Airborne antenna, base station and carrying tool

Abstract

The embodiment of the invention provides an airborne antenna, a base station and a carrier, the airborne antenna comprises an antenna radiation array, a telescopic unit and a controller, and the antenna radiation array comprises a plurality of antenna radiation units; the plurality of antenna radiation units are connected with the telescopic unit; each antenna radiation unit and the telescopic unit are connected with the controller, and the controller is used for adjusting the distance between the plurality of antenna radiation units through the telescopic unit and controlling the working states of the plurality of antenna radiation units. According to the scheme of the embodiment of the invention, the antenna gain can be conveniently and quickly adjusted, and the requirements of different coverage scenes can be well met.

Description

Technical Field

[0001] The embodiments of the present application relate to, but are not limited to, the field of communication equipment technology, and in particular to an airborne antenna, a base station, and a vehicle. Background Art

[0002] With the continuous development and maturity of drone technology, drones have been widely used in emergency communications. In emergency communications scenarios, such as when ground communication networks are widely disrupted or ground transportation is completely blocked, emergency communication vehicles cannot reach the disaster area. In such cases, drone-mounted base stations are needed to restore communications. The onboard antenna is a key component for communication between drones and ground terminals. Traditional onboard antennas have a fixed gain and a relatively fixed coverage area, making them difficult to meet the needs of diverse coverage scenarios. Summary of the Invention

[0003] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

[0004] The embodiments of the present application provide an airborne antenna, a base station, and a vehicle, which can adjust the antenna gain quickly and conveniently, and well meet the requirements of different coverage scenarios.

[0005] In a first aspect, an embodiment of the present application provides an airborne antenna, comprising:

[0006] An antenna radiating array, wherein the antenna radiating array comprises a plurality of antenna radiating units;

[0007] a telescopic unit, wherein the plurality of antenna radiating units are connected to the telescopic unit;

[0008] A controller, wherein each of the antenna radiating units and the telescopic unit is connected to the controller, and the controller is used to adjust the distance between the multiple antenna radiating units through the telescopic units and control the working status of the multiple antenna radiating units.

[0009] In a second aspect, an embodiment of the present application provides a base station, comprising the airborne antenna described in the embodiment of the first aspect above.

[0010] In a third aspect, an embodiment of the present application provides a vehicle, the vehicle including a mounting base, and the base station described in the embodiment of the second aspect arranged on the mounting base.

[0011] The embodiments of the present application include: the airborne antenna includes an antenna radiating array, a telescopic unit and a controller; wherein, the antenna radiating array includes multiple antenna radiating units, the multiple antenna radiating units are all connected to the telescopic unit, and the multiple antenna radiating units and the telescopic unit are also connected to the controller, so that the controller can adjust the distance between the multiple antenna radiating units through the telescopic unit and control the working status of the multiple antenna radiating units; the embodiments of the present application change the vertical plane beam width and gain of the antenna by adjusting the distance between the multiple antenna radiating units in the antenna radiating array and controlling the working status of the multiple antenna radiating units, thereby being able to well meet the needs of different coverage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0013] Figure 1 This is a schematic diagram of an airborne antenna application scenario provided by an embodiment of the present application;

[0014] Figure 2 is a schematic diagram of an airborne antenna provided in one embodiment of the present application;

[0015] Figure 3 This is a schematic diagram of a three-dimensional structure in a non-working state provided by an embodiment of the present application;

[0016] Figure 4 This is a schematic diagram of a three-dimensional structure in a working state provided by an embodiment of the present application;

[0017] Figure 5 is a schematic diagram of a three-dimensional structure in a non-working state provided by another embodiment of the present application;

[0018] Figure 6 is a schematic diagram of a three-dimensional structure in a working state provided by another embodiment of the present application;

[0019] Figure 7 This is a schematic structural diagram of an antenna radiating unit provided by an embodiment of the present application;

[0020] Figure 8 This is a schematic diagram of the coverage of four vibrators excited by the telescopic unit provided by one embodiment of the present application in a working state;

