Unmanned aerial vehicle multi-band interference antenna

Abstract

The utility model discloses a multi-band interference antenna for an unmanned aerial vehicle. The multi-band interference antenna comprises a mounting plate, a first antenna group, a second antenna group, a cable and an input connector, the first antenna group is located on the right side of the mounting plate, the second antenna group is located on the left side of the mounting plate, the first antenna group and the second antenna group are each composed of a plurality of antenna plates and a plurality of supporting pieces, the antenna plates are perpendicularly mounted on the mounting plate, the supporting pieces are connected with every two adjacent antenna plates, and the ends of the antenna plates are connected with the output end of the cable. The input end of the cable is connected with the input connector. The multi-band interference antenna composed of the first antenna group and the second antenna group can cover a plurality of communication bands which may be used by the unmanned aerial vehicle. The design of multi-band coverage can ensure that the interference antenna can effectively interfere with the unmanned aerial vehicle in various complex environments, and solves the problem that traditional unmanned aerial vehicle interference equipment is often limited to interfere or block unmanned aerial vehicle signals with specific frequencies, and the interference difficulty is large.

Description

Technical Field

[0001] The utility model relates to the technical field of antennas, in particular to a multi-band interference antenna for unmanned aerial vehicles. Background Art

[0002] In recent years, with the rapid development of science and technology, drone technology has made significant progress and is widely used in a variety of fields. From aerial photography, agricultural plant protection, and environmental monitoring to logistics and disaster relief, drones have demonstrated their unique advantages and enormous potential. However, some drone enthusiasts or criminals may use drones to invade privacy, illegally film, and interfere with civil aviation. This not only infringes on the legitimate rights and interests of others but also poses a serious threat to public safety.

[0003] Traditional drone jamming equipment is often designed to interfere with or block drone signals at specific frequencies. While a drone is in flight, its specific communication frequency is often difficult to accurately determine, making jamming more difficult. Utility Model Content

[0004] In response to the above-mentioned defects, the present invention proposes a multi-band jamming antenna for drones. The multi-band jamming antenna, which is composed of a first antenna group and a second antenna group, can cover multiple communication frequency bands that may be used by drones. This multi-band coverage design can ensure that the jamming antenna can effectively interfere with drones in various complex environments. The multi-band jamming antenna can simultaneously interfere with drones in these different frequency bands, improving the success rate and reliability of the jamming. At the same time, the multi-band coverage can also adapt to the development of future drone communication technology, ensuring that the jamming antenna still has good performance during long-term use, and solving the problem that traditional drone jamming equipment is often limited to jamming or blocking drone signals of specific frequencies, making jamming difficult.

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

[0006] A multi-band jamming antenna for unmanned aerial vehicles, comprising a mounting plate, a first antenna group, a second antenna group, a cable, and an input connector;

[0007] The first antenna group is located on the right side of the mounting plate, and the second antenna group is located on the left side of the mounting plate. The first antenna group and the second antenna group are both composed of multiple antenna boards and multiple supporting members. The antenna boards are vertically installed on the mounting plate, and the supporting members connect two adjacent antenna boards. The ends of the antenna boards are connected to the output ends of the cables, and the input ends of the cables are connected to the input connectors.

[0008] The antenna board of the first antenna group includes a first antenna, a second antenna, a third antenna, a sixth antenna and a seventh antenna;

[0009] The mounting plate is vertically connected to the first antenna, the second antenna, and the third antenna in sequence from front to back, the centers of gravity of the first antenna, the second antenna, and the third antenna are all located on the same straight line, and the support member is horizontally connected to the first antenna, the second antenna, and the third antenna;

[0010] The sixth antenna and the seventh antenna are both vertically mounted on the rear side of the mounting plate. The sixth antenna is connected to the right side of the first antenna via a support member, and the seventh antenna is connected to the left side of the first antenna via a support member.

