Airborne antennas, base stations, and vehicles

Abstract

The embodiment of the application provides an airborne antenna, a base station and a vehicle. The airborne antenna comprises an antenna radiation array, a telescopic unit and a controller. 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. The controller is configured to adjust the distance between the plurality of antenna radiation units through the telescopic unit, and control the working state of the plurality of antenna radiation units. According to the scheme of the embodiment of the application, the antenna gain can be conveniently and quickly adjusted, and different coverage scene requirements can be well met.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to, but are not limited to, the technical field of communication equipment, and in particular to an airborne antenna, a base station and a carrier vehicle. BACKGROUND

[0002] With the continuous development and maturity of unmanned aerial vehicle technology, unmanned aerial vehicles have been widely applied to the field of emergency communication. In the scenario of emergency communication, for example, in the case of large-area interruption of ground communication networks and complete blockage of ground traffic, an emergency communication vehicle cannot approach the disaster area, at which time the mode of using an unmanned aerial vehicle to carry a base station is needed to restore communication. Among them, the airborne antenna is a key component for communication between the unmanned aerial vehicle and the ground terminal. The gain of the traditional airborne antenna is fixed, and the corresponding coverage area is also relatively fixed, which is difficult to meet the needs of different coverage scenarios. SUMMARY

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

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

[0006] an antenna radiation array, the antenna radiation array comprising a plurality of antenna radiation units;

[0007] a telescopic unit, each of the plurality of antenna radiation units being connected to the telescopic unit;

[0008] a controller, each of the antenna radiation units and the telescopic unit being connected to the controller, the controller being configured to adjust the distance between the plurality of antenna radiation units through the telescopic unit and control the working state of the plurality of antenna radiation units.

[0009] In a second aspect, embodiments of the present application provide a base station, comprising the airborne antenna of the first aspect.

[0010] In a third aspect, embodiments of the present application provide a carrier vehicle, comprising a mounting base and a base station of the second aspect arranged on the mounting base.

[0011] The embodiment of the present application comprises: an airborne antenna comprises an antenna radiation array, a telescopic unit and a controller; wherein the antenna radiation array comprises a plurality of antenna radiation units, the plurality of antenna radiation units are connected with the telescopic unit, and the plurality of antenna radiation units and the telescopic unit are also connected with the controller, so that the controller can adjust the distance between the plurality of antenna radiation units through the telescopic unit, and control the working state of the plurality of antenna radiation units; the embodiment of the present application adjusts the distance between the plurality of antenna radiation units in the antenna radiation array and controls the working state of the plurality of antenna radiation units, so as to change the antenna vertical plane beam width and gain, and then the requirements of different coverage scenarios can be well met. BRIEF DESCRIPTION OF DRAWINGS

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

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

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

[0015] Figure 3 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 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 is a schematic diagram of a structure of an antenna radiation unit provided by an embodiment of the present application;

[0020] Figure 8 is a schematic diagram of coverage of an excitation of 4 oscillators when the telescopic unit is in a working state provided by an embodiment of the present application;

[0021] Figure 9 is a schematic diagram of coverage of an excitation of 1 oscillator when the telescopic unit is in a working state provided by an embodiment of the present application;

[0022] Figure 10is a schematic diagram of coverage of the telescopic unit in the working state according to an embodiment of the present application, in which 2 oscillators are excited;

[0023] Figure 11 is a schematic diagram of coverage of the telescopic unit in the working state according to an embodiment of the present application, in which 3 oscillators are excited;

[0024] Figure 12 is a schematic diagram of coverage of 3 oscillators according to an embodiment of the present application;

[0025] Figure 13 is a schematic diagram of coverage of 5 oscillators according to an embodiment of the present application;

[0026] Figure 14 is a schematic diagram of a control principle of a single-port excitation radio frequency switch according to an embodiment of the present application. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0028] In the description of the present application, one or more is meant to be one or more, two or more is meant to be two or more, greater than, less than, more than, etc. are understood to not include the number, above, below, etc. are understood to include the number. If it is described as first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0029] In addition, the terms used herein, such as "upper", "upper", "lower", "lower", etc. to describe the spatial relative position of one unit or feature with respect to another unit or feature are for the purpose of description as shown in the drawings. The spatial relative position terms can be intended to include different orientations of the device in use or operation in addition to the orientation shown in the drawings. For example, if the device in the drawing is turned over, the unit described as being "below" or "under" other units or features will be "above" other units or features. Therefore, the exemplary term "below" can include both the above and below positions. The device can be oriented in other ways (rotated 90 degrees or other orientations), and the spatially related descriptions used herein are interpreted accordingly.

