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Continuously tunable frequency reconfigurable liquid metal microstrip patch antenna

Alqurashi, Khaled Yahya and Kelly, James R. (2018) Continuously tunable frequency reconfigurable liquid metal microstrip patch antenna In: 2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, 09-14 Jul 2017, San Diego, CA, USA.

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This paper presents a continuously tunable microstrip patch antenna formed from liquid metal (eutectic gallium indium). The concept and design of the antenna have been validated through computer simulation. The antenna is capable of reconfiguring its operating frequency in a continuous manner. The proposed design consists of a microstrip patch which is excited via aperture coupling. The EGaIn liquid metal is contained within a microfluidic channel which is formed within a polydimethylsiloxane (PDMS) substrate. Frequency tuning is achieved by altering the amount of fluid within the channel to vary the electrical length of the antenna. The simulated antenna provides a frequency tuning range of approximately 104% and a total usable spectrum (S11 <; -10 dB) of 105%. The antenna can be tuned from 3.21 GHz to 10.12 GHz. The maximum realized gain is 6.9 dBi and the total efficiency is 82%.

Item Type: Conference or Workshop Item (Conference Paper)
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
Alqurashi, Khaled
Kelly, James
Date : January 2018
DOI : 10.1109/APUSNCURSINRSM.2017.8072497
Copyright Disclaimer : © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Uncontrolled Keywords : Aperture-coupled patch antenna; Continuous tuning; Frequency reconfigurable; Liquid metal; Microfluidics; Liquids; Metals; Patch antennas; Microstrip antennas; Tuning; Microstrip
Depositing User : Clive Harris
Date Deposited : 24 Sep 2019 10:20
Last Modified : 24 Sep 2019 10:20

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