EDA for device modeling and microwave circuit design?

Pls suggest the EDA combination that would be best to use for HEMT modeling and later import the model for MMIC circuit design and layout.

I have not used it myself, but the foundries I work with use Agilent IC-CAP for their device modelling work.

http://www.home.agilent.com/agilent/...=-33304.870614
http://www.home.agilent.com/en/pc-12...ter-extraction