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s2p file in circuit envelope simulation

Question asked by WSTR on Jan 23, 2005
Latest reply on Jan 24, 2005 by WSTR
I am using a s2p file to model the AM/AM and AM/PM characteristic of an amplifier. The comparison of the original data (Re/Im vs input power) to the ADS output (same format) leads to significant differences. I am using the bandpass option of the output selector and the correct frequency.
But I am only using the s21 part of the whole set. Is that valid, or do I have to specify as well s11, s22 and s12?

Thank you any hint. Wolfram