Reconfigurable array antenna device for unmanned aerial vehicle

Abstract

The application belongs to the technical field of unmanned aerial vehicles, and discloses a reconfigurable array antenna device for unmanned aerial vehicles, which comprises an unmanned aerial vehicle and an antenna reflecting panel assembly, an array arm assembly is arranged below the antenna reflecting panel assembly, a resisting arm assembly is arranged on the top of the array arm assembly, the array arm assembly drives the antenna reflecting panel assembly to form an array antenna structure in an unfolded use or a folded use through the driving of the resisting arm assembly, a locking arm assembly is arranged at the bottom of the resisting arm assembly, the use state of the antenna reflecting panel assembly is locked through the locking arm assembly, the array arm assembly is detachably installed on the top of the unmanned aerial vehicle through a mounting arm assembly, the locking spring pushes the locking toothed plate, the locking toothed plate is engaged with the positioning toothed ring, the position of the second movable arm on the array arm seat is locked, and the use state of the antenna reflecting panel assembly is locked.

Description

Technical Field

[0001] This invention belongs to the field of unmanned aerial vehicle (UAV) technology, and specifically relates to a reconfigurable array antenna device for UAVs. Background Technology

[0002] Currently, array antenna devices for UAVs mainly suffer from the following shortcomings:

[0003] Fixed structure and lack of reconfigurability: Most existing UAV antennas adopt a fixed design, which cannot dynamically adjust the antenna shape (such as unfolding or folding) during flight according to mission requirements. This not only limits the antenna's operating frequency band and radiation characteristics, but also causes UAVs to still have to withstand greater aerodynamic drag and structural loads during non-communication phases, affecting flight efficiency and endurance.

[0004] Unreliable deployment and locking mechanisms: Some deployable antennas use simple mechanical hinges or manual adjustments, lacking reliable locking mechanisms. When the UAV is affected by airflow disturbances, acceleration changes, or vibrations, the antenna is prone to displacement or loosening, leading to decreased antenna performance or even structural damage.

[0005] Inconvenient assembly and disassembly hinders modular deployment: Existing antennas are mostly fixed to the drone fuselage using bolts, welding, or other methods. The assembly and disassembly process is cumbersome and time-consuming, making it difficult to achieve rapid replacement or modular configuration. In situations requiring frequent antenna type changes or maintenance, this design severely restricts the drone's mission adaptability and operational efficiency.

[0006] Complex driving and control methods: Some reconfigurable antennas use motors, servos or hydraulic drives. Although they can achieve a certain degree of motion control, the system is heavy, consumes a lot of power and has complex control logic, which is not conducive to integration and application on resource-constrained UAV platforms.

[0007] Therefore, there is an urgent need for a reconfigurable array antenna device for UAVs that combines lightweight structure, lockable state, quick assembly / disassembly, and intelligent drive to improve the flexibility, reliability, and environmental adaptability of UAV communication systems. To this end, this invention proposes a reconfigurable array antenna device based on electromagnetic drive and mechanical linkage. By integrating multi-arm linkage, magnetic drive, toothed locking, and quick-release interfaces, it achieves stable switching and reliable fixation of the antenna between folded and unfolded states, providing an efficient and reliable antenna solution for UAV communication missions. Summary of the Invention

[0008] To address the problems mentioned in the background section, this invention provides a reconfigurable array antenna device for unmanned aerial vehicles (UAVs) with a lockable state feature.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a reconfigurable array antenna device for unmanned aerial vehicles (UAVs), comprising a UAV and an antenna reflector panel assembly, an array arm assembly disposed below the antenna reflector panel assembly, and a contact arm assembly disposed at the top of the array arm assembly. The contact arm assembly drives the array arm assembly to form an array antenna structure that can be unfolded or folded for use. A locking arm assembly is disposed at the bottom of the contact arm assembly to lock the antenna reflector panel assembly in its operational state. A mounting arm assembly is disposed on the top of the UAV, and the array arm assembly is quickly and easily mounted on the top of the UAV via the mounting arm assembly.

[0010] In a preferred embodiment of a reconfigurable array antenna device for unmanned aerial vehicles, the antenna reflector panel assembly includes multiple reflector panels. A first gear is fixedly disposed at one end of the reflector panel, and a second gear is fixedly disposed at the other end of the reflector panel. The second gear is rotatably disposed on a connecting platform. Two second gears on adjacent reflector panels mesh with each other, and two first gears on adjacent reflector panels mesh with each other.