[0021] Figure 9 This is a schematic diagram of coverage of a telescopic unit provided by one embodiment of the present application in a working state, exciting one vibrator;

[0022] Figure 10This is a schematic diagram of the telescopic unit provided by one embodiment of the present application in a working state, exciting the coverage of two vibrators;

[0023] Figure 11 This is a schematic diagram of the coverage of three vibrators excited by the telescopic unit provided by one embodiment of the present application in a working state;

[0024] Figure 12 This is a schematic diagram of the coverage of three vibrators provided in one embodiment of the present application;

[0025] Figure 13 This is a schematic diagram of the coverage of five vibrators provided in one embodiment of the present application;

[0026] Figure 14 This is a schematic diagram of the control principle of a single-port excitation RF switch provided by an embodiment of the present application. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0028] In the description of this application, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The terms "first" and "second" are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or as implicitly specifying the number or order of the technical features indicated.

[0029] In addition, terms such as "upper", "above", "lower", "below" and the like used in this application to indicate spatial relative positions are used for the purpose of convenience to describe the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. Terms of spatial relative position may be intended to include different orientations of the device in use or operation other than the orientation shown in the drawings. For example, if the device in the figure is turned over, the unit described as being "below" or "beneath" other units or features will be located "above" the other units or features. Therefore, the exemplary term "below" can encompass both the above and below orientations. The device can be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially related descriptors used herein should be interpreted accordingly.

[0030] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0031] With the continuous development and maturity of drone technology, drones have been widely used in emergency communications. In emergency communications scenarios, such as when ground communication networks are widely disrupted or ground transportation is completely blocked, emergency communication vehicles cannot reach the disaster area. In such cases, drone-mounted base stations are needed to restore communications. The onboard antenna is a key component for communication between drones and ground terminals. Traditional onboard antennas have a fixed gain and a relatively fixed coverage area, making them difficult to meet the needs of diverse coverage scenarios.

[0032] In order to solve the above problems, an embodiment of the present application provides an airborne antenna, a base station and a carrier, wherein the airborne antenna includes an antenna radiation array, a telescopic unit and a controller; wherein the antenna radiation array includes multiple antenna radiation units, and the multiple antenna radiation units are all connected to the telescopic unit, and the multiple antenna radiation units and the telescopic unit are also connected to the controller, so that the controller can adjust the distance between the multiple antenna radiation units through the telescopic unit and control the working status of the multiple antenna radiation units; the embodiment of the present application changes the vertical plane beam width and gain of the antenna by adjusting the distance between the multiple antenna radiation units in the antenna radiation array and controlling the working status of the multiple antenna radiation units, thereby meeting the needs of different coverage scenarios well.

[0033] The embodiments of the present application are further described below with reference to the accompanying drawings.

[0034] like Figure 1 and Figure 2 As shown, an airborne antenna provided by an embodiment of the first aspect of the present application is arranged at the belly of a vehicle (such as a drone). The airborne antenna can be completely located under the belly, or partially located under the belly, with the other part embedded in the belly.

[0035] The airborne antenna includes an antenna radiating array 100, a telescopic unit 200 and a controller 300; wherein, the antenna radiating array 100 includes multiple antenna radiating units 110, and the working status of each antenna radiating unit 110 can be independently controlled, that is, whether the antenna radiating unit 110 is excited to work is controlled; multiple antenna radiating units 110 are connected to the telescopic unit 200, and then the telescopic unit 200 can adjust the distance between the multiple antenna radiating units 110, thereby adjusting the vertical plane beam width and gain of the antenna to meet the requirements of different coverage scenarios.

[0036] It is worth noting that the telescopic unit 200 and each antenna radiating unit 110 are electrically connected to the controller 300, so that the controller 300 can adjust the distance between the multiple antenna radiating units 110 of the antenna radiating array 100 through the telescopic unit 200, and can also control the working status of each antenna radiating unit 110, so as to set the number of excited antenna radiating units 110; based on the distance between the antenna radiating units 110 and the number of excited antenna units, the vertical plane beam width and gain of the antenna are quickly adjusted to well meet the signal coverage requirements of different scenarios, making the antenna more flexible during operation.

