Ultra-Wideband and High Gain Fabry-Perot Cavity Antenna Using Frequency Selective Surface and Parasitic Patch

2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE) Pub Date : 2018-12-01 DOI:10.1109/ISAPE.2018.8634123

Zhi-peng Li, Jing Ma, Bin Shi, Lin Peng

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引用次数: 5

Abstract

An ultra-wideband and high gain Fabry-Perot cavity (FPC) antennas is designed using frequency selective surface (FSS) and parasitic microstrip patch. The 3-dB gain bandwidth of the proposed FPC antenna is 19.1% mainly benefits from the FSS with reflection phase increasing with frequency. Moreover, compared with the source antenna the peak gain of the FPC antenna is improved from 8 dBi to 14 dBi. Compared with the normal U-slot antenna the 10-dB impedance bandwidth of the one with three parasitic patches microstrip U-slot antenna is improved from 11.4% to 54.5%. To validate the feasibility of the proposed approach, an FPC antenna prototype has been designed. It consists of a U-slot parasitic microstrip patch antenna as the source, two complementary frequency selective surfaces (FSS) as the partially reflective surface (PRS). Therefore, this new approach can be an effective way to enhance the gain and impedance bandwidth without increasing the cavity profile or using multi-layer superstrate structures.

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基于频率选择表面和寄生贴片的超宽带高增益法布里-珀罗腔天线

采用频率选择表面(FSS)和寄生微带贴片设计了一种超宽带高增益法布里-珀罗腔(FPC)天线。FPC天线的3db增益带宽为19.1%，主要得益于反射相位随频率增加而增加的FSS。与源天线相比，FPC天线的峰值增益由8 dBi提高到14 dBi。与普通u型槽天线相比，三寄生贴片微带u型槽天线的10db阻抗带宽由11.4%提高到54.5%。为了验证该方法的可行性，设计了一个FPC天线样机。它由一个u型槽寄生微带贴片天线作为源，两个互补频率选择面(FSS)作为部分反射面(PRS)组成。因此，这种新方法可以有效地提高增益和阻抗带宽，而无需增加腔型或使用多层超层结构。

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

2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE)

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