Automatic-resilient, multi-dimensional reconfigurable and high-parameter satellite-borne expandable antenna

Abstract

The invention belongs to the technical field of an antenna, and discloses an automatic-resilient, multi-dimensional reconfigurable and high-parameter satellite-borne expandable antenna. The automatic-resilient, multi-dimensional reconfigurable and high-parameter satellite-borne expandable antenna is provided with a central wheel cylinder, an upper variable parabolic radiation rib, a lower variable parabolic radiation rib, a memory adjustment rope, an upper shape memory cable net, a lower shape memory cable net, a force balance system and a metal reflection net, wherein the upper variable parabolic radiation rib, the lower variable parabolic radiation rib and the memory adjustment rope form a parabolic cable net structure on a parabolic substrate, the force balance system, the upper shape memory cable net and a lower shape memory cable net are used for building the antenna in a thermodynamic property controllable mode along a radial direction, and the metal reflection net covers surfaces of the shape memory cable nets. By the antenna, the flexural rigidity of the radiation ribs are improved, the internal force of the whole structure is substantially reduced, and the rigidity demand and the weight of the whole structure can be effectively reduced; and with the adoption of the shape memory cable net structure, automatic monitoring and self-adaptive adjustment of a shape memory pull rope can be achieved, the multi-dimensional reconfigurable function of the integrated antenna is achieved by synchronous control of a multi-degree of freedom variable radiation rib, and the surface accuracy and the on-orbit stability of a parabolic cable net cable can be further improved.

Description

technical field [0001] The invention belongs to the technical field of antennas, in particular to a self-rebounding multi-dimensional reconfigurable high-parameter spaceborne deployable antenna. Background technique [0002] The wound rib antenna has many advantages such as high storage rate, light structure weight, high deployment reliability, and simple mechanism design. However, it is difficult to balance the rigidity and flexibility of the radial ribs, resulting in poor surface accuracy and in-orbit stability. The peripheral truss antenna has the advantages of high structural rigidity and good stability, but it is difficult to adjust the mesh surface, has many joints, and poor deployment reliability. [0003] To sum up, the problems existing in the prior art are: the flexibility required for winding the thin-walled radiation ribs of the existing wound rib antenna is inconsistent with the rigidity required after unfolding, and the shape accuracy of the reflective surface...

AI Technical Summary

Problems solved by technology

[0003] To sum up, the problems existing in the prior art are: the flexibility required for winding the thin-walled radiation ribs of the existing wound rib antenna is inconsistent with the rigidity required after unfolding, and the shape accuracy of the reflective surface is poor; The surrounding truss antenna has many joints and poor deployment reliability

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