A Low-RCS, High-GBP Fabry&#x2013;Perot Antenna With Embedded Chessboard Polarization Conversion Metasurface

Zhiming Liu; Shaobin Liu; Jens Bornemann; Xing Zhao; Xiangkun Kong; Zhengyu Huang; Borui Bian; Dongdong Wang

doi:10.1109/ACCESS.2020.2990602

IEEE Access (Jan 2020)

A Low-RCS, High-GBP Fabry–Perot Antenna With Embedded Chessboard Polarization Conversion Metasurface

Zhiming Liu,
Shaobin Liu,
Jens Bornemann,
Xing Zhao,
Xiangkun Kong,
Zhengyu Huang,
Borui Bian,
Dongdong Wang

Affiliations

Zhiming Liu: ORCiD; College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
Shaobin Liu: ORCiD; College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
Jens Bornemann: ORCiD; Department of Electrical and Computer Engineering, University of Victoria, Victoria, BC, Canada
Xing Zhao: ORCiD; College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
Xiangkun Kong: ORCiD; College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
Zhengyu Huang: College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
Borui Bian: College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
Dongdong Wang: ORCiD; China Ship Development and Design Center, Wuhan, China

DOI: https://doi.org/10.1109/ACCESS.2020.2990602
Journal volume & issue: Vol. 8
pp. 80183 – 80194

Abstract

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A Fabry-Perot (FP) antenna with high gain-bandwidth product (GBP) and wideband radar cross section (RCS) reduction is proposed using an embedded chessboard polarization conversion metasurface (CPCM). A polarization conversion metasurface (PCM) unit and its mirror unit are etched on both sides of a dielectric substrate with chessboard arrangement to form a CPCM. The in-band and out-of-band low-RCS features of the FP antenna are realized by destructive interference, and the high GBP is attributed to the FP resonant cavity. Moreover, an additional small CPCM designed for another PCM unit is embedded into the original CPCM to construct an embedded CPCM, which helps to improve in-band RCS reduction and has a positive effect on gain enhancement and 10-dB impedance bandwidth. The measured results show that the FP antenna with embedded CPCM has a 10-dB return-loss bandwidth of 8.48-12.21 GHz (36.1%), a GBP of 1338, a 3-dB gain bandwidth of 8.9-11.5 GHz (25.5%) and a maximum realized gain of 17.2 dBi. Meanwhile, the measured RCS reduction band covers 8-26 GHz (105.9%) with a peak RCS reduction of 21.2 dB at 9.4 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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