基于宽带棋盘型人工磁导体的微带天线RCS缩减技术

发布时间：2018-02-13 07:16

  本文关键词： 人工磁导体 棋盘型结构 雷达散射截面(RCS)缩减 微带天线　出处：《微波学报》2017年01期 　论文类型：期刊论文

【摘要】：利用棋盘型人工磁导体(AMC)结构研究微带天线RCS的缩减技术。给出AMC耶路撒冷十字结构的等效电路模型,据此设计两个不同的AMC耶路撒冷十字,使其产生180°的反射相位差,并组成棋盘型结构。当平面波垂直入射到加载棋盘型AMC结构的微带天线表面时,实现了反射波的相消干涉。在天线带内和带外12~24 GHz都明显降低了微带天线的RCS,最大可以达到36 d B的缩减,并且天线的辐射特性基本保持不变。
[Abstract]:The RCS reduction technique of microstrip antenna is studied by using the chessboard artificial magnetic conductor (AMC) structure. The equivalent circuit model of AMC Jerusalem cross structure is given. Based on this, two different AMC Jerusalem cross are designed to produce 180 掳reflection phase difference. When the plane wave is vertically incident to the surface of the microstrip antenna loaded with the chessboard AMC structure, The interference cancellation of reflected wave has been realized. Both in and out of the band 1224 GHz can obviously reduce the GHz of microstrip antenna, the maximum can be reduced to 36 dB, and the radiation characteristic of the antenna remains basically unchanged.
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本文编号：1507611