how to import P1dB in ADS

i have a transistor with datasheet and s2p file and i want to simulate an amplifier design with this transistor.
i imported this with a 2-port file block that need s2p file. but other characterizations like P1dB?
please help me on it.

S-parameters are linear small signal parameters.
For non-linear analysis, you need a different type of model.

is it possible that i import s2p file block and an ideal amplifier with s12=1 & s21=1 and import P1dB and Psat and ... in ideal amplifier?

and what characters of transistor from data sheet should be import in ideal amplifier that are placed serie with s2p file block?

For this application you need large signal X-parameters.

http://www.home.agilent.com/agilent/...g&pageMode=OVW
http://emlab.uiuc.edu/ece451/appnotes/X_Parameters.pdf

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