[0030] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and those skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0031] With the continuous development and maturity of unmanned aerial vehicle technology, unmanned aerial vehicles have been widely applied to the field of emergency communication. In the scenario of emergency communication, for example, in the case of large-area interruption of ground communication networks and complete blockage of ground traffic, the emergency communication vehicle cannot approach the disaster area, at which time the unmanned aerial vehicle carrying the base station is needed to restore communication. Among them, the airborne antenna is the key component of the communication between the unmanned aerial vehicle and the ground terminal; the traditional airborne antenna has fixed gain, and the corresponding coverage area is also relatively fixed, which is difficult to meet the needs of different coverage scenarios.

[0032] In order to solve the above problems, the embodiment of the present application provides an airborne antenna, a base station and a carrier, the airborne antenna comprising an antenna radiation array, a telescopic unit and a controller; wherein the antenna radiation array comprises a plurality of antenna radiation units, the plurality of antenna radiation units are connected with the telescopic unit, and the plurality of antenna radiation units and the telescopic unit are also connected with the controller, so that the controller can adjust the distance between the plurality of antenna radiation units through the telescopic unit, and control the working state of the plurality of antenna radiation units; the embodiment of the present application adjusts the distance between the plurality of antenna radiation units in the antenna radiation array and controls the working state of the plurality of antenna radiation units, so as to change the antenna vertical plane beam width and gain, thereby meeting the needs of different coverage scenarios.

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

[0034] As shown in Figure 1 and Figure 2 , the first aspect of the present application provides an airborne antenna, which is arranged at the belly position of the carrier (such as unmanned aerial vehicle), and can be completely located below the belly, or partially located below the belly and the other part embedded in the belly.

[0035] The airborne antenna comprises an antenna radiation array 100, a telescopic unit 200 and a controller 300; wherein the antenna radiation array 100 comprises a plurality of antenna radiation units 110, the working state of each antenna radiation unit 110 can be independently controlled, that is, whether the antenna radiation unit 110 is excited to work is controlled; the plurality of antenna radiation units 110 are connected with the telescopic unit 200, and then the telescopic unit 200 can adjust the distance between the plurality of antenna radiation units 110, so as to adjust the antenna vertical plane beam width and gain, so as to meet the needs of different coverage scenarios.

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

[0037] It is worth noting that the antenna is applied to the field of airborne antenna, and the distance between the plurality of antenna radiation arrays 100 in the antenna radiation array 100 can be adjusted by the telescopic unit 200, so that the antenna radiation array 100 can be stored by the telescopic unit 200 when the antenna does not need to work, which can well avoid damage of the antenna during flight. In the related art, when the unmanned aerial vehicle cannot cover the target area, the operator often needs to adjust the stay position of the unmanned aerial vehicle by using the remote controller or reset the take-off height and latitude and longitude of the unmanned aerial vehicle, but both of the two ways need to rely on the experience of the operator, and the operation is more complicated and the adjustment is not accurate enough. Based on the technical solution of the present application, the distance between the plurality of antenna radiation units 110 can be adjusted and the working state of the plurality of antenna radiation units 110 can be controlled by the controller 300, so that the antenna can be quickly adjusted according to the actual needs, so that the antenna can better cover the target area. According to different application scenarios, the distance between the plurality of antenna radiation units 110 and the number of excited antenna radiation units 110 can be set to flexibly adjust the coverage range of the antenna to meet different coverage requirements.

