Access to frequency value in S-Parameter Sweep

[Mar70]

Hi,

I would like to use the current frequency value of S-parameter sweep for frequency dependant variable in equation.

So the assigned parameter should change with frequency according to formula.

Is there a way to do this?

With best regards

 

[Carsten]

Hi,

In the “Equation defined component in frequency domain”, the variable ‘freq’ is defined. So you can do things like this (equals a 10nH inductor)

But ‘freq’ is not defined in equation blocks.

[Vincent]

Hi,

Like this?
The external variable “f” in “Equation” is equal to the internal variable “frequency” in the S-parameter simulation.

This allows us to calculate the impedance via S11: = mag(50*(1+S[1,1])/(1-S[1,1])) with respect to the internal variable “frequency” and also the theoretical impedance 2*pi*f*L where the variable “f” is the image of the internal variable “frequency”.

[Author]

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