Cassegrain type metamaterial antenna

A metamaterial and antenna technology, applied in the field of communication, can solve problems such as high cost and difficult processing of Cassegrain antennas

Active Publication Date: 2012-11-28
KUANG CHI INST OF ADVANCED TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a Cassegrain-type metamaterial antenna with s

Method used

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  • Cassegrain type metamaterial antenna
  • Cassegrain type metamaterial antenna
  • Cassegrain type metamaterial antenna

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Embodiment Construction

[0051] Such as Figures 1 to 4As shown, the Cassegrain type metamaterial antenna according to the present invention includes a metamaterial main reflector ZF with a central through hole TK, a feed source 1 arranged in the central through hole TK and a metamaterial secondary reflector arranged in front of the feed source 1 The electromagnetic waves radiated by the reflector FF and the feed source 1 are emitted in the form of plane waves after being reflected by the metamaterial sub-reflector FF and the metamaterial main reflector ZF in turn. The metamaterial main reflector ZF includes a first core layer 101 and a set The first reflective layer 201 on the rear surface of the first core layer 101, the first core layer 101 includes at least one first core layer sheet 10, and the first core layer sheet 10 includes a first base material JC1 and a set A plurality of first artificial microstructures JG1 on the first substrate JC1, the metamaterial sub-reflector FF includes a second co...

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Abstract

The invention discloses a Cassegrain type metamaterial antenna, comprising a metamaterial main reflector with a central through hole, a feed source arranged in the central through hole and a metamaterial secondary reflector arranged in front of the feed source, wherein electromagnetic waves radiated by the feed source are emitted out in a plane wave manner after being sequentially reflected by the metamaterial secondary reflector and the metamaterial main reflector; the metamaterial secondary reflector has the electromagnetic wave reflection property which is similar with that of rotary double-blade double curve surfaces; the metamaterial secondary reflector is provided with a near focus and a far focus; the far focus is overlapped with the center of a phase of the feed source; and the near focus is overlapped with the focus of the metamaterial main reflector. According to the Cassegrain type metamaterial antenna disclosed by the invention, the sheet-shaped metamaterial main reflector replaces a traditional paraboloid; and the manufacturing and the machining are easier and the cost is lower.

Description

technical field [0001] The invention relates to the communication field, and more specifically, relates to a Cassegrain-type metamaterial antenna. Background technique [0002] The Cassegrain antenna consists of three parts, namely the main reflector, sub-reflector and radiation source. Wherein the main reflector is a rotating paraboloid, and the secondary reflecting surface is a rotating hyperboloid reflector. Structurally, one focus of the hyperboloid coincides with the focus of the paraboloid, the focal axis of the hyperboloid coincides with the focal axis of the paraboloid, and the radiation source is located at the other focus of the hyperboloid. The electromagnetic wave emitted by the radiation source is reflected by the sub-reflector once, and the electromagnetic wave is reflected to the main reflector, and then the plane wave beam in the corresponding direction is obtained after being reflected by the main reflector, so as to realize directional emission. [0003] ...

Claims

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Application Information

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IPC IPC(8): H01Q19/185H01Q19/06H01Q15/02H01Q15/23
Inventor 刘若鹏季春霖岳玉涛杨青殷俊
Owner KUANG CHI INST OF ADVANCED TECH
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