[0037] It is worth noting that when the antenna is applied to the field of airborne antennas, since the distance between multiple antenna radiating arrays 100 in the antenna radiating array 100 can be adjusted by the telescopic unit 200, the antenna radiating array 100 can be stored by the telescopic unit 200 when the antenna is not required to operate, which can effectively prevent the antenna from being damaged during flight. In the related art, when a drone cannot cover the target area, the operator is often required to use a remote control to adjust the drone's parking position or re-set the drone's take-off altitude and longitude and latitude. However, both methods require the operator's experience, are cumbersome to operate, and the adjustment is not precise. Based on the technical solution of the present application, the controller 300 can be used to adjust the distance between multiple antenna radiating units 110 and control the working status of multiple antenna radiating units 110, so that the antenna can be quickly adjusted according to actual needs, so that the antenna can better provide signal coverage for the target area. According to different application scenarios, the coverage range of the antenna can be flexibly adjusted by setting the distance between multiple antenna radiating units 110 and the number of multiple antenna radiating units 110 that are activated to operate, so as to meet different coverage requirements.

[0038] In some embodiments of the present application, the controller 300 may be a single chip microcomputer controller, a programmable logic controller, or a field programmable gate array, etc., which is not limited here.

[0039] In some embodiments of the present application, multiple antenna radiating units 110 are distributed along the vertical direction; wherein the vertical direction is perpendicular to the horizontal direction, and the horizontal direction is defined according to the direction of the earth's gravity, that is, the direction perpendicular to the earth's gravity is the horizontal direction. The telescopic unit 200 can adjust the distance between the multiple antenna radiating units 110 in the vertical direction to adjust the directional pattern gain and beamwidth of the target range. For example, in the process of using a drone to carry the antenna of the embodiment of the present application, the multiple antenna radiating units 110 will be distributed along the vertical direction; in order to adjust the vertical plane beamwidth and gain of the antenna, the telescopic unit 200 can be used to adjust the distance between the multiple antenna radiating units 110 in the vertical direction; when the airborne antenna is not needed for signal coverage, the telescopic unit 200 can be used to store the multiple antenna radiating units 110 distributed in the vertical direction, which effectively prevents the antenna from being damaged during flight.

[0040] like Figure 2 As shown, in some embodiments of the present application, the airborne antenna further includes a driver 400, which is connected between the controller 300 and the telescopic unit 200. The controller 300 can control the working state of the driver 400, thereby achieving synchronous control of the operating state of the telescopic unit 200.

[0041] like Figure 3 and Figure 4 As shown, in some embodiments of the present application, the telescopic unit 200 includes a first telescopic rod 210, the driver 400 includes a piston air pump, the piston air pump is connected to the first telescopic rod 210, and multiple antenna radiation units 110 are connected to the first telescopic rod 210; wherein, the first telescopic rod 210 can be a hollow sealed telescopic rod 210, and a piston is provided inside the first telescopic rod 210; when the first telescopic rod 210 needs to be extended, the piston air pump can be used to inflate the interior of the first telescopic rod 210, and the piston provided inside the first telescopic rod 210 moves under the drive of the inhaled gas, thereby driving the first telescopic rod 210 to extend; when the first telescopic rod 210 needs to be retracted, the piston air pump can be used to evacuate the interior of the first telescopic rod 210, and the piston provided inside the first telescopic rod 210 will retract toward one side of the piston air pump, thereby driving the first telescopic rod 210 to retract. When the distance between the multiple antenna radiation units 110 needs to be adjusted, it is only necessary to use the controller 300 to control the working state of the piston air pump. The entire control process is simple and convenient.