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

[0039] In some embodiments of the present application, the plurality of antenna radiation units 110 are distributed along a vertical direction; wherein the vertical direction is perpendicular to a 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 of the plurality of antenna radiation units 110 in the vertical direction to adjust the directional pattern gain and the beam width of the target range. For example, when the antenna of the present application is carried by the unmanned aerial vehicle, the plurality of antenna radiation units 110 are distributed along the vertical direction; in order to adjust the vertical plane beam width and gain of the antenna, the telescopic unit 200 can be used to adjust the distance of the plurality of antenna radiation 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 plurality of antenna radiation units 110 distributed in the vertical direction, which can effectively avoid damage to the antenna during flight.

[0040] As shown in Figure 2 , in some embodiments of the present application, the airborne antenna further comprises a driver 400 connected between the controller 300 and the telescopic unit 200, and the controller 300 can control the working state of the driver 400 to realize synchronous control of the running state of the telescopic unit 200.

[0041] As shown in Figure 3 and Figure 4 , in some embodiments of the present application, the telescopic unit 200 comprises a first telescopic rod 210, the driver 400 comprises a piston air pump, the piston air pump and the first telescopic rod 210 are connected, and the plurality of 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 the first telescopic rod 210 is provided with a piston inside; when the first telescopic rod 210 needs to be stretched, the piston air pump can be used to inflate the inside of the first telescopic rod 210, and the piston provided inside the first telescopic rod 210 moves under the driving of the inhaled gas, thereby driving the first telescopic rod 210 to stretch; when the first telescopic rod 210 needs to be retracted, the piston air pump can be used to pump out the inside of the first telescopic rod 210, and the piston provided inside the first telescopic rod 210 will be retracted to one side of the piston air pump, thereby driving the first telescopic rod 210 to retract. When the distance between the plurality of antenna radiation units 110 needs to be adjusted, the working state of the piston air pump can be controlled by the controller 300, and the whole control process is simple and convenient.

[0042] As shown in Figure 3 and Figure 4As shown in the figure, in some embodiments of the present application, the telescopic unit 200 comprises a second telescopic rod, the driver 400 comprises a first motor, the first motor is connected with the second telescopic rod, the first motor is controlled by the controller 300, and the plurality of antenna radiation units 110 are arranged on the second telescopic rod; the controller 300 can control the first motor to make the second telescopic rod also move following the working state of the first motor. Specifically, the second telescopic rod is provided with a rack, the output shaft of the first motor is provided with a gear, the gear and the rack are engaged with each other, so that the first motor can drive the gear to rotate through the output shaft in the working state, the rotating gear can drive the rack to move, so that the second telescopic rod performs telescopic movement. Only the turning direction of the first motor needs to be changed to adjust the working state of the second telescopic rod, so as to realize the adjustment of the distance between the plurality of antenna radiation units 110, and the control process can be more convenient and accurate.

[0043] As shown in the figure, Figure 5 and Figure 6 As shown in the figure, in some embodiments of the present application, the telescopic unit 200 comprises a scissor lifting structure 220, the driver 400 comprises a second motor 410 and a sliding block 420, the sliding block 420 is connected to one end of the scissor lifting structure 220, and the plurality of antenna radiation units 110 are arranged on the scissor 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 scissor lifting structure 220 to move; when the scissor lifting structure 220 is folded, the distance between the plurality of antenna radiation units 110 will be reduced; when the scissor lifting structure 220 is unfolded, the distance between the plurality of antenna radiation units 110 will be increased. Exemplarily, the output shaft of the second motor 410 is connected with a screw rod, the sliding block 420 is sleeved on the screw rod, and the sliding block 420 is inserted between two mutually parallel guide rods, so that the screw rod rotates in the working process of the second motor 410, 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 scissor lifting structure 220, the scissor lifting structure 220 can be driven to fold or unfold.

[0044] It is worth noting that the plurality of antenna radiation units 110 are arranged on the scissor lifting structure 220 along the vertical direction, so that when the scissor lifting structure 220 is in the process of folding, the distance between the plurality of antenna radiation units 110 will be shortened, and in the fully folded state, the adjacent antenna radiation units 110 will be attached and overlapped, so that the plurality of antenna radiation units 110 can be well stored; when the scissor lifting structure 220 is in the process of stretching, the distance between the plurality of antenna radiation units 110 will be increased, and then the vertical plane beam width and gain of the antenna will change, and then it is suitable for various signal coverage scenarios.

