simultaneous multi port excitation in ADS

hi
can ADS simulate multi ports with simultaneous excitation?
consider a power combiner that i want to check what happens if i excite the input ports unevenly.
thanks.

EM or circuit simulation?

For circuit simulation, the usual way would be to look at differential and common mode results. There is a balun in the systems palette where you can split/combine two ports into the differential model and common mode component.

For EM visualization, the default excitation is port 1, but you can also excite multiple ports and set the amplitudes/phases independently.

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