[0011] In a preferred embodiment of a reconfigurable array antenna device for unmanned aerial vehicles (UAVs), the array arm assembly includes an array arm base. A mounting arm is fixedly disposed at the bottom of the array arm base, and a locking groove is formed on the mounting arm. A sliding groove is formed on the outer wall of the array arm base. A first fixed arm, a first movable arm, and a second movable arm are disposed around the array arm base. The first fixed arm is fixedly disposed on the outer wall of the array arm base. A slider is fixedly disposed at one end of the first and second movable arms. The first and second movable arms slide on the outer wall of the array arm base through the slider and the sliding groove. A first electromagnet and a base are fixedly disposed at the top of the array arm base. An arc-shaped guide rod is fixedly disposed on the base. A seat groove is formed inside the array arm base, and a positioning toothed ring is fixedly disposed on the inner wall of the seat groove. An arm end plate is fixedly disposed at the top of the first fixed arm, the first movable arm, and the second movable arm.

[0012] In a preferred embodiment of a reconfigurable array antenna device for unmanned aerial vehicles, the mounting arm assembly includes a mounting arm cylinder, a limiting ring platform is fixedly provided at the top of the mounting arm cylinder, and a cylinder groove is opened in the middle of the mounting arm cylinder. A locking ball is provided inside the cylinder groove, and a conical sleeve is fitted at the bottom of the mounting arm cylinder. A push spring is fixedly provided at the bottom of the conical sleeve.

[0013] In a preferred embodiment of a reconfigurable array antenna device for unmanned aerial vehicles, the contact arm assembly includes a perforated contact arm, with a contact arm connecting rod and a first strong magnet fixedly disposed at both ends of the perforated contact arm, a perforated base plate fixedly disposed at the bottom of the first strong magnet, a second strong magnet fixedly disposed on the perforated base plate, and an arc-shaped push spring fixedly disposed on one side of the perforated contact arm.

[0014] In a preferred embodiment of a reconfigurable array antenna device for unmanned aerial vehicles, the locking arm assembly includes a locking crossbar, with locking tooth plates and a second electromagnet fixedly disposed at both ends of the locking crossbar, and a locking spring sleeved on the locking crossbar.

[0015] In a preferred embodiment of a reconfigurable array antenna device for unmanned aerial vehicles, the locking crossbar slides on a perforated base plate, the locking spring and locking toothed plate are located in front of the perforated base plate, the second electromagnet is located behind the perforated base plate, and the second electromagnet is directly opposite the second strong magnet.

[0016] In a preferred embodiment of a reconfigurable array antenna device for unmanned aerial vehicles, the abutment arm linkage is fixedly mounted on a second movable arm. At this time, the perforated abutment arm is sleeved on the arc-shaped guide rod and slides on the arc-shaped guide rod. The arc-shaped push spring is sleeved on the arc-shaped guide rod, and the two ends of the arc-shaped push spring abut against the base and the perforated abutment arm, respectively. The first strong magnet is directly opposite the first electromagnet. The perforated base plate and the locking arm assembly are located in the seat groove. The locking tooth plate is directly opposite the positioning tooth ring.

[0017] In a preferred embodiment of a reconfigurable array antenna device for a drone, the bottom of the mounting arm is fixedly mounted on the top of the drone, the top and bottom of the push spring respectively abut against the conical sleeve and the top body of the drone, and the mounting arm is inserted into the mounting arm.

[0018] In a preferred embodiment of a reconfigurable array antenna device for unmanned aerial vehicles, the first gear is rotatably mounted on the arm end platform, and the two ends of the locking spring abut against the locking tooth plate and the perforated base plate, respectively.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. The present invention provides an array arm assembly below the antenna reflector panel assembly and an abutment arm assembly at the top of the array arm assembly. By driving the array arm assembly through the abutment arm assembly, the array arm assembly drives the antenna reflector panel assembly to form an array antenna structure for unfolding or folding use. Through the above structure, the problem of folding and unfolding the array antenna during use is solved.

[0021] 2. The bottom of the contact arm assembly of the present invention is provided with a locking arm assembly. The locking arm assembly locks the antenna reflector panel assembly in use. The locking spring pushes the locking tooth plate, causing the locking tooth plate to engage and abut against the positioning tooth ring, thereby locking the position of the second movable arm on the array arm seat, and thus locking the antenna reflector panel assembly in use.

