rapid ip3
wangyufn said:
There are several methods to simulate IP3 in SpectreRF.
First you have to understand a difference between PSS and QPSS.
PSS is one basis expansion.
QPSS is multi bases expansion.
For example, assume IP3 evaluation of amplifier where you drive two large signal tones as input.
If frequencys of two drive signals are set such that a fundamental frequency of PSS is relative large, you can do calculation of IP3 using only PSS.
If frequencys of two drive signals are set such that a fundamental frequency of PSS is fairly small, you can do calculation of IP3 using PSS/PAC or only QPSS.
wangyufn said:
3) Rapid IP3 using PSS/PAC analysis
4) Rapid IP3 using AC analysis
"Rapid IP3" is a perturbation of projection method based on Born approximation.
For mixer, use "Rapid IP3 using PSS/PAC".
For amplifier, use "Rapid IP3 using AC".
wangyufn said:
What is the difference between them? And in different applications, how to make a choice of the proper method?
Can anyone help me? Thanks.
About Cadence tool, you had better post in the following.
https://www.designers-guide.org/Forum/YaBB.pl?board=rfsim