[0042] like Figure 3 and Figure 4As shown, in some embodiments of the present application, the telescopic unit 200 includes a second telescopic rod, the driver 400 includes a first motor, the first motor is connected to the second telescopic rod, the first motor is controlled by the controller 300, and multiple antenna radiating units 110 are arranged on the second telescopic rod; the controller 300 can control the first motor so that the second telescopic rod will also move following the working state of the first motor. Specifically, a rack is provided on the second telescopic rod, and a gear is provided on the output shaft of the first motor. The gear and the rack are meshed with each other, so that when the first motor is working, it can drive the gear to rotate through the output shaft, and the rotating gear can drive the rack to move, thereby causing the second telescopic rod to telescope. By simply changing the direction of the first motor, the working state of the second telescopic rod can be adjusted, thereby adjusting the distance between the multiple antenna radiating units 110, and the control process can be simpler and more accurate.

[0043] like Figure 5 and Figure 6 As shown, in some embodiments of the present application, the telescopic unit 200 includes a scissors-type lifting structure 220, the driver 400 includes a second motor 410 and a sliding block 420, the sliding block 420 is connected to one end of the scissors-type lifting structure 220, and multiple antenna radiating units 110 are arranged on the scissors-type lifting structure 220; the second motor 410 is controlled by the controller 300, and the second motor 410 can drive the sliding block 420 to move in the horizontal direction; when the controller 300 controls the second motor 410 to rotate, the sliding block 420 will move in the horizontal direction, and the horizontally moving sliding block 420 will drive the scissors-type lifting structure 220 to move; when the scissors-type lifting structure 220 is folded, the distance between the multiple antenna radiating units 110 will be reduced; when the scissors-type lifting structure 220 is unfolded, the distance between the multiple antenna radiating units 110 will increase. For example, the output shaft of the second motor 410 is connected to a screw, the sliding block 420 is sleeved on the screw, and the sliding block 420 is inserted between two parallel guide rods. Then, when the second motor 410 is working, the screw rotates, thereby driving the sliding block 420 to move horizontally along the guide rod; since the sliding block 420 is arranged at one end of the scissors-type lifting structure 220, it can drive the scissors-type lifting structure 220 to fold or unfold.

[0044] It is worth noting that multiple antenna radiating units 110 are arranged on the scissors-type lifting structure 220 in the vertical direction, so that when the scissors-type lifting structure 220 is folded, the distance between the multiple antenna radiating units 110 will be shortened. In the fully folded state, the adjacent antenna radiating units 110 will also fit and overlap, so that the multiple antenna radiating units 110 can be well stored and processed; when the scissors-type lifting structure 220 is in the extended configuration, the distance between the multiple antenna radiating units 110 will increase, and the vertical beam width and gain of the antenna will change accordingly, making it suitable for various signal coverage scenarios.

[0045] In some embodiments of the present application, the airborne antenna has an operating state and a non-operating state. To ensure that the antenna's signal coverage can better meet requirements, when the airborne antenna is in the operating state, the distance between adjacent antenna radiating elements 110 is between a first preset length and a second preset length. When the airborne antenna is in the non-operating state, the distance between adjacent antenna radiating elements 110 is less than the first preset length. The first preset length and the second preset length are calculated based on the wavelength corresponding to the center frequency of the operating frequency band of the antenna radiating element 110. For example, during operation, in order to achieve effective coverage of the target range, the controller 300 sets the distance between the antenna radiating units 110 to L1. Under the action of the driver 400, the telescopic unit 200 is in a stretched state, and the center distance between two adjacent antenna radiating units 110 of the N antenna radiating units 110 is defined as L1, and L1 is 0.4λ-0.75λ, where λ is the wavelength corresponding to the center frequency of the working frequency band of the antenna radiating unit 110; the setting of L1 can be based on antenna array theory. If L1 is less than 0.4λ, it will cause strong coupling between the antenna radiating units 110, and thus cause distortion of the vertical composite radiation pattern; if L1 is greater than 0.75λ, it will cause grating lobes to appear in the vertical composite radiation pattern, energy divergence, and low radiation efficiency, and it is easy to cause problems such as adjacent area interference and cross-area coverage. During the non-working process, in order to prevent the antenna from being damaged, the antenna is stored. The distance between the antenna radiating units 110 set by the controller 300 is L2. Under the action of the driver 400, the telescopic unit 200 is in a retracted state. The center distance between two adjacent antenna radiating units 110 of the N antenna radiating units 110 is defined as L2, where L2 is 0λ-0.4λ; when L2 is 0λ, the entire antenna array is in a folded and retracted state, which can well prevent the antenna from being damaged and provide good protection for the antenna.

