High-Gain Fabry-Perot Antennas With Wideband Low Monostatic RCS Using Phase Gradient Metasurface

Yongtao Jia; Ying Liu; Wenbo Zhang; Jun Wang; Shuxi Gong; Guisheng Liao

doi:10.1109/ACCESS.2018.2886832

IEEE Access (Jan 2019)

High-Gain Fabry-Perot Antennas With Wideband Low Monostatic RCS Using Phase Gradient Metasurface

Yongtao Jia,
Ying Liu,
Wenbo Zhang,
Jun Wang,
Shuxi Gong,
Guisheng Liao

Affiliations

Yongtao Jia: ORCiD; Science and Technology on Antenna and Microwave Laboratory, Collaborative Innovation Center of Information Sensing and Understanding, Xidian University, Xi’an, China
Ying Liu: Science and Technology on Antenna and Microwave Laboratory, Collaborative Innovation Center of Information Sensing and Understanding, Xidian University, Xi’an, China
Wenbo Zhang: Science and Technology on Antenna and Microwave Laboratory, Collaborative Innovation Center of Information Sensing and Understanding, Xidian University, Xi’an, China
Jun Wang: Beijing Electro-Mechanical Engineering Institute, Beijing, China
Shuxi Gong: Science and Technology on Antenna and Microwave Laboratory, Collaborative Innovation Center of Information Sensing and Understanding, Xidian University, Xi’an, China
Guisheng Liao: National Laboratory of Radar Signal Processing, Collaborative Innovation Center of Information Sensing and Understanding, Xidian University, Xi’an, China

DOI: https://doi.org/10.1109/ACCESS.2018.2886832
Journal volume & issue: Vol. 7
pp. 4816 – 4824

Abstract

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The design of two high-gain Fabry–Perot antennas with wideband low monostatic radar cross section (RCS) is presented in this paper. First, a phase gradient metasurface (PGM) without lossy layer is used to realize in-band RCS reduction and high aperture efficiency, simultaneously. The simulated results show that its peak gain is 19.2 dBi, and a high aperture efficiency of 58.6% is achieved. By utilizing the PGM structure, the monostatic RCS is reduced from 7 to 11 GHz, and the in-band co-polarization RCS is reduced by 13.1 dB. After that, a PGM with metamaterial absorber is designed to broaden the bandwidth of RCS reduction. A prototype antenna is fabricated and measured. The peak gain of 17.9 dBi is obtained, and the monostatic RCS is reduced in a wider frequency band of 7–15 GHz.

Published in IEEE Access

ISSN: 2169-3536 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639

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