[0022] 3. The present invention provides an array arm assembly on the top fuselage of the drone. The array arm assembly is quickly installed on the top of the drone via the mounting arm assembly. This structure enables the array arm assembly to be quickly locked and fixed on the top of the drone, thereby enabling quick assembly and disassembly between the antenna reflector panel assembly on the top of the array arm assembly and the drone. Attached Figure Description

[0023] Figure 1 This is a perspective view of the present invention;

[0024] Figure 2 This is a perspective view of some components of the present invention;

[0025] Figure 3 This is a perspective view of the antenna reflector panel assembly of the present invention;

[0026] Figure 4 This is a perspective view of the array arm assembly of the present invention;

[0027] Figure 5 A cross-sectional view of the mounting arm assembly of the present invention;

[0028] Figure 6 This is a perspective view of the contact arm assembly and locking arm assembly of the present invention.

[0029] Explanation of reference numerals in the attached drawings: 100, UAV; 200, Antenna reflector panel assembly; 201, Reflector panel; 202, First gear; 203, Second gear; 204, Connecting platform; 300, Array arm assembly; 301, Array arm base; 302, First fixed arm; 303, Arc-shaped guide rod; 304, Base; 305, Seat groove; 306, Positioning gear ring; 307, First electromagnet; 308, Second movable arm; 309, Arm end plate; 310, First movable arm; 311, Slider; 312, Mounting arm; 313, Clamping groove; 3 14. Slide groove; 400. Mounting arm assembly; 401. Mounting arm cylinder; 402. Cylinder groove; 403. Locking ball; 404. Push spring; 405. Conical sleeve; 406. Limiting ring platform; 500. Abutment arm assembly; 501. Abutment arm with holes; 502. Arc-shaped push spring; 503. Abutment arm connecting rod; 504. First strong magnet; 505. Bottom plate with holes; 506. Second strong magnet; 600. Locking arm assembly; 601. Locking tooth plate; 602. Locking spring; 603. Locking crossbar; 604. Second electromagnet. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figures 1-6 As shown, the present invention provides a reconfigurable array antenna device for unmanned aerial vehicles (UAVs), including a UAV 100 and an antenna reflector panel assembly 200. An array arm assembly 300 is disposed below the antenna reflector panel assembly 200, and an abutment arm assembly 500 is disposed at the top of the array arm assembly 300. By driving the array arm assembly 300 through the abutment arm assembly 500, the array arm assembly 300 drives the antenna reflector panel assembly 200 to form an array antenna structure for unfolding or folding use. A locking arm assembly 600 is disposed at the bottom of the abutment arm assembly 500 to lock the antenna reflector panel assembly 200 in its use state. An mounting arm assembly 400 is disposed on the top body of the UAV 100, and the array arm assembly 300 is quickly and easily mounted on the top of the UAV 100 through the mounting arm assembly 400.

[0032] In a preferred embodiment, please refer to Figure 3 The antenna reflector panel assembly 200 includes multiple reflector panels 201. A first gear 202 is fixedly provided at one end of one side of the reflector panel 201, and a second gear 203 is fixedly provided at the other end of the reflector panel 201. The second gear 203 is rotatably mounted on the connecting platform 204. Two second gears 203 on adjacent reflector panels 201 mesh with each other, and two first gears 202 on adjacent reflector panels 201 mesh with each other.

[0033] In this embodiment, the first gear 202 is rotatably mounted on the arm end plate 309.

[0034] In a preferred embodiment, please refer to Figure 4The array arm assembly 300 includes an array arm base 301. A mounting arm 312 is fixedly mounted on the bottom of the array arm base 301. A locking groove 313 is formed on the mounting arm 312. A sliding groove 314 is formed on the outer wall of the array arm base 301. A first fixed arm 302, a first movable arm 310, and a second movable arm 308 are arranged around the array arm base 301. The first fixed arm 302 is fixedly mounted on the outer wall of the array arm base 301. A slider 311 is fixedly mounted at one end of the first movable arm 310 and the second movable arm 308. The first movable arm 310 and the second movable arm 308 slide on the outer wall of the array arm base 301 via the slider 311 and the slide groove 314. The top of the array arm base 301 is fixedly provided with a first electromagnet 307 and a base 304. The base 304 is fixedly provided with an arc-shaped guide rod 303. The array arm base 301 has a seat groove 305 inside. The inner wall of the seat groove 305 is fixedly provided with a positioning toothed ring 306. The tops of the first fixed arm 302, the first movable arm 310 and the second movable arm 308 are all fixedly provided with arm end platforms 309.