[0046] It should be noted that the distance L1 between two adjacent antenna radiating units 110 in the working state can be the same or different, and is not limited here. Similarly, the distance L2 between two adjacent antenna radiating units 110 in the non-working state can be the same or different.

[0047] like Figure 6 As shown, in some embodiments of the present application, the airborne antenna further includes a feeder 230, and the antenna controller 300 is connected to the feed port 130 of each antenna radiating unit 110 via the feeder 230, so that the controller 300 can control the working state of the corresponding antenna radiating unit 110 via the feeder 230, thereby controlling the number of antenna radiating units 110 in operation. For example, the antenna array has five antenna radiating units 110, and four of the antenna radiating units 110 are powered via the feeder 230, so that the four antenna radiating units 110 can enter the antenna radiating working state, and the remaining antenna radiating unit 110 will not enter the antenna radiating working state because it is not powered. By controlling the feed port 130 of each antenna radiating unit 110, the number of antenna radiating units 110 in operation of the antenna array can be controlled and adjusted conveniently and quickly, thereby effectively meeting different signal coverage requirements. It is worth noting that a feed line 230 is provided inside the first telescopic rod 210 and the second telescopic rod 210 , so that the feeding port 130 of each antenna radiating unit 110 can be controlled.

[0048] It is worth noting that, in order to achieve better signal coverage and also to achieve lightweight antennas, an antenna array may include 3-10 antenna radiating elements 110. Furthermore, to ensure a more stable setting of the multiple antenna radiating elements 110, the telescopic unit 200 is disposed in the center of each antenna radiating element 110. The center area has a better balancing effect, making the antenna more stable when carried by a drone.

[0049] like Figure 7As shown, in some embodiments of the present application, each antenna radiating unit 110 includes a plurality of oscillators, each of which corresponds to a feeding port 130, so that the controller 300 can individually control each oscillator of each antenna radiating unit 110 through the feeder 230. For example, an antenna radiating unit 110 includes four oscillators, each of which corresponds to a feeding port 130. When three oscillators are required to be excited, only the three feeding ports 130 need to be powered, so that the corresponding number of oscillators can be excited. Through the above settings, the independent control of the oscillators can be achieved by controlling the feeding port 130 of each oscillator, thereby better meeting different signal coverage requirements. Furthermore, each vibrator of each antenna radiating unit 110 can be controlled independently, thereby meeting the energy-saving requirements while meeting the signal coverage requirements. For example, an antenna radiating unit 110 has 4 vibrators. When 3 of the vibrators are excited, the signal coverage requirements can be met. If the 4 vibrators can only be controlled uniformly, this will cause waste of energy. Therefore, when each vibrator can be independently controlled, it is only necessary to control 3 vibrators to enter the excitation working state, which can meet both the signal coverage requirements and the energy-saving requirements.

