I am trying to work with plane wave excitations in HFSS, but I have having some problems.
I can set up the plane wave itself.
I am having problems figuring out how to recover the S-parameters produced by the plane wave excitation. There does not seem to be a port type meant to work specifically with plane waves.
I could use waveports, but I have found that the S11 response of the dominant mode varies based on the number of modes I specify. This does not make sense to me, but that is what happens in my simulation.