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Dual-Band Electronically Beam-Switched Antenna Using Slot Active Frequency Selective Surface

Gu, C, Sanz-Izquierdo, Benito, Gao, Steven, Batchelor, John C., Parker, Edward A., Qin, F, Wei, G, Li, J, Xu, J (2017) Dual-Band Electronically Beam-Switched Antenna Using Slot Active Frequency Selective Surface. IEEE Transactions on Antennas and Propagation, 65 (3). pp. 1393-1398. ISSN 0018-926X. (doi:10.1109/TAP.2016.2647578)

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http://dx.doi.org/10.1109/TAP.2016.2647578

Abstract

Abstract—A dual-band electronically beam-switching antenna using a cylindrical active frequency selective surface (AFSS) is presented. The antenna structure consists of a slot AFSS and an omnidirectional dual-band feed antenna. The PIN diodes of half the AFSS are switched ON and OFF respectively to reconfigure the surface as transparent and opaque to the incident EM waves. Thus by controlling the bias voltages to different columns, the directive beams can be swept in 4 steps covering the whole azimuth plane. A design validation based on a metallic reflector antenna is performed to predict the performances of the proposed AFSS antenna. To validate the design concept, the transmission coefficients of the active FSS sheet are experimentally examined. Then an antenna prototype operating at 2.5 GHz and 5.3 GHz frequency bands is fabricated and measured. Simulation and measurement results of the fabricated antenna are presented to verify the design principle. A comparison between this work and previous (single-band) designs is given to better interpret the characteristics of the dual-band AFSS antenna.

Item Type: Article
DOI/Identification number: 10.1109/TAP.2016.2647578
Subjects: T Technology
Divisions: Faculties > Sciences > School of Engineering and Digital Arts > Broadband & Wireless Communications
Depositing User: Tina Thompson
Date Deposited: 14 Dec 2016 09:02 UTC
Last Modified: 11 Feb 2020 04:08 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/59687 (The current URI for this page, for reference purposes)
Sanz-Izquierdo, Benito: https://orcid.org/0000-0001-7313-2520
Batchelor, John C.: https://orcid.org/0000-0002-5139-5765
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