[0045] In some embodiments of the present application, the onboard antenna has an operating state and a non-operating state; in order to make the antenna perform signal coverage better meet the demand, when the onboard antenna is in the operating state, the distance between the adjacent antenna radiation units 110 is between the first preset length and the second preset length; when the onboard antenna is in the non-operating state, the distance between the adjacent antenna radiation units 110 is less than the first preset length. Wherein, the first preset length and the second preset length are calculated based on the wavelength corresponding to the center frequency point of the operating frequency band of the antenna radiation unit 110. Exemplarily, in the working process, in order to realize effective coverage of the target range, the controller 300 sets the distance between the antenna radiation units 110 as L1, under the action of the driver 400, the telescopic unit 200 is in the stretched state, the center distance between the two adjacent antenna radiation units 110 of the N antenna radiation units 110 is defined as L1, and L1 is 0.4λ-0.75λ, wherein λ is the wavelength corresponding to the center frequency point of the operating frequency band of the antenna radiation unit 110; the setting of L1 can be based on the antenna array theory, if L1<0.4λ, it will cause strong coupling between the antenna radiation units 110, and then cause distortion of the vertical direction synthesis pattern; if L1>0.75λ, it will cause the vertical direction synthesis pattern to appear grating, energy to disperse, and low radiation efficiency, and at the same time, it is easy to cause the problems of adjacent area interference, inter-area coverage, etc. In the non-working process, in order to prevent the antenna from being damaged and to store the antenna, the controller 300 sets the distance between the antenna radiation units 110 as L2, under the action of the driver 400, the telescopic unit 200 is in the contracted state, and the center distance between the two adjacent antenna radiation units 110 of the N antenna radiation units 110 is defined as L2, wherein L2 is 0λ-0.4λ; in the case of L2 being 0λ, the entire antenna array is in the folded and contracted state, which can well prevent the antenna from being damaged and play a good protection role for the antenna.

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

[0047] As shown in the drawings, Figure 6 In some embodiments of the present application, the onboard antenna further includes a feeder 230, and the controller 300 of the antenna is connected with the feeding port 130 of each antenna radiation unit 110 through the feeder 230, so that the controller 300 can control the working state of the corresponding antenna radiation unit 110 through the feeder 230, thereby controlling the number of antenna radiation units 110 working; for example, the antenna array has 5 antenna radiation units 110, and 4 of them are powered through the feeder 230, so that the 4 antenna radiation units 110 can enter the working state of antenna radiation, and the remaining one antenna radiation unit 110 will not enter the working state of antenna radiation because it is not powered. By controlling the feeding port 130 of each antenna radiation unit 110, the working number of antenna radiation units 110 of the antenna array can be conveniently and quickly controlled and adjusted, thereby meeting different signal coverage requirements. It should be noted that the first telescopic rod 210 and the second telescopic rod 210 are both provided with the feeder 230, so as to control the feeding of the feeding port 130 of each antenna radiation unit 110.

[0048] It should be noted that in order to better cover the signal and also need to realize the light weight of the antenna, one antenna array can include 3-10 antenna radiation units 110. And in order to make the multiple antenna radiation units 110 more stably set, the telescopic unit 200 is arranged at the center area of each antenna radiation unit 110, and the balance effect of the center area is better, so that the antenna can be more stable during being carried by the unmanned aerial vehicle.

[0049] As shown in the drawings, Figure 7As shown, in some embodiments of the present application, each antenna radiation unit 110 includes several dipoles, each of which corresponds to a feeding port 130, so that the controller 300 can control each dipole of each antenna radiation unit 110 through the feeder 230. For example, an antenna radiation unit 110 includes 4 dipoles, each of which corresponds to a feeding port 130, when 3 dipoles need to be excited to work, only 3 feeding ports 130 need to be powered, so that the corresponding number of dipoles can be excited to work. Through the above setting, the independent control of the dipoles can be realized by controlling the feeding port 130 of each dipole, so as to better meet the different signal coverage requirements. Further, each dipole of each antenna radiation unit 110 can be independently controlled, so as to meet the energy saving requirement under the premise of meeting the signal coverage requirement. For example, an antenna radiation unit 110 has 4 dipoles, when 3 dipoles are excited to work, the signal coverage requirement can be met, if the 4 dipoles can only be controlled uniformly, it will cause waste of energy, therefore, when each dipole can be independently controlled, only 3 dipoles need to be controlled to enter the excited working state, so as to meet the signal coverage requirement and the energy saving requirement.

