i tried to simulate the vermis_18f component (varactor) in 0.18 um in cadence spectre. i have done connections using port 1 connected to one side (assuming it as gate) and grounded the other pin of the component ( i suppose that body=source= drain are connected). am i correctly doing this?

second,i want to find quality factor of varactor using s parameters.How to do that?

how to plot c-vgs curve in spectre.

thanks
manjeet