Antenna assembly, wireless detection device, drone detection device, and drone countermeasure device

Abstract

The embodiment of the present application provides an antenna assembly, a wireless detection device, a UAV detection device and a UAV countermeasure device, the antenna assembly comprises: a transmitting unit, a first directional receiving antenna and a second directional receiving antenna, the transmitting unit has opposite first and second sides, the first directional receiving antenna is arranged on the first side of the transmitting unit, and the second directional receiving antenna is arranged on the second side of the transmitting unit. The embodiment of the present application can improve the azimuth recognition effect on the measured object.

Description

Technical Field

[0001] This application relates to the field of drone countermeasures technology, and more particularly to antenna assemblies and drone countermeasures equipment. Background Technology

[0002] Currently, with the booming drone market, more and more low-altitude, slow-moving, and small aircraft are emerging. In areas with high security requirements (such as prisons and important government locations), aircraft are strictly prohibited from approaching, passing through, or flying over them. To protect the security of controlled areas and prevent aircraft from entering, it is necessary to install relevant equipment to detect drones. Improving the accuracy of location identification of the detected objects is a problem that urgently needs to be solved. Utility Model Content

[0003] In view of this, embodiments of this application provide an antenna assembly, a wireless detection device, a drone detection device, and a drone countermeasure device, which can improve the performance of detecting the object being tested.

[0004] In a first aspect, embodiments of this application provide an antenna assembly, the antenna assembly comprising:

[0005] A transmitting unit having opposing first and second sides;

[0006] A first directional receiving antenna is disposed on a first side of the transmitting unit;

[0007] The second directional receiving antenna is disposed on the second side of the transmitting unit.

[0008] Optionally, the angle between the maximum receiving direction of the first directional receiving antenna and the maximum receiving direction of the second directional receiving antenna is greater than 0 degrees and less than 180 degrees.

[0009] Optionally, the angle between the direction in which the interface end of the first directional receiving antenna extends toward the receiving end of the first directional receiving antenna and the direction in which the interface end of the second directional receiving antenna extends toward the receiving end of the second directional receiving antenna is greater than 0 degrees and less than 180 degrees.

[0010] Optionally, the first directional receiving antenna and the second directional receiving antenna are symmetrical to each other.

[0011] Optionally, the transmitting unit has a first side facing a first side and a second side facing a second side; the distance between the receiving end of the first directional receiving antenna and the first side of the transmitting unit is greater than the distance between the interface end of the first directional receiving antenna and the first side of the transmitting unit;

[0012] The distance between the receiving end of the second directional receiving antenna and the second side of the transmitting unit is greater than the distance between the interface end of the second directional receiving antenna and the second side of the transmitting unit.

[0013] Optionally, the transmitting unit includes one or more directional transmitting antennas;

[0014] The distance between the interface end of the first directional receiving antenna and the interface end of the directional transmitting antenna is less than the distance between the interface end of the first directional receiving antenna and the radiating end of the directional transmitting antenna.

[0015] And / or,

[0016] The distance between the interface end of the second directional receiving antenna and the interface end of the directional transmitting antenna is less than the distance between the interface end of the second directional receiving antenna and the radiating end of the directional transmitting antenna.

[0017] Optionally, the projection of the receiving end of the first directional receiving antenna onto the directional transmitting antenna is located between the interface end of the directional transmitting antenna and the radiating end of the directional transmitting antenna.

[0018] And / or,

[0019] The projection of the receiving end of the second directional receiving antenna onto the directional transmitting antenna is located between the interface end of the directional transmitting antenna and the radiating end of the directional transmitting antenna.

[0020] Optionally, the transmitting unit includes one or more antenna plates, and each antenna plate is provided with one or more directional transmitting antennas;

[0021] The antenna plates are arranged in parallel at intervals, and the first directional receiving antenna, the multiple antenna plates, and the second directional receiving antenna are arranged sequentially along a first direction, which is perpendicular to the extension direction of each antenna plate.

[0022] Secondly, embodiments of this application provide a wireless detection device, which includes the aforementioned antenna assembly.

[0023] Thirdly, embodiments of this application provide a drone detection device, which includes the aforementioned antenna assembly.

[0024] Fourthly, embodiments of this application provide a drone countermeasure device, which includes the aforementioned antenna assembly.

[0025] This application provides an antenna assembly, a wireless detection device, and a drone countermeasure device. By placing the transmitting unit between the first directional receiving antenna and the second directional receiving antenna, the distance between the first directional receiving antenna and the second directional receiving antenna can be increased. This can prevent the difference in the received signal strength of the two directional receiving antennas of the antenna assembly from being too small, which would make it difficult to determine the location of the object being measured, thereby improving the performance of detecting the object being measured.

[0026] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit the disclosure of the embodiments of this application. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1a This is a schematic diagram of the antenna assembly in a countermeasure device for related technologies.

[0029] Figure 1b yes Figure 1a A schematic diagram of the radiation range of the directional receiving antenna in the antenna assembly.

[0030] Figure 2 This is a schematic diagram of an antenna assembly provided in one embodiment of this application.

