Microstrip split ring resonator for microsphere detection and characterization

Abduljabar, Ali, Yang, Xin ORCID: https://orcid.org/0000-0002-8429-7598, Barrow, David ORCID: https://orcid.org/0000-0003-2096-7262 and Porch, Adrian ORCID: https://orcid.org/0000-0001-5293-8883 2015. Microstrip split ring resonator for microsphere detection and characterization. Presented at: 2015 IEEE MTT-S International Microwave Symposium, Phoenix, AZ, USA, 17-22 May 2015. 2015 IEEE MTT-S International Microwave Symposium. 2015 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM (IMS). pp. 1-4.

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Abstract

A new microwave microstrip sensor is presented in this paper for microsphere detection and dielectric characterization within a microfluidic channel. This comprises a 2.5 GHz split ring resonator with a 35 μm gap. To validate the sensor, two sizes of polystyrene microspheres (of diameters 15 and 25 μm) were tested. Measurements of changes in resonant frequency and insertion loss of the odd mode were related to the dielectric contrast provided by the microspheres and their host solvent, here water. COMSOL Multiphysics® was used to model the sensor, and good agreements were found between the simulated and measured results.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Publication
Status:	Published
Schools:	Engineering
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering
Last Modified:	19 Nov 2022 08:40
URI:	https://orca.cardiff.ac.uk/id/eprint/92579

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