Microwave-Based Electrochemical Sensor Design by SRR Approach for ISM Sensing Applications

Table 1

Comparison of the simulation and measurement results at resonance frequencies for each percentage of methanol.

Sample ratio	Resonance frequency		in dB
	Simulation	Measurement	Simulation	Measurement
20% methanol	2.47 GHz	2.43 GHz	-37 dB	-25.5 dB
40% methanol	2.45 GHz	2.40 GHz	-42 dB	-25.7 dB
60% methanol	2.44 GHz	2.38 GHz	-39 dB	-26 dB
80% methanol	2.43 GHz	2.36 GHz	-45 dB	-26 dB
100% methanol	2.38 GHz	2.35 GHz	-44 dB	-26.5 dB