[0011] The antenna board of the second antenna group includes a fourth antenna, a fifth antenna, and an eighth antenna, the fifth antenna being vertically mounted on the front side of the mounting board, the fourth antenna being vertically mounted on the rear side of the mounting board, and the fourth antenna and the fifth antenna being connected via a plurality of the supporting members;

[0012] The eighth antenna is mounted on an end of the fourth antenna that is away from the mounting plate.

[0013] The frequency range of the first antenna is 430-440MHz; the frequency range of the second antenna is 840-930MHz; the frequency range of the third antenna is 1170-1280MHz; the frequency range of the fourth antenna is 1550-1620MHz; the frequency range of the fifth antenna is 2400-2500MHz; the frequency range of the sixth antenna is 5150-5350MHz; the frequency range of the seventh antenna is 5650-5900MHz; the frequency range of the eighth antenna is 2400-2500MHz and 5150-5900MHz.

[0014] The distance between two adjacent antenna boards in the vertical direction is one quarter of the wavelength of one of the antenna boards.

[0015] The antenna plate is vertically polarized.

[0016] The typical gain of the antenna board is 6-10dBi.

[0017] The technical solution of the utility model may have the following beneficial effects:

[0018] 1. The multi-band jamming antenna, comprised of a first antenna group and a second antenna group, covers multiple communication frequency bands potentially used by drones. This multi-band coverage design ensures the jamming antenna can effectively jam drones in a variety of complex environments. The multi-band jamming antenna can simultaneously jam drones operating in different frequency bands, improving the success rate and reliability of the jamming. Furthermore, multi-band coverage adapts to future developments in drone communication technology, ensuring the jamming antenna maintains excellent performance over long-term use. This addresses the issue of traditional drone jamming equipment, which is often limited to jamming or blocking drone signals at specific frequencies, making jamming difficult.

[0019] 2. The support member connects two adjacent antenna panels, which can isolate and fix them, reducing the mutual interference between the antenna panels to a certain extent. The support member can also enhance the stability of the antenna panels, ensuring that each antenna panel can work normally in its specific position without position displacement due to external vibration or interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front view of an interference antenna according to one embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of an interference antenna according to one embodiment of the present invention;

[0022] Figure 3 This is the typical directional pattern of the utility model at 430-440MHz;

[0023] Figure 4 This is the typical directional pattern of the utility model in the range of 840-930MHz;

[0024] Figure 5 This is the typical directional pattern of the utility model in the range of 1550-1620MHz;

[0025] Figure 6 This is the typical directional pattern of the utility model in the range of 2400-5900MHz;

[0026] Among them, 1. Mounting plate; 2. First antenna group; 3. Second antenna group; 4. Cable; 5. Input connector; 6. Support; 21. First antenna; 22. Second antenna; 23. Third antenna; 24. Fourth antenna; 25. Fifth antenna; 26. Sixth antenna; 27. Seventh antenna; 28. Eighth antenna. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0028] In the description of the utility model, it is necessary to understand that the directions or position relations of the terms "length", "middle", "upper", "lower", "left", "right", "top" and "bottom" are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the utility model.

[0029] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0030] In the description of the utility model, it should be noted that, unless otherwise specified and limited, the terms "installation", "splicing" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection, it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements.

[0031] The utility model discloses an unmanned aerial vehicle multi-frequency band interference antenna. Figures 1 to 6

[0032] An unmanned aerial vehicle multi-frequency band interference antenna, comprising a mounting plate 1, a first antenna group 2, a second antenna group 3, a cable 4 and an input connector 5.

[0033] The first antenna group 2 is located on the right side of the mounting plate 1, the second antenna group 3 is located on the left side of the mounting plate 1, the first antenna group 2 and the second antenna group 3 are both composed of a plurality of antenna plates and a plurality of supporting pieces 6, the antenna plates are vertically installed on the mounting plate 1, the supporting pieces 6 are connected between two adjacent antenna plates, the end of the antenna plate is connected with the output end of the cable 4, and the input end of the cable 4 is connected with the input connector 5.

[0034] A plurality of antenna plates are vertically installed on the mounting plate 1, can form a specific radiation pattern in the vertical direction, so that the antenna provides more uniform interference signal coverage in the vertical direction, thereby better covering unmanned aerial vehicles of different heights.

