Hi,
You can start up with the following appnotes:
1.Diode Model Parameter Extraction from Manufacturers' Data Sheets
2.PIN Diode Model Parameter Extraction from Manufacturers' Data Sheets
9705-1.pdf,9708-1.pdf , Ansoft appnotes, they should be in the RFGlobal net Library
3.Carrier Lifetime and Forward Resistance in RF PIN-Diodes
Application Note No. 034, Infineon
I started with these when I modeled the BA885. If you don't find the articles, send me a PM
There are some interesting appnotes at the Alphaindusty , and Agilent sites.
regards,
Al