[0050] like Figures 8-11 As shown, for example, an antenna radiation unit may include four dipoles; each dipole is arranged around the telescopic unit, and is represented in this figure as dipole 1, dipole 2, dipole 3 and dipole 4, and each dipole corresponds to a dipole feeding port, and is represented in this figure as dipole feeding port 1, dipole feeding port 2, dipole feeding port 3 and dipole feeding port 4. In the embodiment of the present application, the radiation direction can be switched by turning off the feeding excitation, so as to meet the requirements of efficient coverage in a specific horizontal direction and low energy consumption. For example, if the dipole feeding ports 1, 2, 3, and 4 are fully excited, omnidirectional coverage in the horizontal direction can be achieved; if one of the dipole feeding ports 1, 2, 3, and 4 is excited, coverage in a single horizontal direction can be achieved; if two of the dipole feeding ports 1, 2, 3, and 4 are excited, partial coverage in two horizontal directions can be achieved; if three of the dipole feeding ports 1, 2, 3, and 4 are excited, partial coverage in three horizontal directions can be achieved. The coverage of the antenna radiation unit can be controlled and adjusted by only controlling the feeding of the corresponding dipole feeding port, and the control process is simple and fast.

[0051] like Figure 12-13As shown, in some embodiments of the present application, preferably, an antenna radiating unit may include four oscillators, which can well meet the omnidirectional coverage in the horizontal direction; an antenna radiating unit may also include three oscillators. Compared with the four oscillators that require four feeding ports, three oscillators only need to provide three feeding ports, which is lower in power consumption, but there is a risk of blind coverage. An antenna radiating unit may also include five oscillators, which can also well meet the signal coverage requirements compared to the four-element setting, but there is the problem of higher power consumption.

[0052] In some embodiments of the present application, there may be multiple vibrators, and the telescopic unit is located at the center of the antenna radiating unit. The multiple vibrators may be symmetrically arranged with the telescopic unit as the center to enable better signal coverage processing. For example, an antenna radiating unit may include four vibrators, and the four vibrators may be symmetrically arranged with equal spacing around the telescopic unit with the telescopic unit as the center to better achieve signal coverage processing. When an antenna radiating unit includes five vibrators, the five vibrators may be arranged with equal spacing with the telescopic unit as the center, or may not be arranged with equal spacing, which is not limited here.

[0053] In some examples of the present application, in order to facilitate the storage of the antenna array, the vibrator of the embodiment of the present application can be in the form of a flat printed or flexible circuit board, which can not only better achieve the lightweight of the antenna array, but also facilitate the storage of the antenna.

[0054] like Figure 14 As shown, in some embodiments of the present application, the antenna radiation unit also includes a load, and the load corresponds to the vibrator one-to-one; for each vibrator, an RF switch is also provided between the vibrator and the feeding port; wherein, when the selection end of the RF switch is connected to the vibrator, the vibrator can be in an excited state, and when the selection end of the RF switch is connected to the load, the corresponding vibrator can be in a disconnected state. Exemplarily, the antenna radiating unit is enabled to operate in different modes by controlling the working state (such as closed / open, on / off) of the RF switch (such as a PIN tube), as follows: when the RF switch 1 (such as a PIN tube) switches the vibrator 1 side, that is, the vibrator 1 is in an excited state; the radiation pattern radiates toward the positive direction (y+) of the coordinate axis y-axis; when the RF switch 1 (such as a PIN tube) switches the load side, that is, the vibrator 1 is in an off state, no radiation pattern in the positive direction (y+) of the y-axis is generated; the working modes of other vibrators refer to the above method, and radiation mode switching in different directions can be achieved; multiple vibrators on each radiating unit (4 in the example of the present invention) adopt the principle solution of this application to realize different excitation modes for multiple vibrators with a single port, wherein the main port is connected to the feeder 230 in the example to realize different beam switching to meet specific coverage scenarios.

[0055] A base station provided in an embodiment of the second aspect of the present application includes the airborne antenna described in the embodiment of the first aspect above; it is worth noting that the base station in the embodiment of the present application and the airborne antenna in the embodiment of the first aspect above are based on the same inventive concept and will not be repeated here.

[0056] like Figures 1 to 3 As shown, an embodiment of the third aspect of the present application provides a vehicle, which includes a mounting base 500 and a base station disposed on the mounting base 500. The controller 300 is disposed on the mounting base 500; the mounting base 500 is used to mount and secure the antenna array on the drone, illustratively, on the belly of the drone. In some preferred embodiments, the mounting base 500 can be a hollow box 310 structure, so that when the antenna array is in a retracted state, it can be stored within the mounting base 500 together with the telescopic unit 200, providing good protection for the antenna array.