[0031] Figure 3 yes Figure 2 A schematic diagram of the radiation range of the directional receiving antenna in the antenna assembly.

[0032] Figure 4 This is a schematic diagram of an antenna assembly provided in another embodiment of this application.

[0033] Figure 5 yes Figure 4 A schematic diagram of the radiation range of the directional receiving antenna in the antenna assembly.

[0034] Figures 6a to 6d These are schematic diagrams of the antenna assembly from different perspectives in some embodiments of this application.

[0035] Figure 7 This is a schematic block diagram of a wireless detection device provided in an embodiment of this application.

[0036] Figure 8 This is a schematic block diagram of a drone countermeasure device provided in one embodiment of this application.

[0037] Explanation of reference numerals in the attached figures:

[0038] 11, 12, Directional receiving antennas;

[0039] 100. Antenna assembly; 110. Transmitting unit; 111. First side; 1101. First side face; 112. Second side; 1102. Second side face; 113. Directional transmitting antenna; 1131. First directional transmitting antenna; 1132. Second directional transmitting antenna; 1133. Third directional transmitting antenna; 1134. Fourth directional transmitting antenna; 113a. Interface end of directional transmitting antenna; 113b. Radiation end of directional transmitting antenna; 120. First directional receiving antenna; 121. Receiver end of first directional receiving antenna; 122. Interface end of first directional receiving antenna; 130. Second directional receiving antenna; 131. Receiver end of second directional receiving antenna; 132. Interface end of second directional receiving antenna. Detailed Implementation

[0040] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0041] In the description of the embodiments of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the invention. In addition, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0043] The following detailed description, with reference to the accompanying drawings, outlines some embodiments of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0044] like Figure 1a The diagram shows a schematic of an antenna assembly of related technology. The antenna assembly includes two parallel, spaced-apart directional receiving antennas 11 and 12 to receive signals from the object under test. Figure 1b The diagram shows the radiation range of the directional receiving antenna 11 (indicated by the dashed line in the figure, the same below) and the radiation range of the directional receiving antenna 12 in the antenna assembly. There is a significant overlap between the radiation ranges of the directional receiving antenna 11 and the directional receiving antenna 12. When a drone or other object under test is within or near the radiation range of either the directional receiving antenna 11 or the directional receiving antenna 12, both antennas can receive the signal from the drone or other object. However, if the drone or other object under test is within the overlapping portion of the radiation ranges of the directional receiving antennas 11 and 12, the received signal strengths from the directional receiving antennas 11 and 12 will be quite similar, making it impossible to determine which antenna the object is closer to, resulting in poor orientation recognition of the object.

[0045] To improve the location recognition effect of the measured object, this application provides an antenna assembly 100, a wireless detection device, a drone detection device, and a drone countermeasure device.

[0046] The antenna assembly 100 provided in this application embodiment can be applied to a wireless detection device, which can detect the location of a detected object. For example, the wireless detection device includes, but is not limited to, at least one of the following: aircraft (such as a drone) detection device, bird detection device, vehicle detection device, and ship detection device. Specifically, the wireless detection device can be a drone detection device, mainly used to detect the location of the drone. Exemplarily, the antenna assembly 100 can be applied to a drone countermeasure device, which can detect the location of the drone and transmit radio signals to the detected location to counter the drone.

[0047] Reference Figure 2 , Figure 4 As shown, the antenna assembly 100 provided in this application embodiment includes: a transmitting unit 110, a first directional receiving antenna 120, and a second directional receiving antenna 130.

[0048] Both the first directional receiving antenna 120 and the second directional receiving antenna 130 are directional receiving antennas, and will be collectively referred to as directional receiving antennas below. The transmitting unit 110 has a first side 111 and a second side 112 facing each other. The first directional receiving antenna 120 is disposed on the first side 111 of the transmitting unit 110, and the second directional receiving antenna 130 is disposed on the second side 112 of the transmitting unit 110. Optionally, the transmitting unit 110 has a first side 1101 facing the first side 111 and a second side 1102 facing the second side 112. The first directional receiving antenna 120 may be spaced apart from the first side 1101 of the transmitting unit 110, and the second directional receiving antenna 130 may be spaced apart from the second side 1102 of the transmitting unit 110. Of course, it is not limited to this. For example, one end of the first directional receiving antenna 120 can be connected to the first side 1101 of the transmitting unit 110, and / or one end of the second directional receiving antenna 130 can be connected to the second side 1102 of the transmitting unit 110.

[0049] The first directional receiving antenna 120 and the second directional receiving antenna 130 each have a certain radiation range, and the receiving sensitivity of the directional receiving antennas varies at different locations within their radiation range. When the object being measured is closer to one of the directional receiving antennas, the received signal strength of that antenna is greater than that of the other directional receiving antenna. By comparing the energy received by the first directional receiving antenna 120 and the energy received by the second directional receiving antenna 130, the location of the object being measured, such as a drone, can be determined.

