Low-RCS broadband printed slot antenna based on digital electromagnetic metasurface

A slot antenna and metasurface technology, applied in the direction of antenna, antenna grounding device, antenna grounding switch structure connection, etc., can solve the problems of narrow operating frequency band and high RCS, and achieve the effects of low cost, low profile and broad application prospects.

Active Publication Date: 2021-01-01
AIR FORCE UNIV PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of narrow operating frequency band and high RCS of traditional printed slot antennas, the present invention proposes a low RCS broadband printed slot antenna based on digital electromagnetic metasurface, which can be used as an antenna with stealth performance for various stealth platforms

Method used

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  • Low-RCS broadband printed slot antenna based on digital electromagnetic metasurface
  • Low-RCS broadband printed slot antenna based on digital electromagnetic metasurface
  • Low-RCS broadband printed slot antenna based on digital electromagnetic metasurface

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Embodiment Construction

[0030] The low RCS broadband printed slot antenna based on the digital electromagnetic metasurface proposed by the present invention and its design method are specifically set forth below by describing an embodiment in detail. An example of the embodiment is shown in the accompanying drawings, wherein the same reference numerals from beginning to end represent the same meaning. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0031] The present invention is described below in conjunction with accompanying drawing.

[0032] figure 1It is a low RCS broadband printed slot antenna based on a digital electromagnetic metasurface proposed in an embodiment of the present invention (hereinafter referred to as "antenna of the present invention"), which is a rectangular sheet structure. The antenna of the present invention includes a metasurface metal patc...

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Abstract

The present invention provides a low-RCS broadband printed slot antenna based on the digital electromagnetic metasurface. The low-RCS broadband printed slot antenna is of a rectangular sheet structureand comprises a metasurface metal patch (01), a metasurface dielectric substrate (02), a slotted metal floor (03), a dielectric substrate (04) and a feed metal transmission line (05) from top to bottom. The RCS of the antenna is reduced through the digital arrangement of the metasurface, and the working bandwidth of the antenna is expanded through the coupling of the metasurface and the antenna,thereby achieving the broadband operation and low RCS of the antenna at the same time. The printed slot antenna has the advantages that the metasurface and the antenna structure are integrally formed,the radiation and scattering performance is improved, and the structure is compact and simple.

Description

technical field [0001] The invention relates to antenna design technology, in particular to realizing broadband radiation and low RCS performance of a printed slot antenna by using a digital electromagnetic metasurface, and more particularly to a low RCS broadband printed slot antenna based on a digital electromagnetic metasurface. Background technique [0002] Digital electromagnetic metasurface is a new frontier of metasurface research in recent years. It uses different numbers to represent different metasurface unit structures, and arranges electromagnetic metasurfaces digitally on a surface. Different arrangements can realize spatial reconstruction of electromagnetic waves. The digital electromagnetic metasurface can realize a series of functions such as low RCS and beam scanning, and it provides a new technical approach for designing high-performance antennas. [0003] A slot antenna is an antenna formed by opening a slot in the surface of a metal structure. Printed s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50H01Q5/307
CPCH01Q1/38H01Q1/48H01Q1/50H01Q5/307
Inventor 杨欢欢曹祥玉李桐杨宾锋代传金丛丽丽郭泽旭
Owner AIR FORCE UNIV PLA
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