Question about Zin and out?

Discussion in 'General Electronics Chat' started by samy555, Jun 21, 2013.

  1. samy555

    Thread Starter Active Member

    May 24, 2010
    116
    3
    Hello
    For the circuit shown, Zin=100+1000=1100 ohm
    Zout = 100//1000 = 90.9 ohm
    On the Network Analyzer: Z11 = 11+j0, Z22 = 30+j0
    How to relate the measured value to the calculated value
    [​IMG]
    thanks
     
  2. t_n_k

    AAC Fanatic!

    Mar 6, 2009
    5,448
    782
    There's clearly something wrong with the tool or its application.

    What S parameters [i.e. all four s11, s12, s22, s21] does the application give you?
     
  3. The Electrician

    AAC Fanatic!

    Oct 9, 2007
    2,281
    326
    I don't know how your simulated network analyzer works, but a real analyzer wouldn't like having a 10 volt source connected to the input port at the same time the analyzer is trying to make a measurement.

    What do you get if you remove the 10 volt source when making the analyzer measurements?
     
  4. samy555

    Thread Starter Active Member

    May 24, 2010
    116
    3
    [​IMG]

    But I think that voltage source must be disconnected as The Electrician suggested
    [​IMG]

    [​IMG]

    its ok and the measured values exactly = the calculated
    thank you alot
     
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