Coupled dielectric-split ring microwave resonator for liquid measurements in microfluidic channels at nanoliter volumes

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Colleges, School and Institutes

External organisations

  • Imperial College London
  • Department of Materials


A microwave dielectric resonator based sensor system has been investigated with respect to its sensitivity for the assessment of aqueous liquids. The system exploits the field enhancement of a split ring structure while retaining high and tunable quality factors due to weak and adjustable coupling between a planar split-ring and a dielectric resonator. The proposed sensor with integrated microfluidic channel allows investigation of volumes of liquids less than 1 nL and is capable of detecting small changes in relative permittivity, as demonstrated by measurements of water-ethanol solutions.


Original languageEnglish
Title of host publication2016 46th European Microwave Conference (EuMC)
Publication statusPublished - 19 Jan 2017
Event46th European Microwave Conference, EuMC 2016 - London, United Kingdom
Duration: 4 Oct 20166 Oct 2016

Publication series

NameMicrowave, European Conference


Conference46th European Microwave Conference, EuMC 2016
CountryUnited Kingdom


  • Dielectric resonator, Liquid dielectric sensor, Microfluidic sensor, Split-ring resonator