Anti-unmanned aerial vehicle antenna structure

Abstract

The invention provides an anti-unmanned aerial vehicle antenna structure, which comprises a reflecting plate, two groups of orthogonal radiation units and a power distribution network circuit board which are arranged on the reflecting plate, and an antenna housing which sleeves the outermost side, the two groups of orthogonal radiation units are arranged on the front surface of the reflecting plate and comprise a 868MHz / 915MHz dual-band antenna, a 1.5 GHz antenna, a 2.4 GHz antenna and a 5.8 GHz antenna, and the power distribution network circuit board is arranged on the reflecting plate. The 868MHz / 915MHz dual-band antennas are located on the left side and the right side of the reflecting plate and are arranged in the middle up and down, the 1.5 GHz antennas are arranged in the middle up and down, the 2.4 GHz antennas are located at the four corners of the reflecting plate, and the 5.8 GHz antennas are arranged in the middle; a power distribution network circuit board and a plurality of radio frequency module cable probes are installed on the back face of the reflecting plate, the power distribution network circuit board is located in the center of the back face of the reflecting plate, and the radio frequency cable probes comprise a 868MHz / 915MHz radio frequency cable connector, a 1.5 GHz radio frequency cable connector, a + 2.4 GHz radio frequency cable connector, a-2.4 GHz radio frequency cable connector and a 5.8 GHz radio frequency cable connector. The antenna is smaller in structure, convenient to install, higher in performance and higher in gain.

Description

Technical Field

[0001] The present invention relates to the technical field of anti-UAV, and in particular to an anti-UAV antenna structure. Background Art

[0002] Anti-UAV system refers to the anti-UAV defense system that counters UAV system, including missile strikes on UAVs, UAV early warning and monitoring, electronic interference, laser interception and other technical system means, which belong to anti-UAV technology.

[0003] Existing anti-UAV antennas have the following problems:

[0004] 1. The existing antenna gain is low, the size is large, and the electromagnetic wave overflows. Its performance cannot effectively interfere with ordinary consumer-grade drones and special link drones.

[0005] 2. Existing antennas generally use a single technical solution such as horizontal or vertical polarization, and the spillover of electromagnetic wave radiation is also a major technical defect. Multiple factors have led to the backwardness of existing anti-UAV antenna technical solutions.

[0006] 3. With in-depth and long-term research, the defects of existing antenna technology solutions can no longer meet the effective interference with drones. How to find an orthogonal antenna technology structure with high efficiency, small size, high gain, and negligible electromagnetic spillover, and apply it to anti-drone, is a technical breakthrough that needs to be solved at present.

[0007] 4. Currently, most of the industry uses PCB / Yagi / speaker / logarithmic antennas (low gain, large antenna size, low performance efficiency, single vertical or horizontal transmission direction, and electromagnetic wave radiation spillover cannot be controlled). This also directly leads to the difficulty of countering consumer-grade drones, let alone special link drones. The countermeasure effect is not good.

[0008] 5. Antenna design schemes such as PCB / Yagi / horn logarithmic antenna have no electromagnetic suppression capability, especially for data links that use frequency hopping, spread spectrum, directional beam, fluctuating power, and other technical systems.

[0009] 6. Due to the characteristics of electromagnetic waves, horizontally polarized signals will generate polarized currents on the surface of the earth when they are close to the ground, causing the electric field signal to decay rapidly. Summary of the invention

[0010] The object of the present invention is to solve at least one of the technical drawbacks.

[0011] To this end, the purpose of the present invention is to propose an anti-UAV antenna structure to solve the problems mentioned in the background technology and overcome the shortcomings of the prior art.

