Plot NFmin vs IDS bias condition

Hi.
Does anyone know how to plot NFmin vs IDS bias in Cadence?

Or does anyone know the exactly mathematical formula of NFmin?

My circuit is a MOS LNA with inductive source degeneration.

Thanks!

NFmin should be provided from the manufacture, can't be deducted from the S para.
Gamma Opt and Rn are also.

If you have a valid nonlinear model, you can obtain NFmin vs. IDS by doing Noise analysis.Because nonlinear models have-generally-noise elements.
NFmin is a function in the calculator-as I remember- in ADE of Cadence.You can use this function to plot NFmin vs. IDS..