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Waveguide split array antenna used for satellite communication

A satellite communication and array antenna technology, which is applied in slot antennas, antennas, antenna arrays, etc., and can solve problems such as difficulties in the application of waveguide slot antenna technology

Inactive Publication Date: 2009-04-01
郝志强
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This feature also causes difficulties in the application of waveguide slot antenna technology in the field of satellite communications

Method used

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  • Waveguide split array antenna used for satellite communication
  • Waveguide split array antenna used for satellite communication
  • Waveguide split array antenna used for satellite communication

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Embodiment Construction

[0044] Under the guidance of the above-mentioned technical solution of the antenna structure, there may be many different implementation solutions. One of them is as follows: the antenna is made of waveguide material. The antenna consists of two layers: the first layer, the upper layer, is the radiation waveguide layer, which is responsible for receiving microwave energy emitted from the satellite or radiating microwave energy to the satellite. The second layer is the feeding waveguide layer, and a coupling crack is engraved between the first layer and the second layer. And feed the output / input through the waveguide interface on the second layer. The above two layers are directly connected together by welding. The first layer (radiation waveguide layer) consists of 16 smaller radiating crack unit modules and 4 larger slit radiating units. Each radiating slot unit is formed by juxtaposing six waveguides, and each waveguide is engraved with 6 slots, so each module has a tota...

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Abstract

A waveguide slot array antenna used for satellite communication consists of three waveguide layers, the first layer is a radiating layer, the second layer is a coupling layer or a feeding layer, and the third layer is a feeding layer, the three layers are directly welded / connected sequentially, each layer consists of two waveguides with different specifications, and the two different waveguides respectively generate two radiation slots with different sizes on the antenna radiating layer to produce two different receiving frequency and emission frequency; in the two different radiation slots with different sizes, one slot is in the direction of the waveguide length, and the other slot is in the direction of the waveguide width, the two slots are mutually orthogonal; the radiating waveguides of the two mutually orthogonal slots with different sizes are alternately and closely arranged side by side and generate orthogonal polarization properties which are perpendicular to each other to meet the special requirements of satellite communication while sharing an antenna aperture face. The invention provides a satellite communication antenna which can be satisfactorily applied to transmitting and receiving satellite signals and is characterized by small occupation space, wider use frequency of antenna and lower feeding loss, and the structure of the antenna is reduced from three layers to two layers to cause the antenna to be more easily processed. The antenna is particularly suitable for the occasions such as narrow airborne, vehicle-borne spaces, etc.

Description

technical field [0001] The invention relates to an antenna for satellite communication, in particular to a waveguide slot array antenna for satellite communication or satellite TV reception. Background technique [0002] Satellite communication technology has been widely used in many fields in recent years, especially in the fastest growing fields of satellite TV and satellite broadcasting. At the same time, with the increasing popularization of vehicles such as automobiles and airplanes, people hope to maintain mobile communications or watch satellite TV programs or listen to satellite radio broadcasts on moving automobiles and airplanes. To realize mobile satellite communication and mobile TV reception or mobile satellite broadcast reception, miniaturized and efficient satellite communication antenna is a necessary key equipment. [0003] Traditional satellite communication antennas often use reflector antennas, such as what people often call "dish antennas" or "pot anten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/00H01Q13/00H01Q13/10H01Q1/38
Inventor 郝志强
Owner 郝志强
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