What equation computes the capacitance in the Genesys Varactor model. The junction potential used in published varactor models is not an input parameter for the Varactor model.
This simple model uses predefined junction potential constant = 0.7 V:
V0 = 0.7 B1=-1/V0 CVQ=Co/(1+VQ/0.7)^Gamma Gs=2*PI*FQ*CVQ*Q if Gs <= 0 then Gs=1e-12 Rs=1/Gs
I've added now V0, as parameter of the model, which definetly has to be defined this way, but historically was not. You can easily add any parameters to any Genesys XML model (from Models library), double clicking it in the library selector, which loads a copy of the model in the workspace, than editing it as you need, saving updated model in a custom library, or just using it in the workspace directly. Regards, Sergey
This simple model uses predefined junction potential constant = 0.7 V:
V0 = 0.7
B1=-1/V0
CVQ=Co/(1+VQ/0.7)^Gamma
Gs=2*PI*FQ*CVQ*Q
if Gs <= 0 then Gs=1e-12
Rs=1/Gs
I've added now V0, as parameter of the model, which definetly has to be defined this way, but historically was not.
You can easily add any parameters to any Genesys XML model (from Models library), double clicking it in the library selector, which loads a copy of the model in the workspace, than editing it as you need, saving updated model in a custom library, or just using it in the workspace directly.
Regards,
Sergey