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CN-121985499-A - Broadband power amplifier device for unmanned aerial vehicle communication

CN121985499ACN 121985499 ACN121985499 ACN 121985499ACN-121985499-A

Abstract

The invention belongs to the field of communication devices, in particular to a broadband power amplifier device for unmanned aerial vehicle communication, which comprises a main body, a pneumatic bin and a conducting mechanism, wherein the main body is arranged on an unmanned aerial vehicle body and comprises a fixed bin, a heat conducting plate is fixedly arranged in an inner cavity of the fixed bin, the fixed bin is provided with at least two groove bodies, the pneumatic bin is provided with a movable shaft, the direction of the movable shaft is set to be a first direction, the movable shaft can be driven by atmospheric pressure to axially move along the first direction, the movable shaft is provided with a plurality of tooth grooves, the conducting mechanism is arranged on the fixed bin and comprises an adjusting probe, two sides of the adjusting probe are in sliding connection with a gradual-change microstrip impedance line.

Inventors

  • Zhong Rongzu
  • XU HAORAN
  • CHEN MINGYANG
  • HUANG DONGMING
  • LI JIAN

Assignees

  • 福建灵信信息科技有限公司

Dates

Publication Date
20260505
Application Date
20260408

Claims (10)

  1. 1. A broadband power amplifier apparatus for unmanned aerial vehicle communication, comprising: The main body (100) is arranged on the unmanned aerial vehicle body and comprises a fixed bin (110), a heat conducting plate (111) is fixedly arranged in an inner cavity of the fixed bin (110), at least two groove bodies are formed in the fixed bin (110), the main body (100) further comprises a fixed plate (112), the fixed plate (112) is fixed in the inner cavity of the fixed bin (110), a power amplification unit (113) and a broadband impedance matching component (114) are fixedly arranged at the top of the heat conducting plate (111), and the input end of the power amplification unit (113) is used for receiving radio frequency input signals of an unmanned aerial vehicle communication system and the output end of the power amplification unit is electrically connected with the input end of the broadband impedance matching component (114); The pneumatic bin (200) is provided with a movable shaft (213), the direction in which the movable shaft (213) is located is set to be a first direction, the movable shaft (213) can be driven by atmospheric pressure to axially move along the first direction, and the movable shaft (213) is provided with a plurality of tooth grooves; The transmission mechanism (300) is arranged on the fixed bin (110), the transmission mechanism (300) comprises an adjusting probe (321), two sides of the adjusting probe (321) are in sliding connection with a gradual micro-band impedance line (322), the gradual micro-band impedance line (322) is used for carrying out broadband impedance matching on an amplified signal output by the power amplification unit (113), and the pneumatic bin (200) can provide power for the transmission mechanism (300) through a movable shaft (213) so that the adjusting probe (321) slides on the gradual micro-band impedance line (322) to form broadband power adjustment for communication.
  2. 2. The broadband power amplifier apparatus for unmanned aerial vehicle communication according to claim 1, wherein the conduction mechanism (300) comprises a connecting rod (310), the main body (100) is internally provided with a heat dissipation mechanism (400) which is provided with at least two heat dissipation fins (430), the heat dissipation fins (430) are arranged under the heat conduction plate (111) to absorb heat emitted on the heat conduction plate (111), and when the movable shaft (213) moves along the first direction, the heat dissipation fins (430) can be unfolded or contracted along a groove body formed in the fixed bin (110); The heat dissipation mechanism (400) comprises a transmission gear (410), the transmission gear (410) is meshed with a plurality of tooth grooves formed in the movable shaft (213), one side of the outer surface of the movable shaft (213) is hinged to the connecting rod (310), so that when the movable shaft (213) moves along a first direction, the transmission gear (410) rotates along with the meshing of the transmission gear and the tooth grooves, and the end face of the connecting rod (310) moves synchronously along the first direction.
  3. 3. The broadband power amplifier apparatus for unmanned aerial vehicle communication according to claim 1, wherein said air pressure cabin (200) comprises a connecting member (210), an elastic metal membrane (211), a separating plate (212), and a rubber shock pad (214); The elastic metal membrane (211) is fixed at the top of the connecting piece (210) so that a sealing cavity is formed in the connecting piece (210), an orifice is formed in the separating plate (212), the separating plate (212) is fixed in the sealing cavity formed by the connecting piece (210) and the elastic metal membrane (211) so that the sealing cavity is divided into two cavities, and the top of the elastic metal membrane (211) is fixedly connected with the movable shaft (213) through the rubber shock pad (214).
