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Multiple-wave feed automatic switch and drive device for large-scale flexible radio telescope antenna

A radio telescope, automatic switching technology, applied in the direction of antenna, non-electric variable control, electrical components, etc., can solve problems such as difficult to achieve positioning accuracy, meet the requirements of positioning accuracy, simple and reliable maintenance, accurate positioning and fixed attitude Effect

Inactive Publication Date: 2007-02-07
XIDIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] Since the maximum operating frequency of this large flexible antenna is as high as 8.8GHz, very high requirements are placed on the positioning accuracy of the feed source, and it is difficult to achieve positioning accuracy only by adjusting the length of the cable

Method used

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  • Multiple-wave feed automatic switch and drive device for large-scale flexible radio telescope antenna
  • Multiple-wave feed automatic switch and drive device for large-scale flexible radio telescope antenna
  • Multiple-wave feed automatic switch and drive device for large-scale flexible radio telescope antenna

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Embodiment Construction

[0042] The present invention will be described in further detail below with reference to the accompanying drawings.

[0043] The present invention is used for Figure 4 In the large flexible radio telescope antenna structure shown, the antenna is arranged on a circle with a diameter of 500m and a cylindrical range with a height of 250m. The invention mainly solves the problem of automatic switching of the multi-band beam feed source and the driving problem of the steel cable in the flexible antenna structure, so as to realize the requirement of a wider frequency for using a large flexible antenna for astronomical observation. for this purpose Figure 5 , Figure 6 , Figure 7 The shown multi-band beam feed automatic switching device and method, and adopts Figure 8 drive shown. The multi-band beam feed automatic switching device 10 of the present invention is installed in Figure 4 The lower platform of the six-degree-of-freedom parallel mechanism 8 shown is on the fine-...

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Abstract

The invention relates to a multi-beam feedback automatic switch device and driving device, in large-scale flexible antenna, wherein said switch 10 is formed by rotation platform 14, multi-beam feedback source 13, and hollow support bearing 21; the multi-beam feedback source 13 is uniformly distributed on the platform 14, to be supported by hollow support bearing 21, to rotate relative to the fine adjusting platform 9; then switching the feedback source at any frequency, to adjust it at the center of fine adjusting platform, to receive the radio signal at one signal focus and large frequency range; said driving device is formed by a servo motor 23, a flexible coupler 25, a speed reducer 26, a secondary coupler 27, a bearing base 28, and a coiler 29, while they are connected to the ground via bottom frame 30. The invention has wider frequency range, to be used in large flexible antenna and large radio telescope.

Description

technical field [0001] The invention belongs to the mechanical field and relates to a flexible antenna structure, in particular to an antenna multi-beam feed automatic switching device and a driving device, which can be used in a large flexible radio telescope system. Background technique [0002] It is well known in the industry that the antenna feed is the most important part of a radio telescope system. When the radio telescope is working, the radio signal is gathered at the focal point of the parabolic antenna through the reflection of the parabolic antenna, and the radio signal is received by the antenna feed at the focal point, such as figure 1 . Should figure 1 The schematic diagram of the structure of a conventional rigid radio telescope is shown, which is composed of a parabolic reflector 04, an antenna feed 02, and a rigid structural support 03. The antenna feed 02 is installed on the focus of the parabolic reflector 04 to receive the radio signals reflected and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q19/12H01Q19/17G05D3/00H04B1/18
Inventor 段宝岩仇原鹰赵泽
Owner XIDIAN UNIV
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