Wideband RCS Reduction of Microstrip Patch Antenna Using Quaternionic Metasurface

IF 1.2 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Microwave and Optical Technology Letters Pub Date : 2025-01-30 DOI:10.1002/mop.70122

Krunal Patel

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Abstract

This paper presents a novel microstrip patch antenna with a quaternionic metasurface. The quaternionic metasurface is designed using a pair of polarization conversion metasurface unit cells and the other pair of artificial magnetic conductor unit cells. The designed metasurface is used to reduce the radar signature of a microstrip patch antenna. The designed quaternionic metasurface shows an overall RCS reduction bandwidth of 115.62% over the frequency range of 6.55–24.5 GHz and 10-dB RCS reduction bandwidth of 65.86% over the frequency range of 8.3–16.45 GHz. The designed low RCS microstrip patch antenna using quaternionic metasurface shows overall RCS reduction bandwidth from 6.8 to 24.4 GHz (112.82%) as compared with the metallic plate and the reference patch for TE mode. It shows 10 dB RCS reduction bandwidth from 8.31 to 9.85 GHz (16.96%) and 12.38 to 16.34 GHz (27.58%) when compared with the reference patch for TE mode. Considering TM mode, the overall RCS reduction is obtained from 6.9 to 24 GHz (110.68%) as compared with the reference patch antenna. A total of 10 dB RCS reduction is observed over the frequency band of 8.4–9.89 GHz (16.29%) and 12.4–16.87 GHz (30.54%) as compared with the conventional patch antenna in the same plane. The low RCS patch antenna shows off remarkable in-band and out-of-band RCS reduction. The proposed concept gives wide RCS reduction bandwidth that may not be obtained by the low RCS metasurface designed by only PCM or AMC unit cells.

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利用四元元超表面降低微带贴片天线宽带RCS

提出了一种四元元超表面微带贴片天线。采用一对极化转换超表面单元和另一对人工磁导体超表面单元设计了四元元超表面。设计的超表面用于降低微带贴片天线的雷达特征。所设计的四元数超表面在6.55 ~ 24.5 GHz频率范围内的RCS总体降低带宽为115.62%，在8.3 ~ 16.45 GHz频率范围内的10db RCS总体降低带宽为65.86%。采用四元数超表面设计的低RCS微带贴片天线与金属板和参考贴片相比，总体RCS降低带宽从6.8 GHz降至24.4 GHz（112.82%）。与TE模式的参考贴片相比，它显示了10 dB的RCS减少带宽，从8.31到9.85 GHz（16.96%）和12.38到16.34 GHz（27.58%）。考虑TM模式，与参考贴片天线相比，总体RCS降低从6.9 GHz到24 GHz（110.68%）。在同一平面的8.4 ~ 9.89 GHz（16.29%）和12.4 ~ 16.87 GHz（30.54%）频段，与传统贴片天线相比，共降低了10 dB的RCS。低RCS贴片天线显示出显著的带内和带外RCS降低。所提出的概念提供了宽的RCS降低带宽，这是仅由PCM或AMC单元设计的低RCS元表面所无法获得的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Microwave and Optical Technology Letters 工程技术-工程：电子与电气

CiteScore

3.40

自引率

20.00%

发文量

371

审稿时长

4.3 months

期刊介绍： Microwave and Optical Technology Letters provides quick publication (3 to 6 month turnaround) of the most recent findings and achievements in high frequency technology, from RF to optical spectrum. The journal publishes original short papers and letters on theoretical, applied, and system results in the following areas. - RF, Microwave, and Millimeter Waves - Antennas and Propagation - Submillimeter-Wave and Infrared Technology - Optical Engineering All papers are subject to peer review before publication