I want to run a PSS and then do PNOISE of a circuit block which has also an Oscillator in it. The oscillator noisecontribution also I have to take into consideration. Due to some reason, I also don't want ot simulate the ocillator noise separately.
Is it possible to do it in SpectreRF ?
Could anybody please tell how it can be done if it is possible ?
Hi RF Stuff...
Regarding: want to know whether hb analysis is suitable for hard-non-linearity (inverter based) oscillator as compared to an LC oscillator.
If you have a semi-autonomous circuit (oscillator with a driven source), you MUST use hb with the semi-autonomous option. Only hb has the semi-autonomous capability. Since the circuit is strongly nonlinear, you will need to increase oversample (4 or higher) and also increase the number of harmonic (as compared to a nearly sinusoidal oscillator).
If this is strictly an oscillator and it is a strongly nonlinear oscillator, then use pss analysis (rather than harmonic balance.).
Please see post: /blogs/rf/archive/2008/09/03/tip-of-the-week-when-to-use-harmonic-balance-engine-vs-shooting-newton-engine.aspx?postID=11093