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Droplet sensing using small and compact high-Q planar resonator based on impedance matching technique

Authors :
Hee Jo Lee
Jong-Gwan Yook
Source :
Review of Scientific Instruments. 87:094706
Publication Year :
2016
Publisher :
AIP Publishing, 2016.

Abstract

In this paper, we demonstrate the sensing feasibility of the proposed high-Q resonator using a phosphate-buffered saline droplet at microwave frequencies. In the experimental results, the resonant frequency, signal level, and Q-factor of the S21-parameter with and without a 1-μl droplet were changed to about 230 MHz, 32 dB, and 1500, respectively. The resonator system was found to be suitable for droplet sensing with a small volume due to its small and compact scheme. This resonator system is expected to play an important role in droplet sensing with different dielectric constants.

Details

ISSN :
10897623 and 00346748
Volume :
87
Database :
OpenAIRE
Journal :
Review of Scientific Instruments
Accession number :
edsair.doi.dedup.....8f14ab797a389c50cf21ec8d8a31120a
Full Text :
https://doi.org/10.1063/1.4963701