[0012] In order to achieve the above-mentioned purpose, an embodiment of the present invention provides an anti-UAV antenna structure, comprising: a reflector, two groups of orthogonal radiation units and a power distribution network circuit board mounted on the reflector, and a radome sleeved on the outermost side, wherein:

[0013] The two groups of orthogonal radiation units are installed on the front of the reflector, including: an 868MHz / 915MHz dual-band antenna, a 1.5GHz antenna, a 2.4GHz antenna and a 5.8GHz antenna. The 868MHz / 915MHz dual-band antenna is located on the left and right sides of the reflector and centered vertically, the 1.5GHz antenna is arranged vertically and centered, the 2.4GHz antenna is located at the four corners of the reflector, and the 5.8GHz antenna is arranged in the center.

[0014] The power distribution network circuit board and a plurality of RF module cable probes are installed on the back of the reflector. The power distribution network circuit board is located in the center of the back of the reflector. The plurality of RF cable probes include: 868MHz / 915MHz RF cable connector, 1.5GHz RF cable connector, +2.4GHz RF cable connector, -2.4GHz RF cable connector, 5.8GHz RF cable connector, wherein:

[0015] The 868MHz / 915MHz dual-band antenna adopts a T-shaped structure design. A vertical down conductor is connected in the center of both sides of the horizontal conductor, and the coaxial cable 868MHz / 915MHz RF cable connector is ±45°

[0016] The 2.4GHz antenna is connected to the +2.4GHz RF cable connector +45° via a coaxial cable, and the 2.4GHz electromagnetic waves are vertically emitted via an orthogonal antenna;

[0017] The 2.4GHz antenna is connected to the 2.4GHz RF cable connector via a coaxial cable, and the 2.4GHz electromagnetic waves are horizontally emitted via an orthogonal antenna;

[0018] The 1.5GHz antenna is connected to the 1.5GHz RF cable connector at ±45° via a coaxial cable. The 1.5GHz antenna transmits through an orthogonal antenna signal group consisting of two symmetrical oscillators of the same shape and interfering with each other, and simultaneously transmits interference electromagnetic waves in a cross-shaped form;

[0019] The 5.8GHz antenna is connected to the .8GHz RF cable connector +45° via a coaxial cable.

[0020] Preferably, from any of the above schemes, the 868 MHz / 915 MHz dual-band antenna is an orthogonal antenna array composed of two symmetrical oscillators of the same shape and orthogonal interference with each other.

[0021] Preferably, in any of the above schemes, the 1.5 GHz antenna is an orthogonal antenna array composed of two symmetrical oscillators of the same shape and orthogonal interference with each other.

[0022] Preferably, in any of the above schemes, the 2.4 GHz antenna is an orthogonal antenna array composed of four symmetrical oscillators of the same shape and orthogonal interference with each other.

[0023] Preferably, from any of the above schemes, the 5.8 GHz antenna is an orthogonal antenna array composed of 8 planar antenna symmetrical oscillators of the same shape and orthogonal interference with each other.

[0024] Preferably, any of the above schemes is that the reflector is used as an antenna carrier plate, and after the entire aluminum plate is sintered at high temperature for the first time, the metal part of the antenna is embedded in the antenna carrier plate.

[0025] Preferably, any of the above solutions is that a 1.5 GHz coupler is further installed on the back of the reflector, and the 1.5 GHz coupler is connected to the 1.5 GHz antenna and the 1.5 GHz antenna element.

[0026] Preferably, any of the above solutions is that a 2.4 GHz directional coupler is further installed on the back of the reflector, and the 2.4 GHz directional coupler is connected to the 2.4 GHz antenna and the 2.4 GHz antenna element.

[0027] Preferably, from any of the above schemes, the power distribution network circuit board is connected to the 868MHz / 915MHz symmetrical antenna and the 868MHz / 915MHz antenna element.

[0028] Preferably, any of the above schemes comprises that the 868MHz / 915MHz dual-band antenna simultaneously transmits 868MHz / 915MHz dual-frequency electromagnetic waves, transmits orthogonal signals through an orthogonal antenna group composed of two symmetrical oscillators of the same shape and interfering with each other, and simultaneously transmits orthogonal electromagnetic waves in a cross-shaped manner.