[0035] ​The support member 6 connects two adjacent antenna boards, which can play the role of isolation and fixation, reducing the mutual interference between the antenna boards to a certain extent; and the support member 6 can also enhance the stability of the antenna boards, ensuring that each antenna board can work normally in its specific position without position displacement due to external vibration or interference.

[0036] Cable 4 serves as a channel for signal transmission, which can minimize the signal loss during transmission and ensure that the interference signal can be emitted with sufficient strength to effectively interfere with the drone.

[0037] It is worth noting that the multi-band jamming antenna, comprised of the first antenna group 2 and the second antenna group 3, can cover multiple communication frequency bands potentially used by drones. This multi-band coverage design ensures that the jamming antenna can effectively jam drones in a variety of complex environments. The multi-band jamming antenna can simultaneously jam drones operating in different frequency bands, improving the success rate and reliability of the jamming. Furthermore, multi-band coverage can adapt to future developments in drone communication technology, ensuring that the jamming antenna maintains good performance over long-term use. This addresses the issue of traditional drone jamming equipment, which is often limited to jamming or blocking drone signals at specific frequencies, making jamming difficult.

[0038] The antenna board of the first antenna group 2 includes a first antenna 21, a second antenna 22, a third antenna 23, a sixth antenna 26 and a seventh antenna 27;

[0039] The mounting plate 1 is vertically connected to the first antenna 21, the second antenna 22, and the third antenna 23 in sequence from front to back. The centers of gravity of the first antenna 21, the second antenna 22, and the third antenna 23 are all located on the same straight line. The support member 6 horizontally connects the first antenna 21, the second antenna 22, and the third antenna 23.

[0040] The sixth antenna 26 and the seventh antenna 27 are both vertically mounted on the rear side of the mounting plate 1 . The sixth antenna 26 is connected to the right side of the first antenna 21 through the support 6 , and the seventh antenna 27 is connected to the left side of the first antenna 21 through the support 6 .

[0041] The first antenna 21, second antenna 22, and third antenna 23 are connected vertically to the mounting plate 1, with their centers of gravity aligned. The sixth antenna 26 and seventh antenna 27 are located to the left and right of the first antenna 21, respectively. This layout allows for compact installation of multiple antennas within a limited space. Multiple antennas with different frequency bands can be integrated into a compact package to meet jamming requirements for various types of drones.

[0042] The use of support members 6 further enhances the stability of the antenna. When the device is subjected to external vibrations, wind or other external forces, this structure can minimize the shaking and displacement of the antenna, ensuring that each antenna always remains in the correct position and angle, thereby ensuring stable transmission of interference signals.

[0043] First antenna group 2 includes multiple antennas in different frequency bands, including first antenna 21, second antenna 22, third antenna 23, sixth antenna 26, and seventh antenna 27, each corresponding to a different frequency range. This multi-band design enables comprehensive jamming of drones. Antennas in different frequency bands can target different communication and control bands of drones, improving the success rate and effectiveness of jamming.

[0044] The antenna board of the second antenna group 3 includes a fourth antenna 24, a fifth antenna 25, and an eighth antenna 28. The fifth antenna 25 is vertically mounted on the front side of the mounting plate 1, and the fourth antenna 24 is vertically mounted on the rear side of the mounting plate 1. The fourth antenna 24 and the fifth antenna 25 are connected by a plurality of the supporting members 6.

[0045] The eighth antenna 28 is mounted on the end of the fourth antenna 24 away from the mounting plate 1 .

[0046] The fifth antenna 25 is mounted vertically on the front of the mounting plate 1, and the fourth antenna 24 is mounted vertically on the rear. This layout effectively utilizes the space in front and behind the mounting plate 1, allowing for a more rational arrangement of the antennas within the limited space. For multi-band jamming antennas, efficient space utilization is crucial, as multiple antennas with different frequency bands must be integrated to address various types of drones.