[0035] In this embodiment, the mounting arm 312 is inserted into the mounting arm cylinder 401.

[0036] In a preferred embodiment, please refer to Figure 5 The mounting arm assembly 400 includes a mounting arm cylinder 401. A limiting ring platform 406 is fixedly provided at the top of the mounting arm cylinder 401, and a cylinder groove 402 is provided in the middle of the mounting arm cylinder 401. A locking ball 403 is provided inside the cylinder groove 402. A conical sleeve 405 is fitted at the bottom of the mounting arm cylinder 401, and a push spring 404 is fixedly provided at the bottom of the conical sleeve 405.

[0037] In this embodiment, the bottom of the mounting arm 401 is fixedly mounted on the top of the drone 100.

[0038] In this embodiment, the top and bottom of the push spring 404 abut against the tapered sleeve 405 and the top body of the drone 100, respectively.

[0039] In a preferred embodiment, please refer to Figure 6 The contact arm assembly 500 includes a perforated contact arm 501. A contact arm connecting rod 503 and a first strong magnet 504 are fixedly installed at both ends of the perforated contact arm 501. A perforated base plate 505 is fixedly installed at the bottom of the first strong magnet 504. A second strong magnet 506 is fixedly installed on the perforated base plate 505. An arc-shaped push spring 502 is fixedly installed on one side of the perforated contact arm 501.

[0040] In this embodiment, the abutment arm link 503 is fixedly mounted on a second movable arm 308.

[0041] In this embodiment, the perforated contact arm 501 is sleeved on the arc-shaped guide rod 303 and slides on the arc-shaped guide rod 303.

[0042] In this embodiment, the arc-shaped push spring 502 is sleeved on the arc-shaped guide rod 303.

[0043] In this embodiment, the two ends of the arc-shaped push spring 502 abut against the base 304 and the perforated abutment arm 501, respectively.

[0044] In this embodiment, the first powerful magnet 504 is directly opposite the first electromagnet 307.

[0045] In this embodiment, the perforated base plate 505 and the locking arm assembly 600 are located within the seat groove 305.

[0046] In a preferred embodiment, please refer to Figure 6 The locking arm assembly 600 includes a locking crossbar 603, with locking tooth plates 601 and a second electromagnet 604 fixedly installed at both ends of the locking crossbar 603, and a locking spring 602 sleeved on the locking crossbar 603.

[0047] In this embodiment, the locking crossbar 603 slides on the perforated base plate 505.

[0048] In this embodiment, the locking spring 602 and the locking tooth plate 601 are located in front of the perforated base plate 505.

[0049] In this embodiment, the second electromagnet 604 is located behind the perforated base plate 505.

[0050] In this embodiment, the second electromagnet 604 is directly opposite the second powerful magnet 506.

[0051] In this embodiment, the locking tooth plate 601 is directly opposite the positioning tooth ring 306.

[0052] In this embodiment, the two ends of the locking spring 602 abut against the locking tooth plate 601 and the perforated base plate 505, respectively.

[0053] The working principle of this invention is as follows: To solve the problem of folding and unfolding the array antenna during use, an array arm assembly 300 is provided below the antenna reflector panel assembly 200, and an abutment arm assembly 500 is provided at the top of the array arm assembly 300. The abutment arm assembly 500 drives the array arm assembly 300, causing the array arm assembly 300 to drive the antenna reflector panel assembly 200 to form an array antenna structure for unfolding or folding use. Specifically, a second gear 203 is rotatably mounted on the connecting platform 204, and two second gears 203 on adjacent reflector panels 201 mesh with each other. A first gear 202 is rotatably mounted on the connecting platform 204. The two first gears 202 on two adjacent reflector panels 201 are meshed on the arm end plate 309. The abutment arm connecting rod 503 is fixedly mounted on a second movable arm 308. When the array antenna is deployed, the arc-shaped push spring 502 generates a pushing force on the perforated abutment arm 501, causing the perforated abutment arm 501 to drive a second movable arm 308 to slide around the array arm base 301 via the abutment arm connecting rod 503. At this time, when the second movable arm 308 rotates and unfolds around the array arm base 301, the second movable arm 308 drives a reflector panel 201 to slide around the array arm via the arm end plate 309. When the base 301 is unfolded, as one reflective panel 201 unfolds, the two second gears 203 on two adjacent reflective panels 201 mesh with each other, and the two first gears 202 on two adjacent reflective panels 201 mesh with each other. At this time, multiple reflective panels 201 form a synchronous unfolding structure around the array arm base 301. This structure enables the array antenna to be unfolded when in use. Similarly, when the array antenna is folded for use, the first electromagnet 307 is energized. At this time, the first electromagnet 307 pushes the perforated contact arm 501 to slide through the first strong magnet 504. The perforated contact arm 501 then slides through the contact arm connecting rod. 503 drives a second movable arm 308 to retract and slide outside the array arm base 301. During the process of the second movable arm 308 retracting and sliding outside the array arm base 301, the second movable arm 308 drives a reflective panel 201 to retract and move around the array arm base 301. During this process, since the two second gears 203 on the two adjacent reflective panels 201 mesh with each other, and the two first gears 202 on the two adjacent reflective panels 201 mesh with each other, a synchronous folding structure is formed between the multiple reflective panels 201 around the array arm base 301. Through this structure, the folding of the array antenna is realized when in use.