[0029] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0030] 1. The orthogonal antenna structure is more scientifically and reasonably arranged, the design is more compact, space-saving, and a variety of antenna materials are used, so that the mutual influence between different frequencies of various materials is smaller, achieving perfect structural fusion.

[0031] 2. The orthogonal structure is more compact, easy to install, more powerful, and has higher gain. Compared with antennas of the same size, it has better performance.

[0032] 3. The orthogonal structure solution successfully breaks through the technical bottleneck that existing technologies on the market cannot attack special links, cross-country drones and fixed-wing drones. (Interference and attack on physical drone types)

[0033] 4. The higher the antenna gain, the better the directivity and the more concentrated the energy.

[0034] 5. Effectively combat analog / digital sources and various types of special link drones.

[0035] 6. At the same time, multiple frequency bands have high gain, high sensitivity, and stable operation. It has the advantages of small size, light weight, durability, high precision, and high sensitivity. It can effectively minimize the size while ensuring performance, providing more possibilities for mass production and marketization of equipment.

[0036] 7. The vertical polarization of the antenna structure makes it less likely to generate polarization current, thereby avoiding significant energy attenuation and ensuring the effective emission of interfering electromagnetic waves.

[0037] 8. Dual-polarized antennas include complex structures such as cross-dipole, strip or patch antennas that can support two orthogonal polarizations on the same device. The design may include multiple feed points or special feeding mechanisms to ensure uniformity and independence of the two polarizations.

[0038] 9. Anti-drone signal coverage is a key indicator for measuring antenna performance. In open areas, single-polarization antennas, especially vertical polarization designs, often provide better coverage performance, because the signal direction perpendicular to the ground can more effectively interfere with drone signals. In urban environments, due to the presence of buildings and complex electromagnetic environments, the polarization direction of the signal may change. At this time, orthogonal dual-polarization antennas can more effectively adapt to environmental changes, maintain the quality of electromagnetic wave signal transmission, and have better performance.

[0039] 10. Due to its integrated design, the dual-polarized antenna greatly reduces space requirements and maintenance costs, especially in space-constrained environments.

[0040] 11. The two polarization modes of ±45° used by the antenna are superimposed, and multiple oscillators form two orthogonal polarization waves in one unit, which is called dual-polarization orthogonal wave. This implementation method greatly improves the integration of the antenna while ensuring performance.

[0041] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0043] Figure 1 is a schematic diagram of an orthogonal dual-polarization antenna according to an embodiment of the present invention;

[0044] Figure 2 A schematic diagram of the front side (radiation unit) of the anti-UAV antenna structure according to an embodiment of the present invention;

[0045] Figure 3 is a schematic diagram of a reflection plate according to an embodiment of the present invention;

[0046] Figure 4 is a schematic diagram of a power distribution network according to an embodiment of the present invention;

[0047] Figure 5 is a schematic diagram of a radome according to an embodiment of the present invention;

[0048] Figure 6 It is a schematic diagram of the back side of the anti-UAV antenna structure according to an embodiment of the present invention;

[0049] Figure 7 is a schematic diagram of a half-wave antenna element according to an embodiment of the present invention;

[0050] Among them: 1. 868MHz / 915MHz RF cable connector; 2. 1.5GHz RF cable connector; 3. +2.4GHz RF cable connector; 4. -2.4GHz RF cable connector; 5. 5.8GHz RF cable connector; 6. 5333MHz-6GHz RF cable connector; 7. 1.5GHz coupler; 8. 2.4GHz directional coupler; 9. power distribution network circuit board; 10. mechanical mounting hole; 11. 5.8GHz antenna; 12. 5.8GHz antenna element; 13. 1.5GHz antenna; 14. 1.5GHz antenna element; 15. 868MHz / 915MHz dual-band antenna; 16. 868MHz / 915MHz antenna element; 17. 2.4GHz antenna; 18. 2.4GHz antenna element; 19. reflector; 20. antenna cover. DETAILED DESCRIPTION

[0051] Embodiments of the present invention are described in detail below, examples of which 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 to be used to explain the present invention, and should not be construed as limiting the present invention.

