Microfluidic Flexible Substrate Integrated Microstrip Antenna Sensor for Sensing of Moisture Content in Lubricating Oil

Table 2

The resonance frequency changes between the simulation and measurement of lubricant oil with different moisture contents.

Lubricating oil moisture	Frequency (GHz)
	Simulation	Measurement	Offset
Moisture 0%	2.230	2.202	0.028
Moisture 0.1%	2.198	2.179	0.019
Moisture 0.2%	2.163	2.156	0.007
Moisture 0.4%	2.143	2.127	0.016
Moisture 0.6%	2.131	2.116	0.015
Moisture 0.8%	2.116	2.099	0.017