[0047] When the eighth antenna 28 is located at the end of the fourth antenna 24, the electric and magnetic fields of the two antennas can interact. Since antennas generate electromagnetic fields in the surrounding space during operation, the electromagnetic fields of adjacent antennas can, under certain conditions, be superimposed and reinforced. This arrangement of the fourth antenna 24 and the eighth antenna 28 allows the electromagnetic fields around them to synergize in the area near the end, producing a localized field enhancement effect.

[0048] The frequency range of the first antenna 21 is 430-440MHz; the frequency range of the second antenna 22 is 840-930MHz; the frequency range of the third antenna 23 is 1170-1280MHz; the frequency range of the fourth antenna 24 is 1550-1620MHz; the frequency range of the fifth antenna 25 is 2400-2500MHz; the frequency range of the sixth antenna 26 is 5150-5350MHz; the frequency range of the seventh antenna 27 is 5650-5900MHz; and the frequency range of the eighth antenna 28 is 2400-2500MHz and 5150-5900MHz.

[0049] This multi-band jamming antenna covers multiple frequency bands from 430-440MHz to 5650-5900MHz, and can meet the communication frequency band requirements of various common drones. For example, some small consumer drones may mainly use the 2.4GHz (2400-2500MHz) frequency band for communication, while some professional drones may use higher frequency bands such as 5.8GHz (5150-5900MHz). The jamming antenna can fully cover the communication frequency bands of these different types of drones, and can perform jamming regardless of the type of drone.

[0050] Because it covers multiple frequency bands, this multi-band jamming antenna significantly reduces the probability of missing drones. Even if a drone switches frequency bands between different communication modes or uses unusual frequency bands, the antenna is likely to interfere with it. For example, some intelligent drones may automatically switch communication bands based on environmental conditions to improve communication quality and anti-interference capabilities. The multi-band jamming antenna can respond to these frequency band changes in a timely manner, ensuring effective jamming of drones at all times.

[0051] The distance between two adjacent antenna boards in the vertical direction is one quarter of the wavelength of one of the antenna boards.

[0052] Because it's a multi-band jamming antenna, antenna panels in different frequency bands are spaced at a quarter of their wavelength. This reduces electromagnetic coupling between different frequency bands and minimizes mutual interference between them. When operating simultaneously in multiple frequency bands, each band can form an effective jamming beam at its appropriate vertical angle. These beams coordinate with each other in space, further optimizing the overall jamming antenna's radiation pattern. For example, the beam in one frequency band might focus on low- and mid-altitude interference, while the beam in another frequency band might focus on high-altitude interference. Together, they provide comprehensive coverage for drones at different flight altitudes.

[0053] When two antennas are too close together, strong electromagnetic coupling may occur between them, leading to signal crosstalk, gain reduction, and other problems. Therefore, maintaining a quarter-wavelength spacing can reduce the mutual coupling effect between antenna panels, thereby improving the performance of each antenna panel.

[0054] The antenna plate is vertically polarized.

[0055] Human-machine communications typically use multiple frequency bands for data transmission and control signal reception. Using vertically polarized antenna panels can better match the polarization of signals in the frequency bands commonly used by drones, making them more effective at jamming these bands. For example, when the jamming antenna shares the same polarization as the drone's communication signal, the jamming signal is more likely to couple to the drone's receiving antenna, enhancing the jamming effect.

[0056] When transmitting jamming signals, vertically polarized antenna panels can more concentratedly radiate energy in a specific direction, reducing energy scattering and waste. This allows vertically polarized jamming antennas to produce a stronger jamming field in the target direction at the same transmit power. For example, when jamming drones in a specific area, vertically polarized antennas can concentrate the jamming power at the altitude and azimuth where the drones are likely to appear, improving the efficiency of jamming power utilization.

[0057] For vertically polarized antenna panels, since their electric field vectors are perpendicular to the ground, ground reflections have a relatively small impact on their interference signals. This is because when vertically polarized waves reflect from the ground, the polarization characteristics of the reflected waves remain largely unchanged, and the reflection coefficient is relatively stable. In contrast, horizontally polarized signals may experience significant polarization changes after reflecting from the ground, thus affecting the interference effect.

