The Designer's Guide Community Forum

The Designer's Guide Community Forum
https://designers-guide.org/forum/YaBB.pl
Simulators >> RF Simulators >> Phase noise simulation with two oscillators and a mixer
https://designers-guide.org/forum/YaBB.pl?num=1379463427

Message started by xtal on Sep 17^th, 2013, 5:17pm

Title: Phase noise simulation with two oscillators and a mixer
Post by xtal on Sep 17^th, 2013, 5:17pm

I am trying to simulate a circuit with two LC oscillators and a mixer in Cadence. The two oscillators are off by about 1MHz. However, pss does not converge. I have tried harmonic balance too, with the option of two fundamental tones. This doesn't converge either. Any advice on such a scenario?

Title: Re: Phase noise simulation with two oscillators and a mixer
Post by xtal on Sep 19^th, 2013, 1:26pm

After playing around some more on this, I am guessing I might have to resort to estimating phase noise from transient simulation, something like this : http://www.designers-guide.org/Forum/YaBB.pl?num=1196964298

Any other ideas would be helpful.