[0054] Based on the above, in order to solve the locking problem of the array antenna in folded and unfolded use states, the bottom of the contact arm assembly 500 of the present invention is provided with a locking arm assembly 600. The locking arm assembly 600 locks the use state of the antenna reflector panel assembly 200. Specifically, the locking crossbar 603 slides on the perforated base plate 505, the locking spring 602 and the locking toothed plate 601 are located in front of the perforated base plate 505, and the second electromagnet 604 is located behind the perforated base plate 505, and the second electromagnet 604 is directly opposite the second strong magnet 506. In actual use, the two ends of the locking spring 602 abut against the locking toothed plate 601 and the perforated base plate 505 respectively, and the locking spring 602 pushes the locking toothed plate 601. This causes the locking toothed plate 601 to engage with the positioning toothed ring 306, thereby locking the second movable arm 308 on the array arm seat 301 and locking the antenna reflector panel assembly 200 in use. Simultaneously, when the use of the antenna reflector panel assembly 200 needs adjustment, the second electromagnet 604 is energized. Through the repulsive force between the second strong magnets 506, the locking crossbar 603 causes the locking toothed plate 601 to slide backward on the perforated base plate 505. At this time, the pushing engagement between the locking toothed plate 601 and the positioning toothed ring 306 is released, preventing the second movable arm 308 from being locked, thus allowing adjustment of the use of the antenna reflector panel assembly 200.

[0055] Based on the above, to facilitate the quick disassembly and reassembly of the antenna reflector panel assembly 200 on the UAV 100, a mounting arm assembly 400 is provided on the top fuselage of the UAV 100. The array arm assembly 300 is quickly and easily mounted on the top of the UAV 100 via the mounting arm assembly 400. Specifically, the bottom of the mounting arm cylinder 401 is fixedly mounted on the top of the UAV 100, and the top and bottom of the push spring 404 respectively abut against the conical sleeve 405 and the top fuselage of the UAV 100. In actual use, the mounting arm 312 is inserted into the mounting arm cylinder 401. At this time, the push spring 404 pushes the conical sleeve 405, causing the conical sleeve 405 to slide towards the top of the mounting arm 401. During the upward sliding of the conical sleeve 405, the conical inner wall of the conical sleeve 405 abuts against the locking ball 403, causing the locking ball 403 to be locked in the locking groove 313 on the mounting arm 312. Through this structure, the array arm assembly 300 is quickly locked and fixed on the top of the UAV 100, thereby realizing the quick assembly and disassembly between the antenna reflector panel assembly 200 on the top of the array arm assembly 300 and the UAV 100.

