I am learning RF design and that's my first assignment to design and simulate a LNA. I just caculated the parameters for simulation. But the simulation result is quite different from the caculated values. I change the load inductor to make the S11=-3.98dB, S12=-47.54dB, S21=11.737dB, S22=-7.29dB, K=14.65167, NF = 3.734dB.
I am not sure those figure is OK or that's a bad design.
Another thing is I also change the inductor to the Gate (Lg) smaller and I hope to check the input impedance if it is matching but I don't know how to do that in Spectre.
Can anyone give me some help?
thanks