Simulation of common mode radiation with various ground plane shapes

摘要

We simulated electromagnetic radiation with various ground plane shapes by the moment method. The common mode radiations have the spectra similar to the energy spectra transferred from the wave source in the free space to the feeding point on the edge of the ground plane. When the rectangular ground plane was transformed into T-shape one, the common mode radiation increased. But, by expanding the corners of the T-shaped ground plane further, we could suppress the common mode emission within a given spectra range.