[0052] The anti-UAV antenna structure of the embodiment of the present invention adopts an orthogonal dual-polarization antenna, including: a reflector, two groups of orthogonal radiation units and a power distribution network circuit board installed on the reflector, and a radome installed on the outermost side.

[0053] Specifically, the propagation of electromagnetic waves is essentially the propagation of electromagnetic fields, and electric fields are directional. If the direction of the electric field is perpendicular to the ground, the present invention calls it a vertically polarized wave. Similarly, parallel to the ground, it is a horizontally polarized wave. If the direction of the electric field is at an angle of 45° to the ground, the present invention calls it ±45° polarization. The present invention is the first to apply the orthogonal dual-polarization structure antenna solution to anti-UAV.

[0054] The two polarization modes of ±45° used by the antenna are superimposed, and multiple oscillators form two orthogonal polarization waves in one unit, which is called dual-polarization orthogonal wave. This implementation method greatly improves the integration of the antenna while ensuring performance. Figure 1 As shown, the orthogonal dual-polarized antenna is composed of two groups of orthogonal radiating units. The radiating unit includes an antenna symmetrical vibrator and a patch array element.

[0055] like Figure 2 As shown, two groups of orthogonal radiation units are installed on the front of the reflector 19, including: 868MHz / 915MHz dual-band antenna 15, 1.5GHz antenna 13, 2.4GHz antenna and 5.8GHz antenna. The 868MHz / 915MHz dual-band T-type antenna is located on the left and right sides of the reflector 19 and centered vertically, using a copper-plated antenna. The 1.5GHz antenna 13 is arranged vertically and centered, the 2.4GHz antenna 17 is located at the four corners of the reflector 19, and the 5.8GHz antenna 11 is arranged in the center.

[0056] The present invention adopts a special structural arrangement design, so that all antennas can be used at the same time and there is little interference between them. The use of polarized ceramic dielectric at 2.4GHz is one of the keys to the efficient use of ceramic antennas. The silver layer design on the surface of the antenna can increase the resonant frequency of the antenna, making the heat loss in transmitting electromagnetic waves smaller and more efficient.

[0057] like Figure 3 As shown, the reflector 19 is used as the antenna carrier plate. After the entire aluminum plate is sintered at high temperature for the first time, the metal part of the antenna is embedded in the antenna carrier plate. Figure 5 Schematic diagram of the antenna cover 20 according to an embodiment of the present invention. The antenna cover 20 is arranged on the outside of the orthogonal dual-polarization antenna, and the mechanical mounting holes 10 are distributed on the outer circle of the antenna bearing aluminum plate. The antenna cover 20 and the shell are fixed by screws through the mechanical mounting holes 10.

[0058] like Figure 4 and Figure 6As shown, a power distribution network circuit board 9 and multiple RF module cable probes are installed on the back of the reflector 19. The power distribution network circuit board 9 is located in the center of the back of the reflector 19. The multiple RF cable probes include: 868MHz / 915MHz RF cable connector 1, 1.5GHz RF cable connector 2, +2.4GHz RF cable connector 3, -2.4GHz RF cable connector 4, 5.8GHz RF cable connector 5, 5333MHz-6GHz RF cable connector 6.

[0059] (1) 868MHz / 915MHz dual-band antenna

[0060] The 868MHz / 915MHz dual-band antenna 15 is an orthogonal antenna array composed of two symmetrical oscillators of the same shape and orthogonal interference with each other. The power distribution network circuit board 9 is connected to the 868MHz / 915MHz dual-band antenna and the 868MHz / 915MHz antenna oscillator 16 .

