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Metamaterial satellite antenna and satellite receiving system

A technology of satellite antennas and metamaterials, applied in the field of communication, can solve the problems of high cost and difficult processing of satellite antennas, and achieve the effects of easy manufacturing and processing, lower sidelobe levels, and low cost

Active Publication Date: 2012-09-19
KUANG CHI CUTTING EDGE TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a metamaterial satellite antenna with simple processing and low manufacturing cost for existing satellite antennas which are difficult to process and high in cost

Method used

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  • Metamaterial satellite antenna and satellite receiving system
  • Metamaterial satellite antenna and satellite receiving system
  • Metamaterial satellite antenna and satellite receiving system

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Embodiment Construction

[0042] like Figure 1 to Figure 3 As shown, the metamaterial satellite antenna according to the present invention includes a metamaterial flat plate 100 disposed behind the feed 1, the metamaterial flat plate 100 includes a core layer 10 and a reflector 200 disposed on the rear surface of the core layer, the core layer 10 includes a substrate 13 and a plurality of artificial microstructures 12 attached to the front surface of the substrate 13, the reflector 200 is attached to the rear surface of the substrate 13, and the central axis Z1 of the feed and the front surface of the metamaterial flat plate 100 have a difference. The included angle θ of zero. In addition, the feed source is a traditional corrugated horn. In addition, in the present invention, the reflector is a metal reflector with a smooth surface, such as a polished copper plate, an aluminum plate, an iron plate, etc., a PEC (perfect electrical conductor) reflecting surface, and of course a metal coating. In the ...

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Abstract

The invention discloses a metamaterial satellite antenna which comprises a metamaterial flat plate arranged on the rear side of a feed source. The metamaterial flat plate comprises a core layer and a reflecting plate arranged on the rear surface of the core layer. The core layer comprises a substrate and a plurality of artificial microstructures attached to the front surface of the substrate. The reflecting plate is attached to the rear surface of the substrate so that after electromagnetic wave transmitted from the feed source passes through the metamaterial flat plate, an included angle formed by emergent plane electromagnetic wave and the normal direction of the core layer is not zero, namely the directions of the emergent electromagnetic wave and the normal of the core layer are different, so that minor lobe level of the satellite antenna can be effectively reduced compared with the electromagnetic emitting in the normal direction of the core layer. The sheet-shaped metamaterial flat plate replaces a traditional parabolic antenna, therefore manufacture and machining are easy, cost is low, in addition, the overall thickness of the metamaterial flat plate is in a millimeter level, and the metamaterial flat plate is thin and light. The invention further provides a satellite receiving system.

Description

technical field [0001] The invention relates to the field of communications, and more particularly, to a metamaterial satellite antenna and a satellite receiving system. Background technique [0002] Existing satellite antennas, such as satellite TV receiving antennas, usually use traditional reflector antennas, which are usually parabolic antennas. The parabolic antenna is responsible for reflecting the received signal into the feed at the focal point. [0003] When receiving the electromagnetic wave signal from the satellite, the parallel electromagnetic wave (because the distance between the satellite and the earth is quite far, the electromagnetic wave emitted by it can be considered as a plane wave when it reaches the ground) after being reflected by the parabolic antenna, it converges on the feed source. Usually, the feed corresponding to the parabolic antenna is a horn antenna. [0004] However, the curved surface of the reflection surface of the parabolic antenna is...

Claims

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Application Information

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IPC IPC(8): H01Q1/36H01Q15/23H01Q19/06H01Q19/10
Inventor 刘若鹏季春霖殷俊李星昆杨青
Owner KUANG CHI CUTTING EDGE TECH LTD
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