Thanks for your reply and sorry for not giving more details, I just wanted to catch some attention first then move on, however, it's an educational full AWR version and licensed and the BW I'm looking for is 50 MHZ, input impedance 50 ohms and output impedance 50 ohms.. I just want to pass this 1.33 GHZ through this filter not looking for a sharp one by the way so any class of filter would do the job.That is not much of a filter specification. It will probably involve microstripline techniques, since lumped inductors at that frequency would be pretty small.
Are you doing this with the free download version or is this a $5000.00/seat piece of commercial software?
You have specified the center frequency which is only the beginning. How about the input impedance, output impeadance, bandwidth, passband attenuation, stopband attenuation, and the insertion loss. Give us a break, we're not mind readers.