[0061] The RF module adopts the common source technology, and the 868MHz / 915MHz dual-band antenna 15 adopts a T-shaped structure design. A vertical down-lead is connected in the center of both sides of the horizontal conductor. The shape is like the English letter T, so it is called a T-shaped antenna. Through the coaxial cable 868MHz / 915MHz RF cable connector 1±45°.

[0062] The 868MHz / 915MHz dual-band antenna 15 is turned on to simultaneously emit 868MHz / 915MHz dual-band electromagnetic waves, and transmits orthogonal signals through an orthogonal antenna group composed of two symmetrical oscillators of the same shape and interfering with each other, while emitting orthogonal electromagnetic waves in a cross-shaped manner.

[0063] (2) 2.4 GHz antenna

[0064] The 2.4 GHz antenna 17 is an orthogonal antenna array composed of four symmetrical 2.4 GHz antenna elements 18 that have the same shape and orthogonal interference with each other.

[0065] The 2.4GHz antenna 17 is connected to the +2.4GHz RF cable connector 3+45° via a coaxial cable, and the 2.4GHz RF antenna vertically transmits electromagnetic waves via an orthogonal antenna. That is, the RF module +2.4GHz is connected to the SAM head +45° via a coaxial cable, and the 2.4GHz RF antenna vertically transmits electromagnetic waves via an orthogonal antenna.

[0066] The 2.4 GHz antenna is connected to the 2.4 GHz RF cable connector 4 through a coaxial cable, and the 2.4 GHz RF antenna horizontally transmits electromagnetic waves through an orthogonal antenna. That is, the RF module-2.4 GHz is connected to the SMA connector-45° through a coaxial cable, and the 2.4 GHz RF antenna horizontally transmits electromagnetic waves through an orthogonal antenna.

[0067] When the present invention is used, two radio frequency sources with different transmission directions transmit simultaneously, and different transmission directions are allocated through orthogonal antennas to achieve the purpose of countering drones.

[0068] (3) 1.5 GHz antenna

[0069] The 1.5 GHz antenna 13 is an orthogonal antenna array composed of two symmetrical 1.5 GHz antenna elements 14 that have the same shape and orthogonally interfere with each other.

[0070] The 1.5 GHz antenna 13 is connected to the 1.5 GHz radio frequency cable connector 2±45° via a coaxial cable. The 1.5 GHz antenna 13 transmits through an orthogonal antenna signal group consisting of two symmetrical oscillators of the same shape and interfering with each other, and simultaneously transmits interfering electromagnetic waves in a cross-shaped form.

[0071] (4) 5.8 GHz antenna

[0072] The 5.8 GHz antenna 11 is an orthogonal antenna array composed of eight planar antenna-symmetrical 5.8 GHz antenna elements 12 that have the same shape and orthogonal interference with each other.

[0073] The 5.8 GHz antenna 11 is connected to the 5.8 GHz radio frequency cable connector 5+45° via a coaxial cable.

[0074] That is, the RF module 5.8GHz is connected to the SMA head +45° through a coaxial cable, and the 5.8GHz module is transmitted through an orthogonal antenna signal group composed of 8 symmetrical oscillators of the same shape and mutual interference, while presenting a cross-shaped electromagnetic waveform transmission state to achieve the purpose of countering drones.

[0075] In addition, a 1.5 GHz coupler 7 is further installed on the back side of the reflection plate 19, and the 1.5 GHz coupler 7 is connected to the 1.5 GHz antenna and the 1.5 GHz antenna element.

[0076] A 2.4 GHz directional coupler 8 is further installed on the back of the reflector 19 , and the 2.4 GHz directional coupler 8 is connected to the 2.4 GHz antenna and the 2.4 GHz antenna element.

