Driven Modal Port Excitation for Resonant Cavity

[sudhmech]

Dear All,

I have this struggle to assign port excitation on a multiport resonant cavity using Driven Modal in HFSS. I am confused about whether should I excite all the 4 ports as a wave port (changing the edit source in HFSS drop down to 0 for the other 3 ports) keeping one port as an excitation source. I am attaching images of how my model will look like.
Your input is greatly appreciated!!
Thanks

 

[nomigoraya]

You can go with the default settings using wave port option of HFSS to get the complete S matrix for your system. As during the calculation of complete S matrix each port is treated as source as well as perfectly matched load to calculate all entries of S matrix