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Satellite inflatable antenna

An inflatable antenna and satellite technology, applied in the field of antenna and aerospace technology, can solve the problems of uncontrollable filling volume and filling rate, poor stability and controllability of the deployment process, and low reliability of deployment, so as to reduce the shock overload of deployment and grade the effective area Orderly increase, improve the effect of safety and reliability

Active Publication Date: 2020-08-18
SPACETY CO LTD (CHANGSHA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In the inflatable flexible antenna and its deployment method provided by this patent, because the deployment process depends on the deployment of the mechanical structure and its driving mechanism is complicated, the deployment reliability is low. At the same time, because the filling of gas is affected by the angle of sunlight, the filling amount and filling rate are uncontrollable, so there are many uncontrollable factors in the deployment process. The impact will lead to obvious shock and vibration in the overall structure, and the anti-interference ability is poor. Although the storage ratio is improved, the stability and controllability of the unfolding process is poor.

Method used

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  • Satellite inflatable antenna
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Examples

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Embodiment Construction

[0042] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0043] The first-stage deployment assembly 11 at least includes a first inflatable support ring 1 and a second inflatable support ring 2 whose shapes are defined by arcs and have hollow inner chambers. The first inflatable support ring 1 and the second inflatable support ring 2 can be nested and connected to each other, so that the first antenna folded surface 5 can be compressed and folded in height and radial direction, so as to reduce the occupied volume of the first antenna folded surface 5 .

[0044] Preferably, the first inflatable support ring 1 and the second inflatable support ring 2 are arranged adjacent to and spaced apart from each other along the circumferential direction in such a manner that the centers of the two are located at the same point. Preferably, there are two first inflatable support rings 1 and two second inflatable support rings 2, both si...

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Abstract

The invention relates to a satellite inflatable antenna. The inflatable antenna at least comprises a flexible antenna folding surface and an unfolding assembly. The unfolding assembly at least comprises a first-stage unfolding assembly and a second-stage unfolding assembly; the first-stage unfolding assembly can expand outwards under the driving action of inflation pressure applied to the first-stage unfolding assembly as driving force so as to drive at least part of the flexible antenna folding surface to be unfolded. When the first-stage unfolding assembly is expanded to a first-stage complete unfolding position, the second-stage unfolding assembly is expanded in a graded manner in a manner of releasing the shape memory effect of the shape memory material plate on the flexible antenna folding surface due to the driving force applied to the second-stage unfolding assembly, so that the flexible antenna folding surface can be unfolded in an incomplete or complete space in a graded and controllable manner from bottom to top in a manner of increasing the effective unfolding area and reducing the unfolding impact overload.

Description

[0001] The present invention is a divisional application with the application number 201910065416.4, the application date is January 23, 2019, the application type is invention, and the application name is a space-deployable inflatable antenna. technical field [0002] The invention relates to the fields of aerospace technology and antenna technology, in particular to a space expandable inflatable antenna. Background technique [0003] The issue of antenna deployability is especially important as the size of satellites becomes smaller. While the sensors and operating electronics of miniaturized satellites can be scaled to extremely small volumes, the wavelengths of the signals used by such miniaturized satellites for communication do not scale accordingly. Given that the wavelength of a signal determines the size of the antenna used to transmit that signal, antennas for miniaturized satellites are still of similar size to larger satellites. Geostationary orbit satellites an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/08H01Q1/28
CPCH01Q1/08H01Q1/081H01Q1/288
Inventor 杜志贵杨峰任维佳向晓霞
Owner SPACETY CO LTD (CHANGSHA)
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