07-20-2012 10:18 AM
I'm looking to build a frequency dependent impedance (by a frequency - impedance table).
For now I got to the point where I have a frequency dependent Voltage Source. I tried to add a Voltage/Current Controlled SPST that would only switch on in a narrow frequency band. Parallel branches would lead to an approximation of the necessary frequency dependent impedance.
I do notice that while excecuting the 'AC analysis' the switch does not switch at all. Is it possible to build a frequency dependent switch with the Voltage/Current Controlled SPST that works with the 'AC analysis'? Alternatives?
07-20-2012 04:45 PM
Dhr,
AC analysis linearizes the signal path (ie no switching, or nonlinear behavior whatsoever). Try using a chirp signal and set F-0 and F-final (the switch should turn on through the chirp signal when the frequency goes through your band).
Regards,
Pat Noonan