[0050] Taking a drone as an example, the energy of the wireless signal received by the first directional receiving antenna 120 from the drone or other object under test, and the energy of the wireless signal received by the second directional receiving antenna 130 from the drone or other object under test, can be obtained. The location of the drone or other object under test can be determined based on the energy received by the first directional receiving antenna 120 and the second directional receiving antenna 130. For example, the energy received by the directional receiving antenna can be characterized by signal strength. It should be noted that the embodiments of this application do not limit the specific algorithm or positioning method used to determine the location of the object under test; it is sufficient that the location of the object under test can be derived based on the energy received by the first directional receiving antenna 120 and the second directional receiving antenna 130.

[0051] For example, if the object being measured is a drone, and the energy received by the first directional receiving antenna 120 is greater than the energy received by the second directional receiving antenna 130, it can be determined that the location of the drone is closer to the first directional receiving antenna 120. For example, Figure 2Taking the shown perspective as an example, if the signal strength received by the first directional receiving antenna 120 is stronger than that received by the second directional receiving antenna 130, then the object being measured is determined to be in a relatively high position. Similarly, when the energy received by the first directional receiving antenna 120 is less than the energy received by the second directional receiving antenna 130, it can be determined that the location of the drone is closer to the second directional receiving antenna 130. In some cases, if the energy received by the first directional receiving antenna 120 is equal to the energy received by the second directional receiving antenna 130, it can be determined that the drone is located on a first plane P1, which is the plane of symmetry between the first directional receiving antenna 120 and the second directional receiving antenna 130.

[0052] By placing the transmitting unit 110 between the first directional receiving antenna 120 and the second directional receiving antenna 130, the distance between the first directional receiving antenna 120 and the second directional receiving antenna 130 is increased. Please refer to... Figure 1b , Figure 2 and Figure 3 Compared to the overlapping portion of the radiation ranges of directional receiving antenna 11 and directional receiving antenna 12 in related technology antenna assemblies, the overlapping portion of the radiation ranges of the first directional receiving antenna 120 and the second directional receiving antenna 130 in the antenna assembly 100 of this application embodiment is smaller. This reduces the probability that the measured object, such as a drone, is within the overlapping radiation range, thus preventing the received signal strengths of the multiple directional receiving antennas of the antenna assembly 100 from being too similar, thereby improving the orientation recognition effect of the measured object. Furthermore, precisely because the overlapping reception range between the two directional receiving antennas (i.e., the first directional receiving antenna 120 and the second directional receiving antenna 130) is reduced, when determining the orientation of a drone, if the drone approaches either directional receiving antenna, the signal strength received by that directional receiving antenna is significantly higher than that of the other directional receiving antenna. This enhances the signal difference between the two directional receiving antennas, making it easier to determine the drone's orientation.

[0053] Furthermore, the location of the two directional receiving antennas on either side of the transmitting unit 110 in this embodiment has the following advantages: the transmitting unit 110 can include one or more directional transmitting antennas 113. If the directional receiving antennas are placed in the gap between any two directional transmitting antennas 113, the directional receiving antennas will inevitably face the directional transmitting antennas 113, thus affecting the receiving performance of the directional receiving antennas. However, in this embodiment, the two directional receiving antennas are placed on the outermost side of all the directional transmitting antennas 113, so the directional receiving antennas face outwards, and the directional transmitting antennas 113 have no impact on the receiving performance of the directional receiving antennas, thereby further improving the detection performance.

[0054] In some embodiments, the operating frequency band of the first directional receiving antenna 120 is at least partially the same as that of the second directional receiving antenna 130, such as the operating frequency bands of the first directional receiving antenna 120 and the second directional receiving antenna 130 being the same, thereby ensuring that the first directional receiving antenna 120 and the second directional receiving antenna 130 can simultaneously detect the same object. For example, assuming that the operating frequency bands of the first directional receiving antenna 120 and the second directional receiving antenna 130 both include the 2.4 GHz (gigahertz) band and the 5.8 GHz band, then both the first directional receiving antenna 120 and the second directional receiving antenna 130 can receive the received signals of the same UAV with a communication frequency band of 2.4 GHz or 5.8 GHz, thereby enabling the determination of the UAV's location based on the received signal strength of the first directional receiving antenna 120 and the second directional receiving antenna 130.

[0055] For example, the maximum receiving direction F1 of the first directional receiving antenna 120 and the maximum receiving direction F2 of the second directional receiving antenna 130 are on the same plane, which intersects, for example, the transmitting unit 110. That is, the maximum receiving direction F1 of the first directional receiving antenna 120 and the maximum receiving direction F2 of the second directional receiving antenna 130 are coplanar. This arrangement is beneficial for eliminating the influence of other irrelevant factors besides the object's orientation on the difference in received signal strength between the two directional receiving antennas when calculating the orientation of the measured object, such as a drone, thus making the orientation detection results more accurate.

[0056] Optional, such as Figure 2 As shown, the first directional receiving antenna 120 is parallel to the second directional receiving antenna 130. Or as... Figure 4 As shown, the first directional receiving antenna 120 and the second directional receiving antenna 130 are not parallel.

