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Title: | Wideband Metamaterial Crossed-Arm Unit Cell for the Design of Beam-Scanning Circularly Polarized Reflectarray Antenna |
Authors: | Wen, L Sanz-Izquierdo, B Gao, S Wong, K-K Tong, K-F |
Keywords: | circularly polarized antenna;metamaterial unit cell;metamaterial unit cell;reflectarray antenna;wide bandwidth |
Issue Date: | 14-May-2023 |
Publisher: | Institute of Electrical and Electronics Engineers (IEEE) |
Citation: | Wen , L. et al. (2023) 'Wideband Metamaterial Crossed-Arm Unit Cell for the Design of Beam-Scanning Circularly Polarized Reflectarray Antenna', 2023 IEEE MTT-S International Wireless Symposium, IWS 2023, Qingdao, China, 14-17 May, pp. 1 - 3. doi: 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. |
URI: | https://bura.brunel.ac.uk/handle/2438/28542 |
DOI: | https://doi.org/10.1109/IWS58240.2023.10222486 |
ISBN: | 979-8-3503-3653-5 (ebk) 979-8-3503-3654-2 (PoD) |
Other Identifiers: | ORCiD: Lehu Wen https://orcid.org/0000-0001-9757-1114 ORCiD: Lehu Wen https://orcid.org/0000-0001-9757-1114 ORCiD: Benito Sanz-Izquierdo https://orcid.org/0000-0001-7313-2520 ORCiD: Steven Gao https://orcid.org/0000-0002-7402-9223 |
Appears in Collections: | Dept of Electronic and Electrical Engineering Research Papers |
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