz radiation units 111 and they are connected one-to-one, and the input end is electrically connected to the connector module 2.

[0046] Specifically, the 2400-2500MHz feeding network 112 includes a coaxial cable and a 2400-2500MHz power splitter 1122. The 2400-2500MHz power splitter 1122 has an input end and several output ends. The number of the output ends is equal to the number of the 2400-2500MHz radiation units 111 and is connected one-to-one. The input end is electrically connected to the connector module 2. The power splitter is designed to have very low insertion loss, which means that the loss is small when distributing power, thereby improving the efficiency of the entire system; it helps to reduce the power consumption and cost of the equipment, improve space utilization efficiency, and can improve the coverage and reliability of the wireless communication system, which is beneficial to improving antenna performance and adapting to high-power and long-term working conditions.

[0047] In a preferred embodiment, the number of the 2400-2500 MHz radiation units 111 is three, and the power splitter is a one-to-three power splitter, which reduces material and manufacturing costs and achieves good isolation and phase consistency between the various 2400-2500 MHz radiation units 111, thereby optimizing the overall performance of the antenna.

[0048] Preferably, the second radiation array 12 includes an 840-930 MHz dual-polarization radiation unit 121 and an 840-930 MHz feeding network 122; the 840-930 MHz dual-polarization radiation unit 121 is a die-cast radiation unit; one end of the 840-930 MHz feeding network 122 is connected to the 840-930 MHz dual-polarization radiation unit 121, and the other end is connected to the connector module 2.

[0049] Specifically, the second radiation array 12 includes an 840-930MHz dual-polarization radiation unit 121, which can radiate electromagnetic waves in two orthogonal polarization directions at the same time, so that the antenna used for drone strike can provide two independent communication channels in the same frequency band, effectively improving the utilization of the spectrum and expanding the communication capacity, so that the antenna can radiate electromagnetic waves in two orthogonal polarization directions at the same time; and can increase the gain of the antenna, which is very beneficial to improving communication quality and coverage range.

[0050] The 840-930 MHz dual-polarized radiation unit 121 adopts a die-casting process, which provides design flexibility and allows the manufacture of complex and fine-shaped components, so that the 840-930 MHz dual-polarized radiation unit 121 can better adapt to different working environments and requirements; the 840-930 MHz dual-polarized radiation unit 121 includes a radiator and a base, the radiator and the base are an integrally molded structure, the radiator's vibrators are symmetrically arranged, and the radiator has a hollow structure of any shape, which helps to reduce weight, can work for a long time, effectively manage heat, prevent overheating, and adapt to high-power working environments.

[0051] One end of the 840-930MHz feeding network 122 is connected to the 840-930MHz dual-polarized radiating unit 121, and the other end is connected to the connector module 2. Because the 840-930MHz dual-polarized radiating unit 121 can provide two independent communication channels in the same frequency band, the connector module 2 has two corresponding ports, which improves the coverage of different types of drones and reduces interference between radiating arrays in different frequency bands.

[0052] Preferably, the fourth radiation array 14 includes a plurality of 4900-5350 MHz radiation units 141, and the fifth radiation array 15 includes a plurality of 5640-6000 MHz radiation units 151. The fourth radiation array 14 and the fifth radiation array 15 are made of brass plates and are both air microstrip structures.

[0053] A plurality of support columns of the same height are provided at the bottom of the metal reflective plate 143 . The bottoms of the support columns are connected to the metal plate 1 . The metal reflective plate 143 is parallel to the metal plate 1 .

[0054] Specifically, the fourth radiating array 14 includes a plurality of 4900-5350 MHz radiating elements 141, and the fifth radiating array 15 includes a plurality of 5640-6000 MHz radiating elements 151, capable of radiating electromagnetic waves in the 4900-5350 MHz and 5640-6000 MHz frequency bands. The fourth radiating array 14 and the fifth radiating array 15 are located to the lower left of the second radiating array 12, without any metal reflective sheet separating them from the second radiating array 12, and are capable of adjusting the beam width of the second radiating array 12.

[0055] The fourth radiating array 14 and the fifth radiating array 15 are made of brass plates. Brass has excellent thermal conductivity, which facilitates effective thermal management under high-power operating conditions, preventing overheating and thereby improving the antenna's power handling capacity. The fourth radiating array 14 and the fifth radiating array 15 are both air microstrip structures. Brass has excellent electrical conductivity, which enables radiating arrays made of brass plates to effectively transmit electromagnetic energy and reduce signal loss during transmission, which is beneficial for high-power transmission working environments. In addition, brass plates have good machinability, which facilitates the manufacture of air microstrip structures, reduces the size of microstrip antennas, improves the antenna's transmission efficiency and gain, and effectively broadens the antenna's operating frequency band.