[0050] As Figures 8-11 shown, for example, an antenna radiation unit can include 4 dipoles; each dipole is arranged around the telescopic unit, which is represented as dipole 1, dipole 2, dipole 3 and dipole 4 in the figure, and each dipole corresponds to a dipole feeding port, which is represented as dipole feeding port 1, dipole feeding port 2, dipole feeding port 3 and dipole feeding port 4 in the figure. In the embodiments of the present application, the switching of the radiation direction can be realized by turning off the feeding excitation, so as to meet the efficient coverage in the horizontal specific direction and save energy. For example, when the dipole feeding ports 1, 2, 3 and 4 are all excited, the omnidirectional coverage in the horizontal direction can be realized; when one of the dipole feeding ports 1, 2, 3 and 4 is excited, the coverage in the horizontal single direction can be realized; when two of the dipole feeding ports 1, 2, 3 and 4 are excited, the local coverage in the horizontal two directions can be realized; when three of the dipole feeding ports 1, 2, 3 and 4 are excited, the local coverage in the horizontal three directions can be realized. Only the corresponding dipole feeding port needs to be fed to control the coverage of the antenna radiation unit, and the control process is simple and fast.

[0051] As Figures 12-13As shown, in some embodiments of the present application, preferably, one antenna radiation unit can include 4 dipoles, which can well satisfy the omnidirectional coverage in the horizontal direction; one antenna radiation unit can also include 3 dipoles, compared with 4 dipoles, 4 feeding ports need to be provided, 3 dipoles only need to provide 3 feeding ports, the power consumption is lower, but there is a risk of blind area coverage. One antenna radiation unit can also include 5 dipoles, compared with the setting of 4 dipoles, it can also well satisfy the requirement of signal coverage, but there is a problem of high power consumption.

[0052] In some embodiments of the present application, the number of dipoles can be multiple, and the telescopic unit is located at the center position of the antenna radiation unit. The multiple dipoles can be symmetrically arranged around the telescopic unit as the center, so that the signal can be better covered. Exemplarily, one antenna radiation unit can include 4 dipoles, which can be symmetrically arranged at equal intervals around the telescopic unit as the center to better realize the coverage of the signal. When one antenna radiation unit includes 5 dipoles, the 5 dipoles can be arranged at equal intervals around the telescopic unit as the center, or can not be arranged at equal intervals, which is not limited here.

[0053] In some examples of the present application, in order to facilitate the storage of the antenna array, the dipole of the embodiment of the present application can adopt the form of planar printing or flexible circuit board, which not only can better realize the lightweight of the antenna array, but also can facilitate the storage of the antenna.

[0054] As shown, Figure 14 As shown, in some embodiments of the present application, the antenna radiation unit further includes a load, and the load corresponds to the dipole one by one; for each dipole, a radio frequency switch is further arranged between the dipole and the feeding port; wherein the selection end of the radio frequency switch is connected to the dipole, so that the dipole is in an excited state, and the selection end of the radio frequency switch is connected to the load, so that the corresponding dipole is in a disconnected state. Exemplarily, by controlling the working state (such as closing\disconnecting, conducting\blocking) of the radio frequency switch (such as PIN tube), the antenna radiation unit can work in different modes, as follows: when the radio frequency switch 1 (such as PIN tube) switches the dipole 1 side, i.e. the dipole 1 is in an excited state; the radiation pattern realizes radiation towards the positive direction of the coordinate axis y (y+); when the radio frequency switch 1 (such as PIN tube) switches the load side, i.e. the dipole 1 is in a disconnected state, the radiation pattern of the positive direction of the y axis (y+) is not generated; the working mode of other dipoles refers to the above mode, which can realize the switching of the radiation mode in different directions; the multiple dipoles (4 in the example) on each radiation unit realize different excitation modes by using the principle scheme of the present application, wherein the total port is connected with the feeder 230 in the example to realize different beam switching and satisfy the specific coverage scenario.

