Hybrid Terahertz Antenna Design for Body-Centric Applications

Abohmra, A., Jilani, F., Abbas, H. , Alomainy, A., Imran, M. A. and Abbasi, Q. H. (2019) Hybrid Terahertz Antenna Design for Body-Centric Applications. In: IET Antennas and Propagation Conference (APC 2019), Birmingham, UK, 11-12 Nov 2019, ISBN 9781839531705 (doi: 10.1049/cp.2019.0704)

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Abstract

Short-range wireless communication at terahertz (THz) frequencies has many obstacles, given the very small antenna size (a few micrometers). Moreover, traditional radiating antenna elements such as copper, gold etc. have low mobility of electrons at THz frequencies, resulting in a high channel attenuation and low antenna efficiency. On the other hand, graphene displays remarkable electrical properties at THz frequencies and, can be an ideal material for antenna design resulting in high efficiency. However, there are challenges due to difficulties in fabrication and high absorption, particularly at higher chemical potentials. In this paper, we evaluate the performance of a graphene-based THz antenna in free-space and on-body using three layers of human skin. Simulated results show that the proposed antenna has a bandwidth of 20 GHz and offers a radiation efficiency of 93% in free-space, whereas 50% on-body, with respective gains of 5.9 dB and 5 dB. The small and flexible structure of the antenna along with excellent impedance matching, and high bandwidth make it a suitable candidate for short-range wireless communication in the vicinity of the human body.

Item Type:Conference Proceedings
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Abbasi, Dr Qammer and Imran, Professor Muhammad and Abbas, Dr Hasan and Abohmra, Abdoalbaset Ali Yusef
Authors: Abohmra, A., Jilani, F., Abbas, H., Alomainy, A., Imran, M. A., and Abbasi, Q. H.
College/School:College of Science and Engineering > School of Engineering
College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
College of Science and Engineering > School of Engineering > Systems Power and Energy
ISBN:9781839531705
Published Online:30 June 2020
Copyright Holders:Copyright © 2020 IEEE
First Published:First published in Antennas and Propagation Conference 2019 (APC-2019)
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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