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Satellite-based helical antenna

A helical antenna and spaceborne technology, applied in the field of the helical antenna body mechanism, can solve the problems of aging and material brittleness, and achieve the effects of stable electrical performance indicators, good rigidity and good shape retention.

Active Publication Date: 2015-08-12
四川九洲空管科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] When the antenna is working, it is directly exposed in space, and it is radiated by space. It is in a state of high and low temperature alternating, and the temperature range can reach -90°~110°, which can easily lead to material brittleness and aging.

Method used

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Embodiment

[0040] The invention provides a spaceborne helical antenna, such as Figure 1 to Figure 9 As shown, the antenna includes a reflector 1 , an insulating plate 2 , a base 3 , a helical antenna body 4 and a protective cover 5 . The insulating plate 2 is placed on the upper surface of the reflector 1, and the base 3 is placed in the middle of the upper surface of the insulating plate 2, and the base 3, the insulating plate 2, and the reflector 1 are fixed as a whole by the screws at the bottom of the reflector 1. A fixed support 6 is provided on the upper surface of the insulating plate 2 close to the base 3 , the lower end of the helical antenna body 4 is fixed on the fixed support 6 , and the upper end is fixed in the protective cover 5 . The electrical connector 10 is mounted on the reflector 1 at the bottom of the antenna. When the helical antenna body 4 is compressed to the maximum compression state, the protective cover 5 completely covers the base 3 and the helical antenna ...

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Abstract

The invention provides a satellite-based helical antenna. The antenna comprises a baffle board, an insulating board, a base, a helical antenna body and a protective cover. The baffle board, the base and the insulating board are fixed through screws. The insulating board is pressed between the baffle board and the base. The baffle board, the base and the insulating board are fixed as a whole. The lower end of a helical antenna body is fixed on the insulating board and the upper end thereof is fixed in the protective cover. When the helical antenna body is compressed to the greatest extent, the protective cover fully covers the base and the helical antenna body and is connected and fixed with the base through the screw. The helical antenna can be folded into a small size and has high compression ratio, the compressed antenna is convenient to store and install, has strong strength, and can bear large impact load; and the compressed antenna has no irreversible deformation, and can rapidly recover to the virgin state after being released.

Description

technical field [0001] The invention relates to a foldable and automatically unfoldable helical antenna body mechanism against harsh space environments, which is suitable for the helical antenna body loaded on a satellite platform, especially for a spaceborne ADS-B antenna. Background technique [0002] Restricted by factors such as the mounting platform and launch load, spaceborne antennas are often required to be folded into a limited small space when launching. Folding must not damage the structure of the antenna itself, and it is convenient to fix. The folded mechanism can meet the severe launch shock load. [0003] After the satellite enters orbit, the antenna will automatically deploy according to ground instructions. The deploying mechanism is required to be simple and reliable, and the deploying state can be fixed. During the deploying process, no uncontrollable impact loads should be generated on the satellite platform, and no solid waste should be thrown into space....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/10H01Q1/36H01Q1/42
Inventor 罗炳华
Owner 四川九洲空管科技有限责任公司
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