[Ngspice-users] Use S-Parameter in AC- Simulation

[Roland B. <rol...@bp...>]

Hi,
obtaining S-Parameters from a simulation is well documented and works good.
But what if I have S-Parameters for a device (in my case ad8307) and 
want to use
them in an AC simulation?

There is a paper "Create S-Parameter Subcircuits for Microwave and RF 
Applications"
where a simulation model is shown for pspice. The shown solution leads 
to a VCVS
with a FREQ option:

Exxxx n1 n2 FREQ {V(x,y)}= MAG
+(  0.01gHz,    1.00, -0.2)
.....

As far as I know, using FREQ for a Exxxx Source is not possible in ngspice.
Is there an other way to do use S-Parameter in ngspice

Best regards
Roland