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CN-224232921-U - Unmanned aerial vehicle carries L wave band high gain qxcomm technology miniaturized sword type antenna

CN224232921UCN 224232921 UCN224232921 UCN 224232921UCN-224232921-U

Abstract

The utility model discloses an unmanned aerial vehicle-mounted L-band high-gain omnidirectional miniaturized knife-shaped antenna which comprises an antenna base and a composite substrate riveted on the antenna base, wherein an upper oscillator and a lower oscillator are arranged on the first side surface of the composite substrate at intervals, a coupling oscillator is arranged on the second side surface of the composite substrate, a socket is mounted on the antenna base, a coaxial cable is connected to the socket, an outer conductor of the coaxial cable is welded with the lower oscillator, an inner conductor of the coaxial cable is welded with the upper oscillator, and the antenna structure can have wide wave beam and high gain performance on the basis of realizing a light-weight and small-volume structure.

Inventors

  • SHEN YONG

Assignees

  • 绵阳市欧讯信息产业有限公司

Dates

Publication Date
20260512
Application Date
20250716

Claims (9)

  1. 1. The unmanned aerial vehicle-mounted L-band high-gain omnidirectional miniaturized knife-shaped antenna is characterized by comprising an antenna base (1) and a composite substrate (2) riveted on the antenna base (1), wherein an upper oscillator (3) and a lower oscillator (4) are arranged on the first side face of the composite substrate (2) at intervals, a coupling oscillator (5) is arranged on the second side face of the composite substrate (2), a socket (6) is mounted on the antenna base (1), a coaxial cable (7) is connected to the socket (6), an outer conductor of the coaxial cable (7) is welded with the lower oscillator (4), and an inner conductor of the coaxial cable (7) is welded with the upper oscillator (3).
  2. 2. The unmanned aerial vehicle-mounted L-band high-gain omnidirectional miniaturized blade antenna is characterized in that a first isolation groove (8) positioned between an upper vibrator (3) and a lower vibrator (4) is formed in the composite substrate (2).
  3. 3. The unmanned aerial vehicle-mounted L-band high-gain omnidirectional miniaturized blade antenna is characterized in that a through groove (9) positioned between lower vibrators (4) is formed in the composite substrate (2).
  4. 4. The unmanned aerial vehicle-mounted L-band high-gain omnidirectional miniaturized blade antenna according to claim 3, wherein the composite substrate (2) is provided with a second isolation groove (10) positioned on the coupling oscillator (5).
  5. 5. The unmanned aerial vehicle-mounted L-band high-gain omnidirectional miniaturized blade antenna according to any one of claims 1-4, wherein the upper vibrator (3), the lower vibrator (4) and the coupling vibrator (5) are all of a super-surface structure.
  6. 6. The unmanned aerial vehicle-mounted L-band high-gain omnidirectional miniaturized blade-type antenna is characterized in that two connecting blocks (11) are arranged on the antenna base (1) at intervals, clamping grooves (12) are formed in the two connecting blocks (11), the composite substrate (2) is clamped in the clamping grooves (12), and rivets for fastening the composite substrate (2) are arranged on the connecting blocks (11).
  7. 7. The unmanned aerial vehicle-mounted L-band high-gain omnidirectional miniaturized blade antenna is characterized in that a lockbolt (13) is arranged on the socket (6), and the lockbolt (13) is fastened on the antenna base (1).
  8. 8. The unmanned aerial vehicle-mounted L-band high-gain omnidirectional miniaturized blade antenna is characterized in that an antenna housing (14) covering the composite substrate (2) is mounted on the antenna base (1).
  9. 9. The unmanned aerial vehicle-mounted L-band high-gain omnidirectional miniaturized blade antenna is characterized in that a threaded connection structure (15) is arranged at the connecting end of the socket (6).

