Radiation analysis of embedded capacitor based on HFSS

The simulation model of embedded capacitor radiation was established based on HFSS (High Frequency Simulator Structure) software in this paper. Radiation problem of the embedded capacitor at high frequency was studied by the model. Its near-field radiant power gain was obtained and the effects of the variations of the signal frequency, capacitance plate radius and dielectric thickness on radiation power gain were analyzed. The analysis results are shown as follows:near-field radiation power gain of embedded capacitor changes accordingly with the change of the signal frequency; within a certain range of electrode plate radius, radiation power increases with the increase of electrode plate radius; and in a certain range of dielectric thickness, near-field radiation power decreases with the increase of dielectric thickness.