exp
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Thanks, Ken!
So are you saying I should forget about obtaining linearity from swept-dc in the first place? (by definition, it involves tripe derivatives).
My issue is that qpss/shooting+qpac, qpss/hb+qpac, hb, ... all give me non-monotonic (and hence non trustworthy) IIP3 curves. Even after tightening all tolerances to the maximum with simplistic circuits. It may be the models (however, it is a PSP-like model, so the known VDS0->0 cannot be an issue) but I cannot change the models. That was the reason to go to a simple DC sweep first.
Do you have any other idea how to extract IIP3 if swept-dc, hb, shooting fails? (tran+dft would be an option but it takes too long and much fine tuning)
Thank you! exp
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