  4. 4. The broadband power amplifier device for unmanned aerial vehicle communication according to claim 3, wherein the pneumatic cabin (200) further comprises a mounting plate (220), a first magnetic coupling piece (221), a limiting rod (222), a reset damper (223), a second magnetic coupling piece (224) and an arc-shaped metal piece (225), wherein the mounting plate (220) is fixedly arranged at the bottom of the connecting piece (210), the mounting plate (220) is rotatably connected with the first magnetic coupling piece (221) through the reset damper (223), the mounting plate (220) is provided with a limiting groove, the limiting groove is slidably connected with the limiting rod (222), the limiting rod (222) is fixed at one end of the first magnetic coupling piece (221) so that the mounting plate (220) limits the movable degree of freedom of the first magnetic coupling piece (221) through the limiting groove, the second magnetic coupling piece (224) is rotatably arranged in a sealing cavity formed by the connecting piece (210) and the elastic metal piece (211), the arc-shaped metal piece (225) is positioned at the bottom side of a throttling hole formed by the separating plate (212), the second magnetic coupling piece (224) and the second magnetic coupling piece (224) are fixedly coupled with each other, so that the arc-shaped metal sheet (225) can be reset under the cooperation of the reset damper (223) and the first magnetic coupling sheet (221).
  5. 5. The broadband power amplifier device for unmanned aerial vehicle communication according to claim 1, wherein the conducting mechanism (300) further comprises two sliding blocks (311) and sliding rails (312) and a fixed block (320), wherein the bottom of one sliding block (311) is hinged with one end of a connecting rod (310), the sliding block (311) and the other sliding block (311) are fixed through the connecting block and are respectively connected to the sliding rails (312) in a sliding mode, the top of the other sliding block (311) is fixed with the fixed block (320), and an adjusting probe (321) is fixedly installed on the fixed block (320).
  6. 6. A broadband power amplifier apparatus for unmanned aerial vehicle communication according to claim 2, wherein the heat dissipation mechanism (400) further comprises a transmission gear (410), a bearing (411), a transmission shaft (412) and a drive bevel gear (413), wherein both ends of the transmission shaft (412) are respectively in butt joint with the transmission gear (410) and the drive bevel gear (413), and the transmission shaft (412) is slidably connected to an inner ring of the bearing (411) through a flat key.
  7. 7. The broadband power amplifier apparatus for unmanned aerial vehicle communication according to claim 6, wherein the heat dissipation mechanism (400) further comprises two driven bevel gears (414), two ball screws (415) and two ball nuts (416), the two driven bevel gears (414) are connected to two sides of the driving bevel gear (413) in a meshed mode, each driven bevel gear (414) is fixed to one end of each ball screw (415) respectively, each ball screw (415) is connected with a ball nut (416) in a threaded mode, and each ball nut (416) is fixedly mounted on the bottom of each heat dissipation fin (430).
  8. 8. The broadband power amplifier apparatus for unmanned aerial vehicle communication according to claim 7, wherein the transmission shaft (412) is fixedly provided with a limiting disc (420), one side of the limiting disc (420) is in contact with a memory metal sheet (421), the memory metal sheet (421) is fixed with a bimetallic strip (422), and the memory metal sheet (421) and the bimetallic strip (422) are fixedly arranged at the bottom of the heat conducting plate (111).
  9. 9. The broadband power amplifier device for unmanned aerial vehicle communication according to claim 1, wherein the top of the fixed plate (112) is fixedly connected with two springs (423), the other end of each spring (423) is respectively fixed with a radiating fin (430), and each radiating fin (430) is respectively provided with two groove bodies which are respectively connected to the limiting guide rail (431) in a sliding manner.
  10. 10. The broadband power amplifier apparatus for unmanned aerial vehicle communication according to claim 9, wherein two stoppers (432) are respectively fixed to each of the heat dissipation fins (430), the freedom of movement of the heat dissipation fins (430) is restricted, and four of the limit rails (431) are fixedly installed at the bottom of the heat conduction plate (111).