[0056] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reconfigurable array antenna device for unmanned aerial vehicles (UAVs), comprising a UAV (100) and an antenna reflector panel assembly (200), characterized in that, An array arm assembly (300) is provided below the antenna reflector panel assembly (200), and a contact arm assembly (500) is provided on the top of the array arm assembly (300). The contact arm assembly (500) drives the array arm assembly (300) to form an array antenna structure that can be unfolded or folded for use. A locking arm assembly (600) is provided at the bottom of the contact arm assembly (500) to lock the antenna reflector panel assembly (200) in its use state. An mounting arm assembly (400) is provided on the top body of the UAV (100), and the array arm assembly (300) is quickly mounted on the top of the UAV (100) through the mounting arm assembly (400). The antenna reflector panel assembly (200) includes a plurality of reflector panels (201). A first gear (202) is fixedly provided at one end of one side of the reflector panel (201), and a second gear (203) is fixedly provided at the other end of the reflector panel (201). The second gear (203) is rotatably mounted on the connecting platform (204). Two second gears (203) on adjacent reflector panels (201) mesh with each other, and two first gears (202) on adjacent reflector panels (201) mesh with each other. The array arm assembly (300) includes an array arm base (301), a mounting arm (312) fixedly disposed at the bottom of the array arm base (301), a clamping groove (313) provided on the mounting arm (312), a sliding groove (314) provided on the outer wall of the array arm base (301), and a first fixed arm (302), a first movable arm (310), and a second movable arm (308) disposed around the array arm base (301). The first fixed arm (302) is fixedly disposed on the outer wall of the array arm base (301), and a slider (311) is fixedly disposed at one end of the first movable arm (310) and the second movable arm (308). The first movable arm (310) and the second movable arm (308) slide on the outer wall of the array arm base (301) via a slider (311) and a groove (314). The array arm base (301) is fixedly provided with a first electromagnet (307) and a base (304) at the top. An arc-shaped guide rod (303) is fixedly provided on the base (304). A seat groove (305) is opened inside the array arm base (301). A positioning toothed ring (306) is fixedly provided on the inner wall of the seat groove (305). An arm end platform (309) is fixedly provided at the top of the first fixed arm (302), the first movable arm (310), and the second movable arm (308). The abutment arm assembly (500) includes a perforated abutment arm (501), with an abutment arm connecting rod (503) and a first strong magnet (504) fixedly installed at both ends of the perforated abutment arm (501). A perforated base plate (505) is fixedly installed at the bottom of the first strong magnet (504), and a second strong magnet (506) is fixedly installed on the perforated base plate (505). An arc-shaped push spring (502) is fixedly installed on one side of the perforated abutment arm (501). The locking arm assembly (600) includes a locking crossbar (603), with a locking tooth plate (601) and a second electromagnet (604) fixedly installed at both ends of the locking crossbar (603), and a locking spring (602) sleeved on the locking crossbar (603).

2. The reconfigurable array antenna device for unmanned aerial vehicles according to claim 1, characterized in that, The mounting arm assembly (400) includes a mounting arm cylinder (401), a limiting ring platform (406) is fixedly provided at the top of the mounting arm cylinder (401), and a cylinder groove (402) is provided in the middle of the mounting arm cylinder (401). A locking ball (403) is provided inside the cylinder groove (402), and a conical sleeve (405) is sleeved at the bottom of the mounting arm cylinder (401). A push spring (404) is fixedly provided at the bottom of the conical sleeve (405).

3. The reconfigurable array antenna device for unmanned aerial vehicles according to claim 1, characterized in that, The locking crossbar (603) slides on the perforated base plate (505), the locking spring (602) and the locking tooth plate (601) are located in front of the perforated base plate (505), the second electromagnet (604) is located behind the perforated base plate (505), and the second electromagnet (604) is directly opposite the second strong magnet (506).

4. A reconfigurable array antenna device for unmanned aerial vehicles according to claim 1, characterized in that, The abutment arm connecting rod (503) is fixedly mounted on a second movable arm (308). At this time, the perforated abutment arm (501) is sleeved on the arc-shaped guide rod (303) and slides on the arc-shaped guide rod (303). The arc-shaped push spring (502) is sleeved on the arc-shaped guide rod (303). The two ends of the arc-shaped push spring (502) abut against the base (304) and the perforated abutment arm (501) respectively. The first strong magnet (504) is opposite to the first electromagnet (307). The perforated base plate (505) and the locking arm assembly (600) are located in the seat groove (305). The locking tooth plate (601) is opposite to the positioning tooth ring (306).

5. A reconfigurable array antenna device for unmanned aerial vehicles according to claim 2, characterized in that, The bottom of the mounting arm (401) is fixedly mounted on the top of the drone (100). The top and bottom of the push spring (404) abut against the tapered sleeve (405) and the top body of the drone (100) respectively. The mounting arm (312) is inserted into the mounting arm (401).

6. A reconfigurable array antenna device for unmanned aerial vehicles according to claim 1, characterized in that, The first gear (202) is rotatably mounted on the arm end plate (309), and the two ends of the locking spring (602) abut against the locking tooth plate (601) and the perforated bottom plate (505), respectively.

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