[0057] In some implementations, please refer to Figure 4 The angle between the direction in which the interface end 122 of the first directional receiving antenna 120 extends towards the receiving end 121 of the first directional receiving antenna 120 and the direction in which the interface end 132 of the second directional receiving antenna 130 extends towards the receiving end 131 of the second directional receiving antenna 130 is greater than 0 degrees and less than 180 degrees. Wherein, if both the first directional receiving antenna 120 and the second directional receiving antenna 130 are PCB antennas, then the first directional receiving antenna 120 and the second directional receiving antenna 130 are not parallel.

[0058] The receiving end of the directional receiving antenna can be the end used to receive electromagnetic waves from the air; that is, the electromagnetic waves enter the directional receiving antenna from the receiving end and are converted into guided waves. The interface end of the directional receiving antenna can be the end equipped with an interface for connecting to the radio frequency board. In this embodiment, the direction of extension of the directional receiving antenna can be defined by the positions of the receiving end and the interface end. It should be noted that... Figure 4 The positions of the receiving end and interface end of the directional receiving antenna are only examples and are not intended to be specific limitations. For example, the interface end may not be located at the end of the directional receiving antenna, but may be located in the middle area of ​​the directional receiving antenna.

[0059] like Figure 4 As shown, the transmitting unit 110 has a first side 1101 facing a first side 111 and a second side 1102 facing a second side 112. The angle between the first directional receiving antenna 120 and the first side 1101 of the transmitting unit 110 is angle A, and the angle between the second directional receiving antenna 130 and the second side 1102 of the transmitting unit 110 is angle B. The sum of angles A and B is greater than 0 degrees and less than 180 degrees. As one embodiment, angles A and B can be set to be equal, which helps to simplify the calculation process of the orientation of the measured object. Of course, angles A and B can also be set to be unequal, and the orientation of the measured object can be calculated based on the mapping relationship between the received signal strength and the size of the angle. This is not limited here.

[0060] Please combine Figure 2 See Figure 3 When the first directional receiving antenna 120 and the second directional receiving antenna 130 are parallel, the maximum receiving direction F1 of the first directional receiving antenna 120 is parallel to the maximum receiving direction F2 of the second directional receiving antenna 130, such that the angle between the maximum receiving direction F1 of the first directional receiving antenna 120 and the maximum receiving direction F2 of the second directional receiving antenna 130 is equal to 0 degrees.

[0061] Please combine Figure 4 See Figure 5 When the first directional receiving antenna 120 and the second directional receiving antenna 130 are not parallel, the maximum receiving direction F1 of the first directional receiving antenna 120 and the maximum receiving direction F2 of the second directional receiving antenna 130 are not parallel.

[0062] The maximum receiving direction of the directional receiving antenna can be the direction pointed to by the main lobe (main beam) of the directional receiving antenna, such as the central axis of the directional receiving antenna.

[0063] In some implementations, please refer to Figure 5The angle between the maximum receiving direction F1 of the first directional receiving antenna 120 and the maximum receiving direction F2 of the second directional receiving antenna 130 is greater than 0 degrees and less than 180 degrees. For example, the angle between the maximum receiving direction F1 of the first directional receiving antenna 120 and the maximum receiving direction F2 of the second directional receiving antenna 130 is greater than or equal to 10 degrees and less than or equal to 120 degrees. Optionally, the angle between the maximum receiving direction F1 of the first directional receiving antenna 120 and the maximum receiving direction F2 of the second directional receiving antenna 130 can be greater than or equal to 30 degrees and less than or equal to 90 degrees. Of course, the angle between the maximum receiving direction F1 of the first directional receiving antenna 120 and the maximum receiving direction F2 of the second directional receiving antenna 130 can also be set to other degrees between 0 degrees and 180 degrees, which is not limited here.

[0064] It should be noted that, in order to avoid an excessive gap between the radiation range of the first directional receiving antenna 120 and the radiation range of the second directional receiving antenna 130, which would result in low signal strength for both antennas when the tested object, such as a drone, is near the angle bisector between the maximum receiving directions F1 and F2, the angle between the maximum receiving directions F1 and F2 of the first directional receiving antenna 120 and the second directional receiving antenna 130 is less than a set threshold, for example, less than 135 degrees, to ensure that the tested object, such as a drone, can receive a strong signal when it approaches the antenna assembly 100 from any direction.

[0065] Please see Figure 5 By setting the angle between the maximum receiving direction F1 of the first directional receiving antenna 120 and the maximum receiving direction F2 of the second directional receiving antenna 130 to be greater than 0 degrees and less than 180 degrees, the overlap between the radiation range of the first directional receiving antenna 120 and the radiation range of the second directional receiving antenna 130 can be reduced. This reduces the probability that the measured object, such as a drone, is within the overlapping radiation range, thus preventing the received signal strengths of the multiple directional receiving antennas of the antenna assembly 100 from being too similar, thereby improving the orientation recognition effect of the measured object.

