Truss type extensible antenna reflector

Abstract

The embodiment of the present invention provides a truss type extensible antenna reflector, and belongs to the technical field of antennas. A cable-net structure of the reflector includes an upper layer of cable net, a lower layer of cable net, a tension array and multiple flower disc connecting columns; the flower disc connecting columns extend along a vertical direction; the upper layer of cablenet and the lower layer of cable net are fixedly stacked via the flower disc connecting columns on a net surface formed by folding rods; the upper layer of cable net is spliced by multiple first triangular lattice units; the lower layer of cable net is spliced by multiple second triangular lattice units; an exterior outline of each triangular lattice unit is matched with a triangle; at least onefirst node is provided at an edge of each first triangular lattice unit; a second node matched with the first node in one-to-one correspondence is provided at an edge of each second triangular latticeunit; and corresponding first nodes and second nodes are fixed by corresponding tension array ropes. The truss type extensible antenna reflector can increase the number of nodes without adding a truss unit, can reduce the weight of the reflector obviously, and improves the storage ratio.

Description

Technical field [0001] The present invention relates to the field of antenna technology, and in particular provides a framework-type deployable antenna reflector with light weight and high storage ratio. Background technique [0002] With the rapid development of aerospace science and technology and the increasing economic and military needs, major aerospace science and technology projects such as satellite communications, data relay, ground remote sensing, navigation, and electronic reconnaissance that are being implemented in aerospace engineering have increasingly increased requirements for spacecraft. At present, my country’s navigation and ground remote sensing are in the stage of load upgrade, subject to multiple satellites and small carrier envelope requirements. For antennas with a diameter of 3 to 8 meters, a collapsed envelope size of less than 1m×1m×1m is also proposed. The weight is 30~50Kg. At present, the various types of large-scale space expandable antennas availa...

AI Technical Summary

Problems solved by technology

For this type of frame antenna structure, as the antenna diameter increases, the number of reflector truss rods will increase significantly in order to ensure the accuracy of the reflector profile, resulting in a significant increase in the weight of the antenna and an increase in the folded size, which cannot meet the requirements Requirements of the current task for the lightweight and tiny space layout of the antenna

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