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A novel Fabry–Pérot (FP) antenna with high gain, low radar-cross-section (RCS), and wideband circular polarization

Published online by Cambridge University Press:  05 July 2021

Qiang Chen*
Affiliation:
Air Force Early Warning Academy, Wuhan, Hubei 430019, China
Changhui He
Affiliation:
Air Force Early Warning Academy, Wuhan, Hubei 430019, China
Di Zhang
Affiliation:
Air Force Early Warning Academy, Wuhan, Hubei 430019, China
Liang Hong
Affiliation:
Air Force Early Warning Academy, Wuhan, Hubei 430019, China
Siyu Huang
Affiliation:
Air Force Early Warning Academy, Wuhan, Hubei 430019, China
Jiabei Hu
Affiliation:
College of Physics and Electronic-information Engineering, Hubei University, Wuhan, Hubei, 430062, China
Zhulin Cui
Affiliation:
Harbin Engineering University, Harbin, Heilongjiang, 150000, China
*
Author for correspondence: Qiang Chen, E-mail: 1062620145@qq.com

Abstract

We propose a novel Fabry–Pérot (FP) antenna consisting of a checkered polarization-conversion metasurface (PCM), corner-cut square patch antennas, and sandwiched compounds. The proposed antenna achieves low radar-cross-section (RCS), high gain, and wideband circular polarization (CP). The corner-cut square patch antennas facilitate high reflectivity, satisfactory transmission magnitude, and the desired phase difference. An embedded metal between two rings of substrate contributes to reducing cross-polarization, improving transmission efficiency, enhancing bandwidth, and reducing RCS. Following simulations, we fabricated a prototype of the proposed antenna and tested its performance. Measurements from the simulation and prototype tests were similar within a reasonable margin of error. Compared with alternative antennas, our proposed FP antenna offers high gain, wideband CP, low cost, a low RCS, and a lower profile.

Type
Antenna Design, Modelling and Measurements
Copyright
Copyright © The Author(s), 2021. Published by Cambridge University Press in association with the European Microwave Association

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