Hi yank4,

I stand corrected. Far fields can be obtained from your configuration.

Back to your issue.

I don't know how the radiation is calculated from floquet ports and master-slave boundaries so I would suggest using S-Parameters to check how much transmission is happening from port1 to port2. In this way you can also calculate the transmissions to the mode level.

Few other debug ideas for far fields (I am not sure if they will work):

1. Check the coordinate system to which your Infinite Sphere is aligned to

2. Check which mode is excited using "Edit Sources.." option