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Expandable plane supporting and positioning device for SAR antenna

A technology that supports positioning and plane positioning. It is applied to antenna supports/installation devices, antennas suitable for movable objects, antennas and other directions. It can solve the problems of rising satellite launch costs and large mass ratio, and achieve good scalability. performance, low launch cost, simple and lightweight structure

Pending Publication Date: 2021-03-16
SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mass of the SAR antenna deployment mechanism in the overall antenna structure is very large, which will lead to a sharp increase in the launch cost of the satellite

Method used

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  • Expandable plane supporting and positioning device for SAR antenna
  • Expandable plane supporting and positioning device for SAR antenna
  • Expandable plane supporting and positioning device for SAR antenna

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Embodiment Construction

[0039] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0040] Such as figure 1 As shown, the present invention provides an expandable planar support and positioning device for SAR antennas, including a SAR antenna frame structure 1, a planar positioning device 2, an antenna panel connection assembly 3, a star-antenna connection assembly 4, and a star side panel 5. Star plate I6 and star plate II7, wherein the star side plate 5 is set on the SAR antenna frame structure 1, one end of the star plate I6 is hinged to the star side plate 5 through the star-antenna connection assembly 4, and the other end of the star plate I6 is through The connecting component 3 between the antenna boards is hinged with the star board II7; the plane positioning device 2 is arranged at the connection end between the star boa...

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PUM

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Abstract

The invention belongs to the technical field of SAR antenna supporting and positioning, and particularly relates to an expandable plane supporting and positioning device for an SAR antenna. The devicecomprises an SAR antenna frame structure, a plane positioning device, an inter-antenna-plate connecting assembly, a star antenna connecting assembly, a star side panel, a star plate I and a star plate II, wherein the star side panel is arranged on the SAR antenna frame structure; the other end of the star body plate I is hinged with the star body plate II through an antenna inter-plate connectingassembly; the plane positioning device is arranged at the connecting end between the star plate I and the star plate II and used for self-locking and positioning when the star plate I and the star plate II are located in the same plane. Main functions are achieved through the lock pin structure, the mass of the SAR antenna unfolding mechanism is greatly reduced, and the satellite launching cost is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of SAR antenna support and positioning, in particular to an expandable planar support and positioning device for SAR antennas. [0002] technical background [0003] The synthetic aperture radar (SAR) antenna is a microstrip planar array, which is a typical large-scale deployable antenna in space. Since the SAR antenna has all-weather, all-time, high-resolution and large-area imaging capabilities, and the planar array antenna has the advantages that the radiation aperture is not blocked, and the aperture distribution can be controlled according to requirements, therefore, the reflector antenna with the same aperture In comparison, it has high efficiency and low side lobe level, and is an effective means for communication, detection and related research in high and far positions. [0004] When the diameter of the spaceborne antenna reflector exceeds the size that the fairing of the launch vehicle or the load ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/12H01Q1/10H01Q1/20H01Q1/22H01Q1/28
CPCH01Q1/1235H01Q1/10H01Q1/20H01Q1/22H01Q1/288G01S13/90G01S7/02
Inventor 刘金国赵鹏远季晨阳陈科利
Owner SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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