A body-mounted parabolic antenna for inflatable satellites

Abstract

The invention provides a body-mounted parabolic antenna for a gas-filled satellite. The parabolic antenna comprises an antenna reflection surface with a parabolic structure, a support ring, a support pipe, a guy cable, a feed source and a feed source support; the antenna reflection surface with the parabolic structure is fixed in the support ring; the lower end of the support pipe is connected with the support ring; the guy cable is connected between the support pipe and the antenna reflection surface with the parabolic structure; the feed source is arranged at the lower side of the antenna reflection surface with the parabolic structure; and the feed source support is connected between the feed source and the support ring. The body-mounted antenna provided by the invention is adopted, compared with the traditional antenna, as a mounting mode of satellite external accessories, the body-mounted antenna is beneficial to the increase of the effective aperture of the antenna, the larger the aperture of the antenna is, the more gain, the further detection distance and the better target discrimination can be obtained; and the body-mounted antenna is good for improving the general dynamic property of the satellite, is convenient for the operations of gesture regulation, orbital transfer and the like for the satellite in the space operation process, and is good for improving the general structure rigidity and vibration fundamental frequency of the satellite.

Description

technical field [0001] The invention relates to a body-mounted parabolic antenna for inflatable satellites, belonging to the technical field of satellites. Background technique [0002] Existing antennas for satellites are installed on satellites in the form of external accessories. However, with the continuous improvement of satellite functions, the requirements for the size of the antenna aperture are getting larger and larger. This installation method of the antenna has led to the fact that on the one hand, the technology of satellite launch is a big limitation on the increase of the size of the aperture; on the other hand, As the antenna is an external accessory, the problem of increased structural flexibility has become more serious after the increase in size. Due to the low fundamental frequency of structural vibration, it is difficult to guarantee the shape and surface accuracy of the satellite-borne antenna, which greatly reduces the accuracy and strength of the ent...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the antenna is installed as an external accessory of the satellite, which leads to the difficulty of increasing the antenna diameter and the reduction of the fundamental frequency of the structural vibration, which greatly reduces the accuracy and strength of the entire satellite receiving and receiving signals, and then provides a method for Body Mounted Parabolic Antenna for Inflatable Satellites

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