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

In this paper, we demonstrate the sensing feasibility of the proposed high-Q resonator using a phosphate-buffered salinedroplet atmicrowave frequencies. In the experimental results, the resonant frequency, signal level, and Q-factor of theS21-parameter with and without a 1-μldroplet were changed to about 230 MHz, 32 dB, and 1500, respectively. The resonator system was found to be suitable fordroplet sensing with a small volume due to its small and compact scheme. This resonator system is expected to play an important role indroplet sensing with differentdielectric constants.

Source: Review of Scientific Instruments - September 30, 2016 Category: Physics Authors: Hee-Jo Lee and Jong-Gwan Yook Source Type: research