A microstrip patch resonator with a via connecting ground plane

摘要

A patch resonator with a via connecting ground plane is proposed and studied experimentally. The resonant frequency of this patch resonator is tunable up to about 34% by adjusting the via position in the center line. The lowest resonant frequency of this patch resonator has been reduced by more than 64% of the same size patch resonator without a via being used. The unloaded, radiation Q-factors have been investigated due to the different positions of the via.