Rigidizable inflating-expansion radial direction rib support type offset-feed paraboloidal antenna

A parabolic antenna, inflatable deployment technology, applied to antennas, electrical components and other directions, can solve the problems of low deployment reliability, complex driving mechanism, heavy antenna weight, etc., to achieve high deployment reliability, reduced folding volume, and light weight.

Inactive Publication Date: 2012-08-15
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing satellite antennas are mostly mechanical structures. The satellite antennas with this mechanical structure have low unfolding and folding efficiency, heavy antenna weight and high cost. To solve the problem of low deployment reliability, provide a radial rib-supported offset parabolic antenna that can be stiffened and inflated

Method used

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  • Rigidizable inflating-expansion radial direction rib support type offset-feed paraboloidal antenna
  • Rigidizable inflating-expansion radial direction rib support type offset-feed paraboloidal antenna
  • Rigidizable inflating-expansion radial direction rib support type offset-feed paraboloidal antenna

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specific Embodiment approach 1

[0007] Specific implementation mode one: (see Figure 1 to Figure 5 ) This embodiment consists of three inflatable support tubes 1, an inflatable support ring 2, multiple radial ribs 3, a central drum 4, elastic reflective surface nets 5 and suspension wires 6, and multiple radial ribs 3 are radially arranged , one end of a plurality of radial ribs 3 is connected with the center drum 4, the other end of the plurality of radial ribs 3 is connected with the inflatable support ring 2 by a suspension wire 6, and the elastic reflection surface net 5 is arranged on a plurality of On the lower side of the radial rib 3, one end of the three inflatable support tubes 1 is connected to the inflatable support ring 2, and the other ends of the three inflatable support tubes 1 are gathered together, and the inflatable support tube 1 and the inflatable support ring 2 are formed by Made of rigidizable composite film material.

specific Embodiment approach 2

[0008] Specific implementation mode two: (see Figure 5 ) The radial ribs 3 in this embodiment are provided with strip-shaped through holes 7 . The purpose of the hollow design of the radial ribs 3 is to reduce the weight of the antenna. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0009] Specific implementation mode three: (see Figure 4 ) The center drum 4 described in this embodiment is composed of a central positioning column 4-1, three auxiliary positioning columns 4-2, a plurality of side columns 4-3, an upper plate 4-4 and a lower plate 4-5, and the upper plate 4-4 and the lower plate 4-5 are arranged corresponding to each other up and down, the central positioning column 4-1 is arranged on the axis of the upper plate 4-4 and the lower plate 4-5, and the two ends of the central positioning column 4-1 are connected with the upper plate respectively. 4-4 is fixedly connected with the lower plate 4-5, and the three auxiliary positioning columns 4-2 are arranged on the outside of the center positioning column 4-1, and the two ends of the three auxiliary positioning columns 4-2 are connected with the upper plate 4-4 and the upper plate 4-4 respectively. The lower plate 4-5 is fixedly connected, and a plurality of side columns 4-3 are arranged at the ed...

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Abstract

The invention provides a rigidizable inflatable deployment radial rib brace type offset parabolic reflector antenna, relating to a parabolic antennal. The aim of the invention is for solving problems that the antennal used for satellites of existing mechanical structure has low unfolding or folding efficiency, great weight and high cost, and low unfolding reliability in the folding course caused by complex driving mechanism. One side of a plurality of radial ribbed slabs of the invention are all connected with a central drum and the other side of a plurality of radial ribbed slabs are all connected with an inflatable support ring by a hanging guy. An elastic reflecting surface net is arranged on the lower side of a plurality of radial ribbed slabs and one side of three inflatable support tubes are all connected with the inflatable support ring. The whole antenna is in curling and folding state initially, and the inflatable support tubes are firstly aerated after entering after injection. The invention combines the radial ribs autologous rebound force to unfold the whole reflector structure under unfolding pulling of the inflatable support tubes and the inflatable support ring, andthe invention can maintain the structure shape of the antenna without continuous aerating after the inflatable support tubes and the inflatable support ring are completely rigidized and hardened.

Description

technical field [0001] The invention relates to a parabolic antenna. Background technique [0002] At present, most antennas for satellites are mechanical structures. Satellite antennas with such mechanical structures have low unfolding and folding efficiency, high antenna weight and high cost, and the complexity of the driving mechanism in the unfolding process results in low unfolding reliability. Satellite antennas with existing mechanical structures can no longer meet the requirements of large-scale and light-weight antenna structures. Contents of the invention [0003] The purpose of the present invention is to solve the problem that the existing satellite antennas are mostly mechanical structures. The satellite antennas with this mechanical structure have low unfolding and folding efficiency, heavy antenna weight and high cost. To solve the problem of low deployment reliability, a radial rib-supported off-feed parabolic antenna that can be rigidized and inflated to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q19/12H01Q15/16
Inventor 王长国杜星文谭惠丰谢志民苗常青王友善
Owner HARBIN INST OF TECH
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