[0066] Please see Figure 5 When the object being measured is located closer to the first directional receiving antenna 120, the energy received by the first directional receiving antenna 120 is significantly greater than the energy received by the second directional receiving antenna 120, that is... Figure 5 In the embodiment shown, the energy received by the first directional receiving antenna 120 and the energy received by the second directional receiving antenna 130 have a larger difference, which can more accurately determine the location of the object being measured, thereby improving the sensitivity of the antenna assembly 100 to the location detection of objects such as drones.

[0067] In some embodiments, the first directional receiving antenna 120 and the second directional receiving antenna 130 are symmetrical to each other. For example, the first directional receiving antenna 120 and the second directional receiving antenna 130 are symmetrically arranged on both sides of the transmitting unit 110. For instance, the shape and structure of the first directional receiving antenna 120 are the same as those of the second directional receiving antenna 130; the angle A between the first directional receiving antenna 120 and the first side 111 of the transmitting unit 110 is equal to the angle B between the second directional receiving antenna 130 and the second side 112 of the transmitting unit 110; and the operating frequency bands of the first directional receiving antenna 120 and the second directional receiving antenna 130 are the same. This ensures that the receiving patterns, gain, and phase response characteristics of the first directional receiving antenna 120 and the second directional receiving antenna 130 are consistent. For example, the difference in response to the same object is only caused by the orientation of the object, rather than by hardware differences between the first directional receiving antenna 120 and the second directional receiving antenna 130 themselves or by differences in the influence of environmental factors on the two directional receiving antennas, thereby ensuring the accuracy of detecting the orientation of the object.

[0068] In some implementations, such as Figure 4 As shown, the distance L11 between the receiving end 121 of the first directional receiving antenna 120 and the first side surface 1101 of the transmitting unit 110 is greater than the distance L12 between the interface end 122 of the first directional receiving antenna 120 and the first side surface 1101 of the transmitting unit 110. In this embodiment, the first directional receiving antenna 120 is tilted relative to the transmitting unit 110, and the maximum receiving direction F1 of the first directional receiving antenna 120 is deflected at a certain angle away from the transmitting unit 110. This is equivalent to the receiving end 121 of the first directional receiving antenna 120 being further away from the transmitting unit 110 along the first direction.

[0069] Similarly, the distance L21 between the receiving end 131 of the second directional receiving antenna 130 and the second side surface 1102 of the transmitting unit 110 is greater than the distance L22 between the interface end 132 of the second directional receiving antenna 130 and the second side surface 1102 of the transmitting unit 110. The second directional receiving antenna 130 is tilted relative to the transmitting unit 110, and the maximum receiving direction F2 of the second directional receiving antenna 130 is deflected at a certain angle away from the transmitting unit 110. This is equivalent to the receiving end 131 of the second directional receiving antenna 130 being further away from the transmitting unit 110 along the first direction.

[0070] In this embodiment, the two directional receiving antennas are tilted outward relative to the transmitting unit 110, which can further reduce the overlap of the radiation range of the two directional receiving antennas and increase the receiving range of the entire antenna assembly, thereby expanding the detection range of the object being measured.

[0071] In some implementations, such as Figure 4 or Figures 6a to 6d As shown, the transmitting unit 110 includes one or more directional transmitting antennas 113. These directional transmitting antennas 113 are mounted on one or more antenna plates. For example, the directional transmitting antennas 113 are used to transmit drone jamming signals, which can be used to counter drones.

[0072] In some embodiments, the transmitting unit 110 includes one or more antenna plates, each antenna plate having one or more directional transmitting antennas 113.

[0073] For example, the multiple antenna plates of the transmitting unit 110 can be arranged in parallel at intervals. For instance, such as... Figures 6a to 6d As shown, the transmitting unit 110 includes a first directional transmitting antenna 1131, a second directional transmitting antenna 1132, a third directional transmitting antenna 1133, and a fourth directional transmitting antenna 1134. The antenna plates containing the first directional transmitting antenna 1131 and / or the antenna plates containing the second directional transmitting antenna 1132, the third directional transmitting antenna 1133, and the fourth directional transmitting antenna 1134 are arranged in parallel intervals to reduce interference between the multiple directional transmitting antennas. It is understood that the antenna plates of the transmitting unit 110 are all positioned between the first directional receiving antenna 120 and the second directional receiving antenna 130 to prevent the directional transmitting antenna 113 from transmitting interference signals towards the first directional receiving antenna 120 and the second directional receiving antenna 130, thereby affecting reception performance.

[0074] For example, multiple antenna plates are arranged in parallel at intervals, and the first directional receiving antenna 120, the multiple antenna plates, and the second directional receiving antenna 130 are arranged sequentially along a first direction. The first direction is perpendicular to the extending direction of each antenna plate. Figures 6a to 6d As shown, a first directional receiving antenna 120, multiple antenna plates, and a second directional receiving antenna 130 are arranged sequentially along a first direction. The first directional receiving antenna 120 is spaced apart from the first layer of antenna plates (the antenna plate containing the first directional transmitting antenna 1131 and / or the antenna plate containing the second directional transmitting antenna 1132), and the second directional receiving antenna 130 is spaced apart from the last layer of antenna plates (the antenna plate containing the fourth directional transmitting antenna 1134). Increasing the distance between the first directional receiving antenna 120 and the second directional receiving antenna 130 can reduce the overlap between the radiation ranges of the first directional receiving antenna 120 and the second directional receiving antenna 130. It can also reduce the impact of the directional transmitting antenna 113 on the receiving performance of the first directional receiving antenna 120 and the second directional receiving antenna 130, improving the accuracy of azimuth detection.

