Aperture-Coupled Microstrip Resonator for Millimeter-Wave Passive Pressure Sensors

摘要

In this paper, a millimeter-wave passive pressure sensor based on an aperture-coupled microstrip resonator is proposed. The aperture-coupling technique is applied here for improving the airtightness of pressure sensors and for avoiding unwanted electromagnetic radiation occurring when using the widely used probe-fed technique. The measured additional insertion loss due to the aperture-coupling is found to be of 1.4dB only. Both 3D full-wave electromagnetic simulation results and experimental data are reported for the validation of the novel millimeter-wave sensor design.