Ku/Ka dual-frequency shared portable communication antenna

Abstract

The invention discloses a Ku / Ka dual-frequency shared portable communication antenna, and belongs to the technical field of antennas. The antenna seat frame is a U-shaped frame and comprises a bottom plate and supporting arms located on the two sides of the upper surface of the bottom plate. An azimuth gear is fixed to the top of the supporting center. An azimuth motor is located on one side of the azimuth gear, and an azimuth output gear at the end of an output shaft of the azimuth motor is meshed with the azimuth gear. A shell of the azimuth motor is fixedly connected with a bottom plate of the antenna pedestal frame; the outer side of one support arm of the antenna pedestal is provided with a pitching belt wheel in bearing connection with the support arm, and the shaft part of the pitching belt wheel located on the inner side of the support arm is fixedly connected with the box body; the other support arm of the antenna seat frame is connected with a bearing on the corresponding wall surface of the box body; a pitching motor is further fixedly arranged at the bottom of the antenna seat frame, and an output shaft of the pitching motor drives a pitching belt wheel to rotate through a belt. According to the invention, rapid feed switching is realized, winding of wire groups is avoided, the structure is simple and light, and the reliability is high.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a Ku / Ka dual-frequency shared portable communication antenna. Background technique [0002] With the rapid development of satellite communication technology, the demand for Ku / Ka dual-band antennas is getting stronger and stronger. Traditional dual-band automatic portable communication antennas have the following limitations: [0003] 1. Two independent feeds are used. To replace the feeds, you need to manually disassemble and assemble the feeds and power amplifiers. The operation is complicated and time-consuming, which cannot meet the requirements of emergency use. At the same time, the structure design is also more complicated and bulky. [0004] 2. The power amplifier and the waveguide are mostly installed on the outside of the antenna mount, occupying a large space, and are not safe, and the structure design is relatively heavy. [0005] 3. The drive chain of the antenna...

AI Technical Summary

Problems solved by technology

[0003] 1. More than two independent feed sources are used. To replace the feed source, the feed source and power amplifier need to be manually disassembled. The operation is complicated and time-consuming, which cannot meet the use requirements in emergency situations.

At the same time, the structural design is also more cumbersome and bulky

[0004] 2. The power amplifier and waveguide are mostly installed outside the antenna mount, which takes up a large space, is not safe, and has a cumbersome structural design

[0005] 3. The drive chain of the antenna pedestal often has the situation that the cable is wound around the azimuth mechanism.

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