Visjnoe
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Dear Ken,
Ok, that's good to know.
The symtom is as follows: I model the LNA with/without the aforementioned laplace_nd() and with a 3rd order Taylor series.
In my harmonic balance simulation, I use an input signal with a certain power. Whenever I exclude the filtering from my model, I can see 2nd and 3rd order harmonics at the exact, theoretical power level. Whenever I do include the filtering, the output power levels are all at -300dBm (very low).
I know there is nothing wrong with the filter statement itself, because when I run a conventional SPICE AC analysis, I see the correct bandpass characteristic.
I guess this is an issue I have to take up with the tool vendor (since there does not seem to be a fundamental incompatibility between these code constructs and an RF simulator).
Regards
Peter
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