Strangely, I select linear frequency sweep 1.7GHz-2.2GHz but momentum sweeps different frequency points such as 0GHz, 3.6GHz,6.8Ghz etc. And then simultes the structure and returns back results and some errors.
I really do not understand.
Because the same structure could be simulated many times in version 2002 both UNIX and PC version.
When I used RF mode results are more realistic.
Either there is a bug or setup problem.
Anyway , I will try it in Sonnet to find a solution.
Thanks a lot.