Wideband Metamaterial Crossed-Arm Unit Cell for the Design of Beam-Scanning Circularly Polarized Reflectarray Antenna

Wen, Lehu, Sanz-Izquierdo, Benito, Gao, Steven, Wong, Kai-Kit, Tong, Kin-Fai (2023) Wideband Metamaterial Crossed-Arm Unit Cell for the Design of Beam-Scanning Circularly Polarized Reflectarray Antenna. In: 2023 IEEE MTT-S International Wireless Symposium (IWS) Proceedings. . IEEE ISBN 979-8-3503-3653-5. (doi:10.1109/iws58240.2023.10222486) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:102732)

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Official URL: https://doi.org/10.1109/iws58240.2023.10222486

Abstract

This paper presents a reconfigurable metamaterial unit cell using crossed arms and its application in designing a wideband beam-scanning circularly polarized (CP) reflectarray (RA) antenna. The unit cell is comprised of two pairs of reconfigurable rotated crossed-arms. One pair is connected by two line strips, and the other pair is connected by two arc-shaped strips. The unit cell is verified with a broad CP reflection bandwidth of 7.7-15.5 GHz. An equivalent circuit is utilized to illustrate its working principle for wide CP reflection bandwidth. Based on this meta material unit cell, a broadband RA antenna was designed, developed, and tested for the initial CP performance verification. A high gain of 26.3 dBic with the maximum aperture efficiency of 58.3 % is obtained for this fabricated RA antenna. In addition, a broad CP bandwidth (from 7.6 GHz to 15.9 GHz) for axial ratio <3 dB is achieved for the high gain unidirectional CP radiation.

Item Type:	Conference or workshop item (Proceeding)
DOI/Identification number:	10.1109/iws58240.2023.10222486
Additional information:	For the purpose of open access, the author has applied a CC BY public copyright licence to any Author Accepted Manuscript version arising from this submission.
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Funders:	Engineering and Physical Sciences Research Council (https://ror.org/0439y7842)
SWORD Depositor:	JISC Publications Router
Depositing User:	JISC Publications Router
Date Deposited:	24 Nov 2023 15:32 UTC
Last Modified:	05 Nov 2024 13:08 UTC
Resource URI:	https://kar.kent.ac.uk/id/eprint/102732 (The current URI for this page, for reference purposes)

University of Kent Author Information

Sanz-Izquierdo, Benito.

Creator's ORCID:	https://orcid.org/0000-0001-7313-2520
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