Description

Broadband power amplifier device for unmanned aerial vehicle communication Technical Field The invention relates to the field of communication devices, in particular to a broadband power amplifier device for unmanned aerial vehicle communication. Background The broadband power amplifier for unmanned aerial vehicle communication is a core component for realizing long-distance and high-reliability wireless transmission, the performance of the broadband power amplifier directly influences the communication range, anti-interference capability and signal quality of the unmanned aerial vehicle, and the broadband power amplifier is usually integrated in a transmitting link of the unmanned aerial vehicle and is responsible for amplifying weak radio frequency signals processed by a baseband to the level of tens of watts to hundreds of watts so as to overcome free space loss and realize long-distance transmission. The prior art has the defects that the power regulation is dependent on an electronic control module, the response speed is low, the electronic control module is easy to suffer from electromagnetic interference, the regulation precision is insufficient, the complex communication environment requirements in the unmanned aerial vehicle flight process are difficult to adapt, meanwhile, the heat dissipation mechanism and the power regulation are mutually independent, the heat dissipation efficiency cannot be dynamically regulated according to the power change, the heat dissipation redundancy is caused at low power, the heat dissipation is insufficient at high power, and the overheat damage of a device is easy to cause. Disclosure of Invention In order to overcome the defects of the prior art, the invention provides a broadband power amplifier device for unmanned aerial vehicle communication, which has the problems of low power regulation precision and poor heat dissipation and power adaptability. The invention solves the technical problems by adopting the technical scheme that the broadband power amplifier device for unmanned aerial vehicle communication comprises: The main body is arranged on the unmanned aerial vehicle body and comprises a fixed bin, a heat-conducting plate is fixedly arranged in the inner cavity of the fixed bin, at least two groove bodies are formed in the fixed bin, the main body further comprises a fixed plate, the fixed plate is fixed in the inner cavity of the fixed bin, a power amplification unit and a broadband impedance matching component are fixedly arranged at the top of the heat-conducting plate, the input end of the power amplification unit is used for receiving radio frequency input signals of the unmanned aerial vehicle communication system, and the output end of the power amplification unit is electrically connected with the input end of the broadband impedance matching component; The air pressure bin is provided with a movable shaft, the direction in which the movable shaft is located is set to be a first direction, the movable shaft can be driven by atmospheric pressure to axially move along the first direction, and a plurality of tooth grooves are formed in the movable shaft; The transmission mechanism is arranged on the fixed bin and comprises an adjusting probe, two sides of the adjusting probe are in sliding connection with the graded micro-band impedance line, the graded micro-band impedance line is used for carrying out broadband impedance matching on an amplified signal output by the power amplifying unit, and the air pressure bin can provide power for the transmission mechanism through the movable shaft, so that the adjusting probe slides on the graded micro-band impedance line to form broadband power adjustment for communication. Preferably, the conduction mechanism comprises a connecting rod, a heat dissipation mechanism is arranged in the main body and provided with at least two heat dissipation fins, the heat dissipation fins are arranged right below the heat conduction plate and absorb heat emitted by the heat conduction plate, and when the movable shaft moves along the first direction, the heat dissipation fins can be expanded or contracted along a groove body formed in the fixed bin; The heat dissipation mechanism comprises a transmission gear, the transmission gear is meshed with a plurality of tooth grooves formed in the movable shaft, one side of the outer surface of the movable shaft is hinged with the connecting rod, so that when the movable shaft moves along a first direction, the transmission gear rotates along with the meshing of the tooth grooves, and the end face of the connecting rod moves synchronously along the first direction. Preferably, the air pressure bin comprises a connecting piece, an elastic metal membrane, a separating plate and a rubber shock pad, wherein the elastic metal membrane is fixed at the top of the connecting piece, so that a sealing cavity is formed in the connecting piece, the separating plate is provided with an orifice, th