[0058] The typical gain of the antenna board is 6-10dBi.

[0059] Higher gain means the antenna can more efficiently convert input power into radiated power, thereby emitting a stronger jamming signal in a specific direction. Compared to low-gain antennas, this solution's multi-band UAV jamming antenna can significantly expand the coverage of the jamming signal and increase the effective range of the jamming system.

[0060] Antenna panels with higher gain usually have better directionality and can concentrate interference signals in a specific direction, which can interfere with target drones more accurately, reduce electromagnetic radiation in other irrelevant directions, and reduce interference with the surrounding environment and other electronic equipment.

[0061] Because high-gain antennas can provide stronger interference signals, in some cases, the number and complexity of other components in the interference system can be reduced, thereby reducing the cost, volume and power consumption of the system.

[0062] In addition, the high-gain antenna can reduce the loss of signals in the transmission process, and improve the overall efficiency of the system.

[0063] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only for the purpose of explaining the principles of the present application, and cannot be interpreted in any way as a limitation on the scope of protection of the present application. Based on the explanations here, those skilled in the art can think of other specific embodiments of the present application without creative labor, and these embodiments will fall within the scope of protection of the present application.

Claims

1. A multi-band jamming antenna for drones, characterized in that: Includes a mounting plate, a first antenna group, a second antenna group, cables, and an input connector; The first antenna group is located on the right side of the mounting plate, and the second antenna group is located on the left side of the mounting plate. The first antenna group and the second antenna group are both composed of multiple antenna boards and multiple supporting members. The antenna boards are vertically installed on the mounting plate, and the supporting members connect two adjacent antenna boards. The ends of the antenna boards are connected to the output ends of the cables, and the input ends of the cables are connected to the input connectors.

2. The multi-band jamming antenna for drones according to claim 1, characterized in that: The antenna board of the first antenna group includes a first antenna, a second antenna, a third antenna, a sixth antenna and a seventh antenna; The mounting plate is vertically connected to the first antenna, the second antenna, and the third antenna in sequence from front to back, the centers of gravity of the first antenna, the second antenna, and the third antenna are all located on the same straight line, and the support member is horizontally connected to the first antenna, the second antenna, and the third antenna; The sixth antenna and the seventh antenna are both vertically mounted on the rear side of the mounting plate. The sixth antenna is connected to the right side of the first antenna via a support member, and the seventh antenna is connected to the left side of the first antenna via a support member.

3. The multi-band jamming antenna for unmanned aerial vehicles according to claim 2, characterized in that: The antenna board of the second antenna group includes a fourth antenna, a fifth antenna, and an eighth antenna, the fifth antenna being vertically mounted on the front side of the mounting board, the fourth antenna being vertically mounted on the rear side of the mounting board, and the fourth antenna and the fifth antenna being connected via a plurality of the supporting members; The eighth antenna is mounted on an end of the fourth antenna that is away from the mounting plate.

4. The multi-band jamming antenna for unmanned aerial vehicles according to claim 3, characterized in that: The frequency range of the first antenna is 430-440MHz; the frequency range of the second antenna is 840-930MHz; the frequency range of the third antenna is 1170-1280MHz; the frequency range of the fourth antenna is 1550-1620MHz; the frequency range of the fifth antenna is 2400-2500MHz; the frequency range of the sixth antenna is 5150-5350MHz; the frequency range of the seventh antenna is 5650-5900MHz; the frequency range of the eighth antenna is 2400-2500MHz and 5150-5900MHz.

5. The multi-band jamming antenna for drones according to claim 1, characterized in that: The distance between two adjacent antenna boards in the vertical direction is one quarter of the wavelength of one of the antenna boards.

6. The multi-band jamming antenna for drones according to claim 1, characterized in that: The antenna plate is vertically polarized.

7. The multi-band jamming antenna for drones according to claim 1, characterized in that: The typical gain of the antenna board is 6-10dBi.

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