[0056] A plurality of support columns of the same height are provided at the bottom of the metal reflector 143 and are connected to the metal plate 1 . The support columns serve to stably fix the metal reflector 143 on the metal plate 1 and are arranged parallel to the metal plate 1 .

[0057] Furthermore, each of the 4900-5350 MHz radiation unit 141 and the 5640-6000 MHz radiation unit 151 is provided with a guide plate 145, and the guide plate 145 is parallel to the metal reflective plate 143. The guide plate 145 is fixed to the 4900-5350 MHz radiation unit 141 and the 5640-6000 MHz radiation unit 151 respectively through a connecting piece 144.

[0058] Specifically, such as Figure 2 and Figure 3 As shown, each of the 4900-5350MHz radiation units 141 and the 5640-6000MHz radiation units 151 is provided with a guide plate 145, the guide plate 145 is parallel to the metal reflector 143, the guide plate 145 is adapted to the size of the radiation unit, the center of the guide plate 145, the connector 144, the center of the 4900-5350MHz radiation unit 141 and the center of the 5640-6000MHz radiation unit 151 are located on the same axis, and the guide plate is fixed to the metal reflector 143 by the connector 144. On the 4900-5350MHz radiation unit 141 and the 5640-6000MHz radiation unit 151, based on the interference effect of electromagnetic waves, when the electromagnetic waves are radiated to the guide plate 145, induced currents are generated on the guide plate 145. The electromagnetic fields generated by these currents are combined with the incident electromagnetic waves. Due to the phase delay, the electromagnetic waves are enhanced in the direction of the guide plate 145, thereby improving the gain of the antenna and improving the radiation performance of the 4900-5350MHz radiation unit 141 and the 5640-6000MHz radiation unit 151.

[0059] In a preferred embodiment, the number of the 4900-5350 MHz radiation units 141 and the number of the 5640-6000 MHz radiation units 151 are four each, and the eight radiation units form a 2×4 array on the same brass plate. Correspondingly, there are eight guide plates 145 located on the eight radiation units respectively.

[0060] Preferably, the third radiation array 13 is located above and to the right of the second radiation array 12, and the third radiation array 13 includes an 1160-1300MHz radiation unit 131 and a 1160-1300MHz feeding network 132, and the two ends of the 1160-1300MHz feeding network 132 are respectively connected to the 1160-1300MHz radiation unit 131 and the connector module 2; the 1160-1300MHz radiation unit 131 is a low-loss PCB, the 1160-1300MHz feeding network 132 is a coaxial cable, and second metal reflective plates 32 facing each other are provided above and below the 1160-1300MHz radiation unit 131, and the 1160-1300MHz radiation unit 131 is fixed to the metal plate 1 through a support column.

[0061] Specifically, the third radiation array 13 can radiate electromagnetic waves in the 1160-1300MHz frequency band, and the 1160-1300MHz radiation unit 131 is a low-loss PCB, that is, a low-loss printed circuit board; PCB materials are usually lighter than traditional metal materials, have good electrical insulation properties and certain mechanical strength, which helps to reduce the overall weight of the antenna and improve the efficiency and reliability of the antenna. In addition, the low-loss PCB helps to reduce the attenuation and energy loss of the signal during transmission, and also has excellent electrical properties and heat dissipation properties, thereby improving the signal transmission efficiency and communication quality, and working for a long time in a high-power working environment.

[0062] Second metal reflective plates 32 are provided above and below the 1160-1300 MHz radiation unit 131 to adjust the beam width of electromagnetic waves in the 1160-1300 MHz frequency band.

[0063] like Figure 2 and Figure 3As shown, the shell includes an antenna cover and an antenna base plate 4, the metal plate 1 is provided with a cover support column 10, the metal plate 1 is fixed inside the shell through the cover support column 10, and the antenna cover is fixed to the antenna base plate 4 by screws; the connector module 2 includes a plurality of RF coaxial connectors, the antenna base plate 4 is provided with the same number of through holes, and the through holes are adapted to the RF coaxial connectors; a third metal reflective plate 33 is also provided on the right side of the metal plate 1, and the third metal reflective plate 33 is located on the right side of the third radiation array 13, the second spacer area and the sixth radiation array 16.