[0077] In summary, the orthogonal dual-polarized antenna of the present invention is composed of an antenna vibrator, a reflector, a feed network and a radome. The antenna as a whole adopts a longitudinally arranged antenna technical solution and uses a variety of antenna material designs. The multiple materials reduce the mutual interference between antennas. At the same time, the structural design of the new antenna has successfully integrated and optimized the characteristics of multiple materials. The 5GHz to 6GHz antenna structure adopts an orthogonal dual-polarized planar antenna. The antenna is arranged in the center, and for the first time, the entire aluminum plate is sintered at high temperature at one time before the metal part of the antenna is embedded in the antenna bearing panel. In this way, the overall spatial structure of the antenna is more reasonable, and more design space is left for other antennas.

[0078] Antenna half-wave dipole: The half-wave dipole is the basic radiation unit of the orthogonal antenna. The longer the wavelength, the larger the antenna half-wave dipole. Figure 7 This is a schematic diagram of a half-wave oscillator of a 5GHz to 6GHz oscillator structure antenna. The invention increases the gain by increasing the number of half-wave oscillators. The emission of multiple oscillators converges at the center, and the energy at the edge is weakened, thus achieving the purpose of flattening the radiation direction and concentrating the energy emission in the horizontal / vertical direction.

[0079] Compared with the prior art, the present invention has the following beneficial effects:

[0080] 1. The orthogonal antenna structure is more scientifically and reasonably arranged, the design is more compact, space-saving, and a variety of antenna materials are used, so that the mutual influence between different frequencies of various materials is smaller, achieving perfect structural fusion.

[0081] 2. The orthogonal structure is more compact, easy to install, more powerful, and has higher gain. Compared with antennas of the same size, it has better performance.

[0082] 3. The orthogonal structure solution successfully breaks through the technical bottleneck that existing technologies on the market cannot attack special links, cross-country drones and fixed-wing drones. (Interference and attack on physical drone types)

[0083] 4. The higher the antenna gain, the better the directivity and the more concentrated the energy.

[0084] Consumer level: O4+image transmission / channel transmission, etc.

[0085] Drones: ELRS series, FUTABA series, HGLRC series, DJIFPV digital image transmission system, TBS Black Sheep series, JR, FLYSKY series, Spektrum, FRSKY series, WFLY series, RadioLink series, JUMPER, ducted FPV series, Bee series, Jumper series, SIYIFM30 series, BETAFPV, Lightning, GEPRC series, McLaren, etc.

[0086] TBS UNIFY, JHEMCU, RUSH series, Panda series, HGLRC zeus, RUSHTANK, Magic Bee, Crazepony series, XF5805, Snail HD digital image transmission, E-Telecom EWR701U, etc.

[0087] Fixed wing: Hawa / Aspect / Range, etc.

[0088] For any FPV / fixed-wing aircraft with a speed of more than 200 kilometers per hour, it can be countered in seconds, and the effective range in open environments is ≥ 2 kilometers. It can easily deal with special unmanned aerial vehicles with analog source links, digital source links, any refresh rate, any adjustable power, and extremely fast frequency hopping.

[0089] 5. Effectively combat analog / digital sources and various types of special link drones.

[0090] 6. At the same time, multiple frequency bands have high gain, high sensitivity, and stable operation. It has the advantages of small size, light weight, durability, high precision, and high sensitivity. It can effectively minimize the size while ensuring performance, providing more possibilities for mass production and marketization of equipment.