[0075] Regarding the specific configuration of each directional transmitting antenna 113, for example, Figure 4 , Figures 6a to 6d As shown, the first directional transmitting antenna 1131 and the second directional transmitting antenna 1132 are mounted on two antenna plates located on the same plane, while the third directional transmitting antenna 1133 and the fourth directional transmitting antenna 1134 are each mounted on an independent antenna plate. Furthermore, the radiating ends 113b of all directional transmitting antennas 113 point in the same direction, i.e., they all point forward.

[0076] Optionally, in the arrangement direction of the first directional receiving antenna 120 and the second directional receiving antenna 130, the operating frequency band corresponding to the directional transmitting antenna 113 decreases sequentially.

[0077] For example, such as Figure 6a or Figure 6b As shown, the first directional transmitting antenna 1131 and the second directional transmitting antenna 1132 operate in the 5GHz-6GHz frequency band. For example, one of the first directional transmitting antenna 1131 and the second directional transmitting antenna 1132 is used to transmit a 5.2GHz signal, and the other is used to transmit a 5.8GHz signal. The third directional transmitting antenna 1133 operates in the 2.4GHz frequency band, and the fourth directional transmitting antenna 1134 operates in the 0.9GHz frequency band. The directional transmitting antennas 1133 corresponding to different operating frequency bands are arranged at intervals, which can reduce mutual interference, improve the quality of the transmitted interference signal, and enhance the countermeasure effect.

[0078] In some implementations, the operating frequency band corresponding to the first directional receiving antenna 120 and / or the operating frequency band corresponding to the second directional receiving antenna 130 overlaps with the operating frequency band (such as the 2.4 GHz band or the 5.8 GHz band) of at least one directional transmitting antenna 113 in the transmitting unit 110. This allows the transmitting unit 110 to transmit interference signals of the same frequency band after obtaining the location of the UAV in the corresponding communication frequency band based on the received signal, thereby achieving precise countermeasures against the UAV.

[0079] For example, please refer to Figure 4The distance between the interface end 122 of the first directional receiving antenna 120 and the interface end 113a of the directional transmitting antenna 113 is less than the distance between the interface end 122 of the first directional receiving antenna 120 and the radiating end 113b of the directional transmitting antenna 113. And / or, the distance between the interface end 132 of the second directional receiving antenna 130 and the interface end 113a of the directional transmitting antenna 113 is less than the distance between the interface end 132 of the second directional receiving antenna 130 and the radiating end 113b of the directional transmitting antenna 113. Wherein, along the extension direction of the antenna plate, the interface ends 122 of the first directional receiving antenna 120 and 132 of the second directional receiving antenna 130 are both far from the radiating end 113b of the directional transmitting antenna 113 (e.g., the first directional transmitting antenna 1131, the second directional transmitting antenna 1132, the third directional transmitting antenna 1133, and the fourth directional transmitting antenna 1134). Assuming that the directional transmitting antenna 113 transmits interference signals forward, the first directional receiving antenna 120 and the second directional receiving antenna 130 are positioned relatively far back from the radiating end 113b.

[0080] By positioning the directional receiving antenna away from the radiating end 113b of the directional transmitting antenna 113, the influence of the directional transmitting antenna 113 on the directional receiving antenna can be reduced, preventing the reception performance of the directional receiving antenna from being degraded due to interference from the directional transmitting antenna 113, thereby improving the accuracy of azimuth detection. For example, the direction in which the directional transmitting antenna 113 transmits UAV jamming signals is from the interface end 113a of the directional transmitting antenna 113 towards the radiating end 113b of the directional transmitting antenna 113. Since the radiation direction of the directional transmitting antenna 113 has a radiation angle, and the frequency bands of the directional receiving antenna overlap with those of the directional transmitting antenna 113, if the directional receiving antenna is positioned away from the radiating end 113b of the directional transmitting antenna 113, the influence of the directional transmitting antenna 113 on the directional receiving antenna can be reduced. Furthermore, since the radiation range of the directional transmitting antenna 113 has a certain angle, the closer the directional receiving antenna is to the radiating end 113b of the directional transmitting antenna 113, the more likely the directional receiving antenna is to affect the transmission of the jamming signal. Therefore, in this embodiment, setting the directional receiving antenna to a position relatively close to the interface end 113a of the directional transmitting antenna 113 (i.e., relatively far from the radiating end 113b of the directional transmitting antenna 113) can also reduce the influence of the directional receiving antenna on the interference signal.