[0055] A base station provided in one embodiment of the second aspect of this application includes the airborne antenna described in the first aspect embodiment above. It is worth noting that the base station in this embodiment is based on the same inventive concept as the airborne antenna in the first aspect embodiment above, and will not be described again here.

[0056] like Figures 1-3 As shown in one embodiment of the third aspect of this application, a transport vehicle includes a mounting base 500 and a base station disposed on the mounting base 500. A controller 300 is disposed on the mounting base 500. The mounting base 500 is used to mount and fix the antenna array to a drone; exemplarily, it can be mounted on the belly of the drone. In some preferred embodiments, the mounting base 500 can adopt a hollow box structure 310, so that when the antenna array is in a retracted state, it can be stored together with the telescopic unit 200 within the mounting base 500, providing excellent protection for the antenna array.

[0057] The above is a detailed description of the preferred embodiments of this application. However, this application is not limited to the above embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this application. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. An airborne antenna, comprising: an antenna radiation array, the antenna radiation array comprising a plurality of antenna radiation units, the plurality of antenna radiation units being distributed along a vertical direction; a telescopic unit, each of the plurality of antenna radiation units being connected to the telescopic unit; a controller, each of the antenna radiation units and the telescopic unit being connected to the controller, the controller being configured to adjust a distance of the plurality of antenna radiation units along the vertical direction by the telescopic unit and to control an operating state of the plurality of antenna radiation units; a feed line, the controller being connected to a feed port of each of the antenna radiation units by the feed line, the controller controlling the operating state of each of the antenna radiation units by the feed line; wherein each of the antenna radiation units comprises a plurality of dipoles, in a case where the number of the dipoles is more than one, each of the dipoles being connected to the feed port, wherein the dipoles correspond to the feed ports one by one, and the controller controls the operating state of the corresponding dipoles by the feed ports.

2. The antenna of claim 1, wherein, The airborne antenna further comprises a driver, and the controller controls the telescopic unit by the driver.

3. The antenna of claim 2, wherein, The telescopic unit comprises a first telescopic rod, the driver comprises 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 adjusts the telescopic rod by inflating or deflating the first telescopic rod.

4. The antenna of claim 2, wherein, The telescopic unit comprises a second telescopic rod, the driver comprises 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 drives the second telescopic rod to telescope.

5. The antenna of claim 2, wherein, The telescopic unit comprises a scissor lift structure, the driver comprises a second motor and a sliding block, the sliding block is connected to one end of the scissor lift structure, the scissor lift structure is connected to the antenna radiation unit, and the second motor controls the sliding block to move so that the scissor lift structure extends or contracts.

6. The antenna of claim 1, wherein, The airborne antenna has an operating state and a non-operating state; in a case where the airborne antenna is in the operating state, a distance between adjacent antenna radiation units is between a first preset length and a second preset length; In a case where the airborne antenna is in the non-operating state, the distance between adjacent antenna radiation units is less than the first preset length.

7. The antenna of claim 6, wherein, The first preset length and the second preset length are based on a wavelength corresponding to a center frequency point of an operating frequency band of the antenna radiation unit.

8. The antenna of claim 1, wherein, In a case where the number of the dipoles is more than one, the telescopic unit is arranged at the center of the plurality of dipoles.

9. The antenna of claim 1, wherein, Each of the antenna radiation units further comprises a load, the load corresponding to the dipoles one by one; for each of the dipoles, a radio frequency switch is further arranged between the dipole and the feed port; wherein a selection end of the radio frequency switch is connected to the dipole to make the dipole in an excited state, and the selection end of the radio frequency switch is connected to the load to make the dipole in a disconnected state.

10. A base station, characterized by The base station comprises the airborne antenna according to any one of claims 1 to 9.

11. A vehicle characterized by, The vehicle comprises a mounting base, and the base station according to claim 10 is arranged on the mounting base.

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