Spice with z, y, s, and abcd paramaters

  1. Hey all,

    Is there some sort of program that allows one to analyze circuits in terms of z, y, s, and abcd paramaters? A lot of my microwave course revolves around analysis in this fashion, and I want to ensure that I am determining the correct paramaters for a given set up.

    As an example, in the image we have a transistor with a resistor. The transistor (alone) has the impedance matrix shown in the image. Is there a program that can tell me the z, y, s, abcd parameters of the circuit as an entirety? I can do it by hand, but I'd like to check my answers.

    Thanks in advance,


    Attached Files:

    Last edited: Jan 29, 2014
  2. jcsd
  3. Yes, the .NET statement in SPICE will compute all of that. I confess I have never used the .NET statement...
    If you need a SPICE app, google "LTSPICE".
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