ADS optimization question

[Leiser]

Hi,

I´doing an ADS simulation using a MMIC LNA from avago technologies. I have downloaded the ADS model from the website. The model works fine. I´m doing an optimization simulation of my circuit components, mainly input and output filters. However, ADS also changes the internal components of the LNA model, for which I don´t have access. Does anyone know how can I block the model for optimization?

Thanks.