Цитата(grujic @ Apr 3 2011, 18:49)

Should both ports be single ports?
It depends on the transmission line you are trying to excite.
If we talk about microstrip/strip lines, then the single port is actually the only port you are allowed to use (avoid internal ports for excitation of your structure).
If you use other types of transmission lines (coplanar, etc.), please refer to ADS help for the appropriate port configuration.