Improved split-ring resonator for microfluidic sensing

Rowe, David James, Al-Malki, Sultan, Abduljabar, Ali Amin, Porch, Adrian ORCID: https://orcid.org/0000-0001-5293-8883, Barrow, David ORCID: https://orcid.org/0000-0003-2096-7262 and Allender, Christopher J. 2014. Improved split-ring resonator for microfluidic sensing. IEEE Transactions on Microwave Theory and Techniques 62 (3) , pp. 689-699. 10.1109/TMTT.2014.2299514

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Abstract

We present a method of making low-loss split-ring resonators (SRRs) for microfluidic sensing at microwave frequencies using silver-coated copper wire. We show that a simple geometric modification and the use of square cross-section wire give greater electric field confinement in the capacitive region of the resonant sensor. We use a combination of theoretical analysis, finite-element simulations, and empirical measurements to demonstrate the subsequent increases in the sensitivity of these SRRs for complex permittivity measurements of some common solvents.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Engineering Pharmacy
Subjects:	R Medicine > RS Pharmacy and materia medica
Uncontrolled Keywords:	Dielectric measurements; Microfluidics; Microwave sensors.
Publisher:	IEEE
ISSN:	0018-9480
Date of First Compliant Deposit:	30 March 2016
Last Modified:	08 Nov 2023 00:37
URI:	https://orca.cardiff.ac.uk/id/eprint/59763

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