Folding and unfolding method of large-area and small-length-width ratio satellite borne planar radar antenna

A radar antenna and aspect ratio technology, which is applied in the field of configuration and deployment of satellite antennas, can solve the problems of antenna configuration layout, radar antenna configuration layout, etc., and achieve the solution of small aspect ratio and large-area planar radar antenna configuration Effects of Layout Issues

Inactive Publication Date: 2017-05-31
SHANGHAI SATELLITE ENG INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to propose a kind of folding and unfolding method, solves the satellite with small aspect ratio large-area planar radar

Method used

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  • Folding and unfolding method of large-area and small-length-width ratio satellite borne planar radar antenna
  • Folding and unfolding method of large-area and small-length-width ratio satellite borne planar radar antenna
  • Folding and unfolding method of large-area and small-length-width ratio satellite borne planar radar antenna

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Embodiment Construction

[0023] The preferred embodiment of the present invention will be described below in conjunction with the accompanying drawings, which will be described in two parts: block and development.

[0024] The present invention takes a certain satellite as an example to describe the specific implementation mode. The satellite plans to install a planar radar antenna of 1 pair of 4m * 9m.

[0025] Chunking steps:

[0026] Step 1: Divide the antenna into two sub-arrays A and B in the width direction, the A sub-array is 2m×9m, and the B sub-array is 2m×9m, see figure 1 .

[0027] Step 2: In the length direction, divide sub-array A into three sub-boards, A1, A2, A3 sub-boards are 3m long respectively.

[0028] Step 3: In the length direction, divide the sub-array B into three sub-boards, the sub-boards B1, B2, and B3 are 3m long respectively, see figure 2 .

[0029] Step 4: A sub-arrays A1 and A3 are folded inwards respectively to form a folded antenna with a size of 2m×3m, which is i...

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Abstract

The invention relates to a folding and unfolding method of a large-area and small-length-width ratio satellite borne planar radar antenna. The unfolding process of the folding and unfolding method includes a blocking stage and an unfolding stage. The blocking stage includes the following steps that: a plane phased array antenna is divided into an A sub-array and a B sub-array in a width direction, wherein the two sub-arrays are respectively installed on two side surfaces of the body of a satellite; and the A sub-array is divided into two or three sub-plates in a length direction which are denote as A1, A2 and A3 respectively, and the B sub-array is divided into two or three sub-plates in a length direction which are denote as B1, B2 and B3 respectively. The unfolding stage includes following steps that: the sub-plates A1, A2 and A3 are unfolded through an unfolding mechanism so as to form the complete A sub-array, and the sub-plates B1, B2 and B3 are unfolded through an unfolding mechanism so as to form the complete B sub-array; and the B sub-array is rotated, so that the B sub-array and the A sub-array can be spliced together to form the complete plane phased array antenna. With the folding and unfolding method of the invention adopted, the problem that the large-area and small-length-width ratio satellite borne planar radar antenna cannot be mounted on the satellite can be solved.

Description

technical field [0001] The invention relates to the configuration and unfolding method of a satellite antenna, in particular to a method for gathering and unfolding a spaceborne planar radar antenna with a large area and a small aspect ratio. Background technique [0002] With the development of spaceborne radar technology, there are more and more applications of large planar antennas. However, the space of the fairing for installing the satellite on the launch vehicle is limited, and the large-area planar radar antenna cannot be directly installed on the satellite and put into the fairing. At present, for a general planar radar antenna with a length of less than 15m and a width of less than 2m, the antenna is divided into blocks in the length direction and folded, so that the size in the length direction is shortened and installed on the star to meet the installation needs of the fairing. This method requires the antenna width to be as small as possible. For planar radar ...

Claims

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Application Information

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IPC IPC(8): H01Q1/08H01Q21/00
CPCH01Q1/08H01Q21/00
Inventor 任伟顾丽丽吴以平席沛丽彭仁军
Owner SHANGHAI SATELLITE ENG INST
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