Description

Unmanned aerial vehicle carries L wave band high gain qxcomm technology miniaturized sword type antenna Technical Field The utility model relates to the technical field of a blade antenna, in particular to an unmanned aerial vehicle-mounted L-band high-gain omnidirectional miniaturized blade antenna. Background The unmanned aerial vehicle-mounted knife-shaped antenna is a component for radiating and receiving electromagnetic waves in a communication system, and has the basic functions of converting high-frequency oscillation signals output by a transmitter into electromagnetic waves to radiate into the air on one hand, converting the electromagnetic waves received from the air into high-frequency oscillation signals to be transmitted to a receiver on the other hand, and the efficiency index is the ratio of the radiation power to the input power of the antenna, so that the requirements of technical indexes and the requirements of the use environment conditions of the unmanned aerial vehicle are met. However, the unmanned aerial vehicle does not affect normal flight when the required load is low, and the types of the antenna which can be adopted under the conditions of light weight and small volume are fewer, generally comprise monopole whip antenna, inverted F antenna, slot antenna, magneto dipole and the like, but after being limited by weight and volume, the antenna structure is difficult to meet the single-feed point multi-mode excitation performance of omnidirectional radiation and high gain, and the broadband expansion can be affected after miniaturization. Disclosure of utility model The utility model aims to provide an unmanned aerial vehicle-mounted L-band high-gain omnidirectional miniaturized blade antenna, which has the advantages that the antenna structure can have wide wave beam and high gain on the basis of realizing light weight and small volume structure. In order to achieve the above purpose, the present utility model provides the following technical solutions: The utility model provides an unmanned aerial vehicle carries L wave band high gain qxcomm technology miniaturization sword type antenna, includes antenna base and the compound base plate of riveting on the antenna base, compound base plate's first side interval is equipped with oscillator and lower oscillator, compound base plate's second side is equipped with the coupling oscillator, install the socket on the antenna base, be connected with coaxial cable on the socket, coaxial cable's outer conductor and lower oscillator welding, coaxial cable's inner conductor and last oscillator welding. Preferably, a first isolation groove is formed in the composite substrate and is located between the upper vibrator and the lower vibrator. Preferably, the composite substrate is provided with a through groove between the lower vibrators. Preferably, the composite substrate is provided with a second isolation groove positioned on the coupling vibrator. Preferably, the upper vibrator, the lower vibrator and the coupling vibrator are all super-surface structures. Preferably, two connecting blocks are arranged on the antenna base at intervals, clamping grooves are formed in the two connecting blocks, the composite substrate is clamped in the clamping grooves, and rivets for fastening the composite substrate are arranged on the connecting blocks. Preferably, the socket is provided with a lockbolt, and the lockbolt is fastened on the antenna base. Preferably, an antenna housing covering the composite substrate is mounted on the antenna base. Preferably, the connecting end of the socket is provided with a threaded connection structure. The beneficial effects are that: The upper vibrator, the lower vibrator and the coupling vibrator are integrated simultaneously through the composite substrate to form the mixed radiator structure, so that the whole antenna is small in size and light in weight, the whole weight can be smaller than 30g, the whole structure has smaller wind resistance, and the increment of resistance coefficient delta Cd is smaller than 0.003, so that the application of the combined radiator structure on an unmanned aerial vehicle is satisfied; Meanwhile, after the mixed radiator structure is adopted, the combination of the magnetic dipole and the electric dipole is realized, the wide wave beam and the high gain are realized, the effective expansion bandwidth is more than or equal to 200MHz, meanwhile, the impedance matching problem under a limited ground network is solved, the antenna voltage standing wave is small, and the VSWR is less than or equal to 1.6. Drawings FIG. 1 is a schematic diagram of an embodiment of the present utility model; FIG. 2 is a schematic view of a first view of a hybrid radiator structure according to an embodiment of the present utility model; FIG. 3 is a schematic view of a second view of a hybrid radiator structure according to an embodiment of the present utility model; FIG. 4 is a schematic diagram of an ant