[0081] In one implementation, please refer to Figure 4The projection of the receiving end 121 of the first directional receiving antenna 120 onto the directional transmitting antenna 113 is located between the interface end 113a and the radiating end 113b of the directional transmitting antenna 113. That is, along the extension direction of the antenna plate, the distance between the receiving end 121 of the first directional receiving antenna 120 and the radiating end 113b of the directional transmitting antenna 113 is relatively large. Similarly, the projection of the receiving end 131 of the second directional receiving antenna 130 onto the directional transmitting antenna 113 is located between the interface end 113a and the radiating end 113b of the directional transmitting antenna 113. That is, along the extension direction of the antenna plate, the distance between the receiving end 131 of the second directional receiving antenna 130 and the radiating end 113b of the directional transmitting antenna 113 is relatively large.

[0082] Specifically, the interface ends of the two directional receiving antennas are located near the interface end 113a of the directional transmitting antenna 113, and the receiving end of the directional receiving antenna is also relatively far away from the radiating end 113b of the directional transmitting antenna 113. That is, the length of the directional receiving antenna is shorter than the length of the directional transmitting antenna 113, which makes it easier to set the directional receiving antenna at a position further back than the radiating end 113b of the directional transmitting antenna 113.

[0083] In some embodiments, the antenna assembly 100 further includes a housing (not shown), within which the transmitting unit 110, the first directional receiving antenna 120, and the second directional receiving antenna 130 are housed. Optionally, the first directional receiving antenna 120 is disposed between the first side 111 of the transmitting unit 110 and the housing, meaning no directional transmitting antenna is disposed between the first directional receiving antenna 120 and the housing. The second directional receiving antenna 130 is disposed between the second side 112 of the transmitting unit 110 and the housing, meaning no transmitting antenna is disposed between the second directional receiving antenna 130 and the housing. The first directional receiving antenna 120 and the second directional receiving antenna 130 are generally disposed on the outermost side of all the directional transmitting antennas 113, without utilizing the gaps between the directional transmitting antennas 113 to house the directional receiving antennas. This embodiment increases the distance between the first directional receiving antenna 120 and the second directional receiving antenna 130, reduces the overlap between the radiation range of the first directional receiving antenna 120 and the radiation range of the second directional receiving antenna 130, and can reduce the impact of the directional transmitting antenna 113 on the receiving performance of the first directional receiving antenna 120 and the second directional receiving antenna 130, thereby improving the accuracy of azimuth detection.

[0084] The antenna assembly 100 provided in this embodiment includes: a transmitting unit 110, a first directional receiving antenna 120, and a second directional receiving antenna 130. The transmitting unit 110 has a first side 111 and a second side 112 facing each other. The first directional receiving antenna 120 is disposed on the first side 111 of the transmitting unit 110, and the second directional receiving antenna 130 is disposed on the second side 112 of the transmitting unit 110. By increasing the distance between the first directional receiving antenna 120 and the second directional receiving antenna 130, the overlap between the radiation ranges of the first directional receiving antenna 120 and the second directional receiving antenna 130 is reduced. This prevents the received signal strengths of the multiple directional receiving antennas of the antenna assembly 100 from being too similar for the object being measured, thus making it difficult to determine the location of the object being measured, thereby improving the location identification effect of the object being measured.

[0085] This application also provides a wireless detection device that can detect the location of the object being detected. For example, the wireless detection device includes, but is not limited to, at least one of the following: aircraft (such as drone) detection device, bird detection device, vehicle detection device, and ship detection device.

[0086] Please refer to the foregoing embodiments. Figure 7 ,like Figure 7 The diagram shown is a schematic block diagram of a wireless detection device provided in an embodiment of this application. The wireless detection device includes the aforementioned antenna assembly 100.

[0087] In some embodiments, the wireless detection device may further include a controller. This controller is capable of determining the location of the object under test based at least on the received signals from the first directional receiving antenna 120 and the second directional receiving antenna 130. The object under test is, for example, a drone, and the received signals are, for example, drone signals (i.e., electromagnetic wave signals).

[0088] For example, in the application of wireless detection equipment, the first directional receiving antenna 120 and the second directional receiving antenna 130 are used to receive electromagnetic wave signals within the detection range and convert them into baseband signals before transmitting them to the controller. The controller can identify the drone signal contained in the baseband signal and determine the location of the object under test based on the drone signal in the baseband signal.

[0089] Optionally, the wireless detection device may be a drone detection gun, a drone detection shield, or other forms of detection device.

[0090] The structure of the antenna assembly 100 in the wireless detection device is the same as that of the antenna assembly 100 in the above embodiments. Its specific structure and the beneficial effects produced have been described in detail in the above embodiments, and will not be elaborated here.

[0091] This application also provides a drone detection device, including the antenna assembly 100 described in the above embodiments. This drone detection device can use the antenna assembly 100 to detect the location of the drone.

[0092] This application also provides a drone countermeasure device; please refer to the foregoing embodiments for details. Figure 8 ,like Figure 8 The diagram shown is a schematic block diagram of a drone countermeasure device provided in an embodiment of this application. The drone countermeasure device includes the aforementioned antenna assembly 100.

[0093] Furthermore, the drone countermeasure device may also include a controller. The controller is used to determine the drone's location based on the drone signals received by the first directional receiving antenna 120 and the second directional receiving antenna 130 in the antenna assembly 100, and to control the corresponding directional transmitting antenna 113 in the antenna assembly 100 to transmit drone jamming signals to that location, so as to achieve the countermeasure function against the drone.

