Maybe my explanation was a bit confusing, hopefully another picture will make my problem more clear. Within one schematics-file I have two circuits. And I'd like to compare the µ-stability-factor for both of them:
Though when I start simulating, I get the following error message (ADS seems to be confused by Term3 and Term4):
How can I tell ADS that it should calculate the µ-factor for BOTH of the circuits within one simulation?
Added after 10 minutes:
I already tried to enter the equations for the µ-factor directly, which I found in the ADS help and in Pozar's book "Microwave Engineering":
This way I can calculate µ for both circuits simultaneously - but the results are wrong!!
The results are different to the
ADS mu(S) and
mu_prime(S) functions:
As known, µ should give the distance between the Smith-chart center and the unstable region:
- when I compare the ADS mu(S) to the stability circles, this is true: µ = distance between smith center and unstable region
- the results of the equations I entered myself are wrong though, in this case µ does not equal the distance between smith center and unstable region
So what can I do to calculate µ simultaneously (and correctly) for two (or more) circuits?
Any help appreciated,
arefeidi