Slot-Ring Multiport Driven Antenna with Improved Airside Radiation for Terahertz Communications

Kgwadi, M., Alharbi, K., Wang, J. and Wasige, E. (2016) Slot-Ring Multiport Driven Antenna with Improved Airside Radiation for Terahertz Communications. European Microwave Conference, London, UK, 03-07 Oct 2016. ISBN 9782874870439 (doi:10.1109/EuMC.2016.7824576)

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Abstract

A slot-ring multiport driven (MPD) antenna is evaluated for operation in the terahertz band with emphasis on air-side radiation on a thick Indium Phosphide (InP) substrate. Geometrical modification to the known slot-ring are made by employing a circular outer ground and a backing ground plane to focus the radiation in the airside direction. Optimization of the modified structure is made to find the optimal size of the upper ground plane. The optimal design achieves maximum directivity of 10.8 dB which is an improvement of 3 dB from the original design. Moreover, the radiation is directed in the airside direction with a front-to-back lobe ratio of 14 dB. The slot-ring antenna design is verified by fabrication at 5 GHz and achieves 10.2 dB directivity.

Item Type:Conference or Workshop Item
Additional Information:This work was supported in part by the European Commission, grant agreement no. 645369 (iBROW Project).
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Wasige, Professor Edward and Wang, Dr Jue and Kgwadi, Mr Monageng
Authors: Kgwadi, M., Alharbi, K., Wang, J., and Wasige, E.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
ISBN:9782874870439
Copyright Holders:Copyright © 2016 EuMA
First Published:First published in European Microwave Conference: 1247-1250
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher
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