A whole-satellite layout and deployment design method of a space-borne telephoto large-aperture antenna

A design method and large-diameter technology, which can be used in antennas, antenna components, design optimization/simulation, etc., and can solve problems such as inapplicability of design methods

Active Publication Date: 2021-06-11
XIAN INSTITUE OF SPACE RADIO TECH
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Problems solved by technology

[0003] A high-orbit satellite uses a 20-meter-level deployable antenna, with a focal length of 10 meters; the size of the satellite is 2.1 meters * 2.1 meters * 4.2 meters, and the focal length is 2.5 times the height of the whole star, far exceeding the indicators of existing technical solutions , none of the prior art design methods are applicable

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  • A whole-satellite layout and deployment design method of a space-borne telephoto large-aperture antenna
  • A whole-satellite layout and deployment design method of a space-borne telephoto large-aperture antenna
  • A whole-satellite layout and deployment design method of a space-borne telephoto large-aperture antenna

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[0030] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0031] A whole-satellite layout and deployment design method of a space-borne telephoto large-aperture antenna, specifically as follows:

[0032] First determine the main input conditions:

[0033] ①Satellite 3D model and satellite coordinate system;

[0034] ② Antenna electrical design According to the orbital position and beam pointing requirements, the antenna design coordinate system relative to the satellite coordinate system direction matrix is ​​proposed;

[0035] ③Electrical design puts forward parameters such as aperture, focal length, offset, etc. for the relationship between the antenna reflective surface and the position of the feed source;

[0036] ④ The layout and deployment design of the whole satellite need to conside...

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Abstract

A satellite-borne telephoto large-aperture antenna whole-star layout and deployment design method belongs to the field of space-borne large-scale deployable antennas. This method mainly includes the following steps: 1) Preinstall the reflective surface in the expanded state on the entire star according to the input conditions; 2) Translate the reflective surface, and determine the layout method according to the size relationship; 4) Optimize the length of the deployment arm and the transfer arm, and determine the position of the reflector and the feed array; 5) Check the field of view of the antenna; 6) Determine the reflector of the antenna and the deployment mode of the deployment arm. The calculation method of the invention is simple and effective, and the way of unfolding the reflective surface is given in detail.

Description

technical field [0001] The invention relates to a satellite-borne long-focus large-aperture antenna whole-satellite layout and deployment design method, which belongs to the field of space-borne large-scale deployable antennas. Background technique [0002] Spaceborne large-scale deployable antennas generally mean that the reflective surface of the antenna is unfolded. The antenna is mainly composed of a feed array and a reflective surface. The focal-diameter ratio is generally 0.4 to 1.0. When the diameter of the reflecting surface is greater than 12 meters, the focal length of the antenna is at least 5 meters, which exceeds the height of the satellite itself. It is necessary to use the deployment arm to expand the reflecting surface away from the satellite to ensure the relative relationship between the antenna feed array and the reflecting surface. The layout and deployment of reflectors, deployment arms, and feed arrays on the entire star are very important. [0003] A ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q19/10H01Q1/28G06F30/17G06F30/20
CPCH01Q1/288H01Q19/10
Inventor 冯涛肖勇马小飞王浩威李涛张桥杨军刚王海琛王勇段浩
Owner XIAN INSTITUE OF SPACE RADIO TECH
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