An Inflatable Deployable Z-shaped Folded Array Antenna Supported by Rigid-Flexible Combination

Abstract

An inflatable unfolded Z-shaped folded array antenna supported by a rigid-flexible combination, which belongs to the technical field of space-borne antennas, solves the problems existing in the Z-shaped folded array antenna. It includes a Z-shaped folded antenna panel composed of multiple substrates. There is a truss on the back of the panel, and the truss includes a main inflatable tube, multiple side inflatable side tubes and multiple side carbon fiber side tubes, the side inflatable side tubes and side carbon fiber side tubes are arranged symmetrically on both sides of the main inflatable tube, and all The side gas-filled side tubes are set on the same side of the main gas-filled tube; two side gas-filled side tubes and two side carbon fiber side tubes are set corresponding to each substrate, and an gas-filled side tube is arranged between the two side gas-filled side tubes corresponding to each substrate Slanted tube, a carbon fiber slanted tube is set between the two side carbon fiber side tubes corresponding to each base plate; on the base plate, there are all side inflatable side tubes, side carbon fiber side tubes, inflatable slanted tubes, carbon fiber slanted tubes, ball Recesses for hinges and main gas tubes; this invention is used on spaceborne platforms.

Description

technical field [0001] The invention belongs to the technical field of space-borne antennas, and in particular relates to an inflatable unfolding Z-shaped folded array antenna supported by rigid-flexible combination. Background technique [0002] The spaceborne platform has strict requirements on the antenna's launch volume, weight, energy consumption after deployment, and reliability after deployment. Z-shaped folding is the usual folding method for array antennas. Compared with other folding methods, the antenna can be folded into a smaller size. Within the volume, the storage ratio of the array antenna is improved, and it is more suitable for the spaceborne platform. The unfolding and supporting forms of the Z-shaped folded antenna mainly include mechanical unfolding support and inflatable unfolding support. The mechanical unfolding support method has excessive structural weight and low precision. The inflatable unfolding support method can reduce the The weight of the o...

AI Technical Summary

Problems solved by technology

The unfolding and supporting forms of the Z-shaped folded antenna mainly include mechanical unfolding support and inflatable unfolding support. The mechanical unfolding support method is too heavy in structure and the precision is low. Using the inflatable unfolding support method can reduce the The weight of the overall structure of the small antenna, such as the patent No. 201611210347.4, discloses an inflatable drive and orderly unfolded modular planar antenna, which is supported by an inflatable structure, and its rigidity can be improved by thermally curing the inflatable tube. In this way, the overall stiffness of the antenna structure is improved, and the natural frequency of the antenna is increased; however, the truss is all composed of inflatable tubes, which consume more energy and gas when deployed, which does not meet the requirements of the antenna for low energy consumption of the supporting structure, so the patent number is 201611210347 .4 Improves an inflatable driven and orderly unfolded modular planar antenna, and develops this scheme

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