Bow-tie Antenna for Terahertz Resonant Tunnelling Diode Based Oscillators on High Dielectric Constant Substrate

Alharbi, K. H., Ofiare, A., Kgwadi, M., Khalid, A.-u.-H. and Wasige, E. (2015) Bow-tie Antenna for Terahertz Resonant Tunnelling Diode Based Oscillators on High Dielectric Constant Substrate. In: 11th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME), Glasgow, Scotland, 29 Jun - 02 Jul 2015, pp. 168-171. ISBN 9781479982295 (doi:10.1109/PRIME.2015.7251361)

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Abstract

In this paper, a broadband bow-tie slot antenna is presented. The coplanar waveguide (CPW) fed antenna is fabricated on an InP substrate for same chip integration with the promising resonant tunnelling diode (RTD) terahertz (THz) oscillator which has the capability of room temperature operation and with relative high power. The antenna exhibits a very wide bandwidth (return loss S11 <;-10 dB) around the design frequency (300 GHz). However, the radiation pattern is degraded because of the large dielectric constant of the InP substrate. A technique to overcome this problem employing a reflector ground plane underneath a thin substrate of low dielectric constant is presented. Initial simulation results of this technique are reported and experimental validation at lower frequency (17 GHz) shows the feasibility of the concept.

Item Type:Conference Proceedings
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Wasige, Professor Edward and Kgwadi, Mr Monageng and Khalid, Dr Ata-ul-Habib and Ofiare, Dr Afesomeh
Authors: Alharbi, K. H., Ofiare, A., Kgwadi, M., Khalid, A.-u.-H., and Wasige, E.
College/School:College of Science and Engineering > School of Engineering
College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
ISBN:9781479982295
Copyright Holders:Copyright © 2015 IEEE
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher
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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
585691Compact MMIC Teraherz Sources in the 0.1-1 THz RangeEdward WasigeEngineering & Physical Sciences Research Council (EPSRC)EP/J019747ENG - ENGINEERING ELECTRONICS & NANO ENG