A Low-RCS, High-Gain and Polarization-Insensitive FP Antenna Combing Frequency Selective Rasorber and Metasurface

IF 3.5 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC
Shaojie Wang;He-Xiu Xu;Mingzhao Wang;Shiwei Tang
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引用次数: 0

Abstract

A novel method to engineer high-gain and polarization-insensitive Fabry-Perot (FP) antenna with low scattering is presented by combining a polarization-insensitive broadband frequency selective rasorber with partially reflective surface (FSRP) and a reflective metasurface. The FSRP element consists of an upper indium tin oxide layer printed on polyethylene glycol terephthalate substrate, a metallic loop, and a metallic patch in the middle and bottom layer, respectively, which is designed to absorb most of out-of-band incidence while achieving in-band reflection. The bottom metallic patch is a partially reflected surface which is utilized to construct an FP resonant cavity with the reflective metasurface to ensure in-band radiation. The excellent performance of proposed FP antenna is demonstrated by simulations and measurements, revealing that the antenna exhibits an in-band peak measured gain of 21.8 dBiC at 12 GHz. Besides, a significant out-of-band scattering reduction is achieved within 9.9-11.3 GHz and 13.3-20 GHz under normal detection. Our paradigm setups a new avenue for low radar cross section of a high-gain antenna, promising great potential in practical applications.
一种结合选频拉索和元表面的低 RCS、高增益和偏振不敏感 FP 天线
通过将极化不敏感的带部分反射面的宽带频率选择性激振器(FSRP)和反射元表面相结合,提出了一种设计高增益、极化不敏感、低散射的法布里-珀罗(FP)天线的新方法。FSRP 元件由印制在聚对苯二甲酸乙二醇酯衬底上的上层氧化铟锡层、金属环以及分别位于中间层和底层的金属贴片组成,其设计目的是吸收大部分带外入射,同时实现带内反射。底层金属贴片是一个部分反射面,利用它与反射元面构建 FP 谐振腔,以确保带内辐射。仿真和测量结果表明,该天线在 12 GHz 频率下的带内峰值测量增益为 21.8 dBiC。此外,在正常探测条件下,9.9-11.3 GHz 和 13.3-20 GHz 范围内的带外散射也明显减少。我们的范例为实现高增益天线的低雷达截面开辟了一条新途径,在实际应用中大有可为。
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
CiteScore
6.50
自引率
12.50%
发文量
90
审稿时长
8 weeks
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