[0057] The above is a specific description of the preferred implementation of the present application, but the present application is not limited to the above implementation mode. Technical personnel familiar with the field can also make various equivalent modifications or substitutions without violating the spirit of the present application. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present application.

Claims

1. An airborne antenna, comprising: An antenna radiating array, wherein the antenna radiating array comprises a plurality of antenna radiating units; a telescopic unit, a plurality of the antenna radiating units being connected to the telescopic unit; A controller, each of the antenna radiating units and the telescopic unit is connected to the controller, and the controller is used to adjust the distance between the multiple antenna radiating units through the telescopic units and control the working status of the multiple antenna radiating units.

2. The airborne antenna according to claim 1, characterized in that: The airborne antenna further includes a driver, and the controller controls the telescopic unit through the driver.

3. The airborne antenna according to claim 1, characterized in that: The multiple antenna radiation units are distributed along the vertical direction, and the telescopic unit is used to adjust the distance between the multiple antenna radiation units in the vertical direction.

4. The airborne antenna according to claim 2, characterized in that: The telescopic unit includes a first telescopic rod, and the driver includes a piston air pump, the piston air pump is connected to the first telescopic rod, the first telescopic rod is connected to the antenna radiation unit, and the piston air pump inflates or exhausts air into the first telescopic rod to extend and retract the first telescopic rod.

5. The airborne antenna according to claim 2, characterized in that: The telescopic unit includes a second telescopic rod, the driver includes a first motor, the first motor is connected to the second telescopic rod, the second telescopic rod is connected to the antenna radiation unit, and the first motor is used to drive the second telescopic rod to be telescopic.

6. The airborne antenna according to claim 2, characterized in that: The telescopic unit includes a scissors-type lifting structure, and the driver includes a second motor and a sliding block. The sliding block is connected to one end of the scissors-type lifting structure, and the scissors-type lifting structure is connected to the antenna radiation unit. The second motor controls the movement of the sliding block to extend or contract the scissors-type lifting structure.

7. The airborne antenna according to any one of claims 1 to 6, characterized in that: The airborne antenna also includes a feeder line, and the controller is connected to the feeding port of each antenna radiating unit through the feeder line. The controller controls the working state of each antenna radiating unit through the feeder line.

8. The airborne antenna according to claim 7, characterized in that: Each of the antenna radiation units includes a plurality of vibrators, and the vibrators are connected to the feeding ports, wherein the vibrators correspond to the feeding ports one by one, and the controller controls the working state of the corresponding vibrators through the feeding ports.

9. The airborne antenna according to claim 1, characterized in that: The airborne antenna has a working state and a non-working state; when the airborne antenna is in the working state, the distance between adjacent antenna radiation units is between a first preset length and a second preset length; When the airborne antenna is in the non-working state, the distance between adjacent antenna radiation units is less than the first preset length.

10. The airborne antenna according to claim 9, characterized in that: The first preset length and the second preset length are obtained based on a wavelength corresponding to a central frequency point of an operating frequency band of the antenna radiation unit.

11. The airborne antenna according to claim 8, characterized in that: When there are plural vibrators, the expansion unit is provided at the center of the plural vibrators.

12. The airborne antenna according to claim 8, characterized in that: Each of the antenna radiation units also includes a load, which corresponds to the vibrator one by one; for each of the vibrators, a radio frequency switch is also arranged between the vibrator and the feeding port; wherein the selection end of the radio frequency switch is connected to the vibrator so that the vibrator is in an excited state, and the selection end of the radio frequency switch is connected to the load so that the vibrator is in a disconnected state.

13. A base station, characterized in that: The base station comprises the airborne antenna according to any one of claims 1 to 12.

14. A vehicle, characterized in that: The vehicle comprises a mounting base, and the base station according to claim 13 is arranged on the mounting base.

Images