[0091] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0092] It is not difficult for those skilled in the art to understand that the present invention includes any combination of the invention content and specific implementation methods of the above specification and the various parts shown in the drawings. Due to the limited space and to make the specification concise, the various schemes composed of these combinations are not described one by one. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0093] Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. Those skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-UAV antenna structure, characterized in that: The anti-UAV antenna structure adopts an orthogonal dual-polarization antenna, including: a reflector, two groups of orthogonal radiation units and a power distribution network circuit board installed on the reflector, and a radome sleeved on the outermost side, wherein: The two groups of orthogonal radiation units are installed on the front of the reflector, including: an 868MHz / 915MHz dual-band antenna, a 1.5GHz antenna, a 2.4GHz antenna and a 5.8GHz antenna, the 868MHz / 915MHz dual-band antenna is located on the left and right sides of the reflector and centered vertically, the 1.5GHz antenna is arranged vertically and centered, the 2.4GHz antenna is located at the four corners of the reflector, and the 5.8GHz antenna is arranged in the center; The power distribution network circuit board and a plurality of RF module cable probes are installed on the back of the reflector. The power distribution network circuit board is located in the center of the back of the reflector. The plurality of RF cable probes include: 868MHz / 915MHz RF cable connector, 1.5GHz RF cable connector, +2.4GHz RF cable connector, -2.4GHz RF cable connector, 5.8GHz RF cable connector, wherein: The 868MHz / 915MHz dual-band antenna adopts a T-shaped structure design. A vertical down conductor is connected in the center of both sides of the horizontal conductor, and the coaxial cable 868MHz / 915MHz RF cable connector is ±45° The 2.4GHz antenna is connected to the +2.4GHz RF cable connector +45° via a coaxial cable, and the 2.4GHz electromagnetic waves are vertically emitted via an orthogonal antenna; The 2.4GHz antenna is connected to the 2.4GHz RF cable connector via a coaxial cable, and the 2.4GHz electromagnetic waves are horizontally emitted via an orthogonal antenna; The 1.5GHz antenna is connected to the 1.5GHz RF cable connector at ±45° via a coaxial cable. The 1.5GHz antenna transmits through an orthogonal antenna signal group consisting of two symmetrical oscillators of the same shape and interfering with each other, and simultaneously transmits interference electromagnetic waves in a cross-shaped form; The 5.8GHz antenna is connected to the .8GHz RF cable connector +45° via a coaxial cable.

2. The anti-UAV antenna structure according to claim 1, characterized in that: The 868MHz / 915MHz dual-band antenna is an orthogonal antenna array composed of two symmetrical oscillators of the same shape and orthogonal interference with each other.

3. The anti-UAV antenna structure according to claim 1, characterized in that: The 1.5 GHz antenna is an orthogonal antenna array composed of two symmetrical oscillators with the same shape and orthogonal interference with each other.

4. The anti-UAV antenna structure according to claim 1, characterized in that: The 2.4 GHz antenna is an orthogonal antenna array composed of four symmetrical oscillators with the same shape and orthogonal interference with each other.

5. The anti-UAV antenna structure according to claim 1, characterized in that: The 5.8 GHz antenna is an orthogonal antenna array composed of 8 planar antenna symmetrical oscillators of the same shape and orthogonal interference with each other.

6. The anti-UAV antenna structure according to claim 1, characterized in that: The reflector is used as an antenna carrier plate. After the entire aluminum plate is sintered at high temperature for the first time, the metal part of the antenna is embedded in the antenna carrier plate.

7. The anti-UAV antenna structure according to claim 3, characterized in that: A 1.5 GHz coupler is further installed on the back of the reflector, and the 1.5 GHz coupler is connected to the 1.5 GHz antenna and the 1.5 GHz antenna element.

8. The anti-UAV antenna structure according to claim 4, characterized in that: A 2.4 GHz directional coupler is further installed on the back of the reflector, and the 2.4 GHz directional coupler is connected to the 2.4 GHz antenna and the 2.4 GHz antenna element.

9. The anti-UAV antenna structure according to claim 2, characterized in that: The power distribution network circuit board is connected to the 868MHz / 915MHz symmetrical antenna and the 868MHz / 915MHz antenna vibrator.

10. The anti-UAV antenna structure according to claim 2, characterized in that: The 868MHz / 915MHz dual-band antenna simultaneously transmits 868MHz / 915MHz dual-frequency electromagnetic waves, transmits orthogonal signals through an orthogonal antenna group composed of two symmetrical oscillators of the same shape and interfering with each other, and simultaneously transmits orthogonal electromagnetic waves in a cross-shaped manner.

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