Hi,
I am desinging a LNA to be used at a frequency of 400MHz using cadence. I am using right now nmos transistors from the library PRIMLIB. I want to ask if this transistor is suitable or should I use nmosrf instead.
I know nothing abut Cadence, but this was easy to find
the RF NMOS transistors from library PRIMLIBRF valid up till 6GHz. The models provided in PRIMLIB are valid up till 1GHz. **broken link removed** LAB-2 (Tutorial) Simulation of LNA (Cadence SpectreRF)
IF you want to fabricate LNA on PCB then there are good transistors available in market.
For example BFR 92 or 92A,
I am not sure about Cadence because I never used it. but in ADS libraries are available. If not make your own model.
Or buy ready made LNA chips from mini-circuits.