[0094] Optionally, the drone countermeasure device may be a drone countermeasure gun, a drone countermeasure shield, or other forms of countermeasure device.

[0095] The structure of the antenna assembly 100 in the anti-drone device is the same as that of the antenna assembly 100 in the above embodiments. Its specific structure and the beneficial effects have been described in detail in the above embodiments, and will not be elaborated here.

[0096] It should be understood that the terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application.

[0097] It should be understood that the specific order or hierarchy of steps in the disclosed process is an example of an exemplary method. Based on design preferences, it should be understood that the specific order or hierarchy of steps in the process may be rearranged without departing from the scope of this disclosure. The appended method claims provide elements of various steps in an exemplary order and are not intended to limit the scope to the specific order or hierarchy described.

[0098] In the above detailed description, various features are combined together in a single embodiment to simplify this disclosure. This approach to disclosure should not be construed as reflecting an intention that embodiments of the claimed subject matter require more features than are explicitly stated in each claim. Rather, as reflected in the appended claims, embodiments of this application are presented with fewer features than all of the features in a single disclosed embodiment. Therefore, the appended claims are hereby explicitly incorporated into the detailed description, with each claim representing a separate preferred embodiment of this application.

[0099] The foregoing description includes examples of one or more embodiments. It is certainly impossible to describe all possible combinations of components or methods in order to describe the above embodiments, but those skilled in the art will recognize that further combinations and arrangements of the various embodiments are possible. Therefore, the embodiments described herein are intended to cover all such changes, modifications, and variations that fall within the scope of the appended claims. Furthermore, the term "comprising" as used in the specification or claims is interpreted in a manner similar to the term "including," as interpreted when used as a conjunction in the claims. Additionally, the use of any term "or" in the specification of the claims is intended to mean "non-exclusive or."

Claims

1. An antenna assembly, characterized in that, The antenna assembly includes: A transmitting unit having opposing first and second sides; A first directional receiving antenna is disposed on a first side of the transmitting unit; The second directional receiving antenna is disposed on the second side of the transmitting unit.

2. The antenna assembly as claimed in claim 1, characterized in that, The angle between the maximum receiving direction of the first directional receiving antenna and the maximum receiving direction of the second directional receiving antenna is greater than 0 degrees and less than 180 degrees.

3. The antenna assembly as described in claim 1, characterized in that, The angle between the direction in which the interface end of the first directional receiving antenna extends toward the receiving end of the first directional receiving antenna and the direction in which the interface end of the second directional receiving antenna extends toward the receiving end of the second directional receiving antenna is greater than 0 degrees and less than 180 degrees.

4. The antenna assembly as described in claim 3, characterized in that, The first directional receiving antenna and the second directional receiving antenna are symmetrical to each other.

5. The antenna assembly as claimed in claim 1, characterized in that, The transmitting unit has a first side facing a first side and a second side facing a second side; the distance between the receiving end of the first directional receiving antenna and the first side of the transmitting unit is greater than the distance between the interface end of the first directional receiving antenna and the first side of the transmitting unit; The distance between the receiving end of the second directional receiving antenna and the second side of the transmitting unit is greater than the distance between the interface end of the second directional receiving antenna and the second side of the transmitting unit.

6. The antenna assembly as described in any one of claims 1-5, characterized in that, The transmitting unit includes one or more directional transmitting antennas; The distance between the interface end of the first directional receiving antenna and the interface end of the directional transmitting antenna is less than the distance between the interface end of the first directional receiving antenna and the radiating end of the directional transmitting antenna. And / or, The distance between the interface end of the second directional receiving antenna and the interface end of the directional transmitting antenna is less than the distance between the interface end of the second directional receiving antenna and the radiating end of the directional transmitting antenna.

7. The antenna assembly as claimed in claim 6, characterized in that, The projection of the receiving end of the first directional receiving antenna onto the directional transmitting antenna is located between the interface end of the directional transmitting antenna and the radiating end of the directional transmitting antenna; And / or, The projection of the receiving end of the second directional receiving antenna onto the directional transmitting antenna is located between the interface end of the directional transmitting antenna and the radiating end of the directional transmitting antenna.

8. The antenna assembly as described in any one of claims 1-5, characterized in that, The transmitting unit includes one or more antenna plates, and each antenna plate is provided with one or more directional transmitting antennas; The antenna plates are arranged in parallel at intervals, and the first directional receiving antenna, the multiple antenna plates, and the second directional receiving antenna are arranged sequentially along a first direction, which is perpendicular to the extension direction of each antenna plate.

9. A wireless detection device, characterized in that, The wireless detection device includes: an antenna assembly as described in any one of claims 1 to 8.

10. A drone detection device, characterized in that, The drone detection device includes: an antenna assembly as described in any one of claims 1 to 8.

11. A drone countermeasure device, characterized in that, The drone countermeasure device includes: an antenna assembly as described in any one of claims 1 to 8.

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