[0064] Specifically, the shell includes an antenna cover and an antenna base plate 4, the metal plate 1 is provided with a cover support column 10, the metal plate 1 is fixed inside the shell through the cover support column 10, the antenna cover and the antenna base plate 4 are fixedly connected by screws, the cover support column 10 can protect the radiation array inside the antenna when the antenna is subjected to pressure shock, the shell can reduce the impact of the environment on the radiation array, and ensure the durability of the antenna.

[0065] The connector module 2 includes several RF coaxial connectors, and the antenna cover 4 is provided with several through holes, which are adapted to the RF coaxial connectors, which is equivalent to the radiation array of the antenna corresponding to different frequency bands, and has several corresponding ports, providing greater flexibility. It can be adjusted according to different communication needs and frequency band requirements, more effectively utilize available spectrum resources, and can process more communication channels at the same time, thereby improving the capacity of the system and making antenna maintenance easier.

[0066] A third metal reflective sheet 33 is provided on the right side of the metal plate 1 . The third metal reflective sheet 33 on the right side of the metal plate 1 is parallel to the edge of the metal plate 1 and can adjust the beam width of the second radiation array 12 and the sixth radiation array 16 .

[0067] In one embodiment, there is one third metal reflective plate 33 , which extends from the right side of the third radiation array 13 and the second spacing area, and extends to the right side of the second spacing area and the sixth radiation array 16 .

[0068] In another embodiment, the number of the third metal reflective plates 33 is two, and the two third metal reflective plates 33 are spaced apart and distributed one above and one below. One of the third metal reflective plates 33 is located on the right side of the third radiation array 13 and the second spacing area, and the other third metal reflective plate 33 is located on the right side of the second spacing area and the sixth radiation array 16, which does not affect the connection and fixation between the antenna cover and the antenna base plate 4.

[0069] Preferably, the metal plate 1 has several through holes, and the connection between the radiation array module and the connector module 2 is fixed on the back of the metal plate 1 through a welding clamp 5; the antenna base plate 4 is provided with several support members 41 on the surface opposite to the metal plate 1, and the support members 41 and the antenna base plate 4 are an integrally formed structure.

[0070] Specifically, the metal plate 1 has several through-holes, allowing the radiating array module and the connector module 2 to be electrically connected through the through-holes of the metal plate 1, reducing material usage and improving circuit simplicity. A welding clamp 5 is provided on the back of the metal plate 1. This not only improves installation efficiency but also ensures a more stable and reliable connection between the metal plate 1 and the connector module 2, reducing poor contact caused by poor welding. Furthermore, the welding clamp 5 connection reduces signal loss at the connection point, improving signal transmission efficiency.

[0071] The plurality of support members 41 are used to separate the base plate 4 from the metal plate 1 , protect the line between the metal plate 1 and the antenna base plate 4 , and ensure the line safety and overall stability of the antenna.

[0072] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to devise other specific implementations of the present invention without inventive effort, and such implementations will fall within the scope of protection of the present invention.

Claims

1. An antenna for drone strike, characterized by: It comprises a shell, a radiation array module, a metal plate and a connector module, wherein the shell is used to accommodate the radiation array module, the metal plate and the connector module; The radiation array module is fixed to the metal plate, and includes a first radiation array, a second radiation array, a third radiation array, a fourth radiation array, a fifth radiation array, and a sixth radiation array. The second radiation array is located in the middle of the metal plate, and the fourth radiation array, the fifth radiation array, the sixth radiation array, the third radiation array, and the first radiation array are sequentially arranged counterclockwise around the periphery of the second radiation array. The fourth radiation array, the fifth radiation array, and the sixth radiation array are arranged in the same row. A first spacing area is provided between the third radiation array and the first radiation array, and a second spacing area is provided between the third radiation array and the sixth radiation array. The first radiation array is arranged opposite to the third radiation array and the second spacing area. The connector module is mounted on the metal plate and is electrically connected to the radiation array module. The connector module includes a plurality of radio frequency coaxial connectors, and the radio frequency coaxial connectors are used to connect the radiation array module to a radio frequency source.

2. The antenna for drone strike according to claim 1, characterized in that: The fourth radiating array and the fifth radiating array are arranged on the same metal reflective plate, and the metal reflective plate is mounted on the lower left side of the plate surface of the metal plate through a supporting column. The first radiating array is located on the left side of the plate surface of the second radiating array, the sixth radiating array is located on the lower right side of the plate surface of the metal plate, and the third radiating array is located on the upper right side of the plate surface of the second radiating array. The radiation frequency band of the first radiation array is 2400-2500MHz, the radiation frequency band of the second radiation array is 840-930MHz, the radiation frequency band of the third radiation array is 1160-1300MHz, the radiation frequency band of the fourth radiation array is 4900-5350MHz, the radiation frequency band of the fifth radiation array is 5640-6000MHz, and the radiation range of the sixth radiation array is 1550-1630MHz.

3. The antenna for drone strike according to claim 2, characterized in that: The first radiating array includes a plurality of first radiating elements, a 2400-2500 MHz feed network, and two first metal reflectors, the two first metal reflectors being disposed opposite each other on the front surface of the metal plate, one on the left and one on the right, and forming a first mounting area on the metal plate; the plurality of first radiating elements are spaced apart and distributed along a first straight line on the left side of the second radiating array and located within the first mounting area, and the length direction of the first metal reflectors is parallel to the first straight line; The plurality of first radiating units are connected to a 2400-2500 MHz feeding network located on the back surface of the metal plate; The first radiation unit is made by a die-casting process.

4. The antenna for drone strike according to claim 3, characterized in that: The 2400-2500MHz feeding network includes a coaxial cable and a 2400-2500MHz power splitter. The 2400-2500MHz power splitter has an input end and several output ends. The number of the several output ends is equal to the number of the first radiating units and they are connected one-to-one. The input end is electrically connected to the connector module.

5. The antenna for drone strike according to claim 2, characterized in that: The second radiating array includes an 840-930 MHz dual-polarized radiating unit and an 840-930 MHz feeding network; The 840-930MHz dual-polarization radiation unit is a die-cast radiation unit; One end of the 840-930 MHz feeding network is connected to the 840-930 MHz dual-polarization radiating unit, and the other end is connected to the connector module.

6. The antenna for drone strike according to claim 2, characterized in that: The fourth radiating array includes a plurality of 4900-5350 MHz radiating units, and the fifth radiating array includes a plurality of 5640-6000 MHz radiating units. The fourth radiating array and the fifth radiating array are made of brass plates and are both air microstrip structures; A plurality of support columns of the same height are provided at the bottom of the metal reflective plate. The bottoms of the support columns are connected to the metal plate. The metal reflective plate is parallel to the metal plate.

7. The antenna for drone strike according to claim 6, characterized in that: Each of the 4900-5350MHz radiation unit and the 5640-6000MHz radiation unit is provided with a guide plate, the guide plate is parallel to the metal reflector plate, and the guide plate is fixed to the 4900-5350MHz radiation unit and the 5640-6000MHz radiation unit respectively through a connecting piece.

8. The antenna for drone strike according to claim 2, characterized in that: The third radiating array is located to the upper right of the second radiating array, and the third radiating array includes a 1160-1300 MHz radiating unit and a 1160-1300 MHz feeding network, and two ends of the 1160-1300 MHz feeding network are respectively connected to the 1160-1300 MHz radiating unit and the connector module; The 1160-1300MHz radiation unit is a low-loss PCB, the 1160-1300MHz feeding network is a coaxial cable, and second metal reflective plates facing each other are provided above and below the 1160-1300MHz radiation unit. The 1160-1300MHz radiation unit is fixed to the metal plate via a support column.

9. The antenna for drone strike according to claim 1, characterized in that: The housing includes an antenna cover and an antenna base plate, the metal plate is provided with a cover support column, the metal plate is fixed inside the housing through the cover support column, and the antenna cover and the antenna base plate are fixedly connected by screws; The connector module includes several RF coaxial connectors, and the antenna base plate is provided with the same number of through holes, and the through holes are adapted to the RF coaxial connectors; a third metal reflector is also provided on the right side of the metal plate, and the third metal reflector is located on the right side of the third radiation array, the second spacer area and the sixth radiation array.

10. The antenna for drone strike according to claim 9, characterized in that: The metal plate has a plurality of through holes, and the connection between the radiation array module and the connector module is fixed on the back side of the metal plate by welding clips; A plurality of supporting members are provided on the surface of the antenna bottom plate opposite to the metal plate, and the supporting members and the antenna bottom plate are an integrally formed structure.

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