Impedance matching using a Smith Chart

Discussion in 'Homework Help' started by stevy123, Apr 15, 2008.

  1. stevy123

    Thread Starter Active Member

    Nov 19, 2007
    61
    0
    Hi All

    Can anyone point me int he right direction how to go about impedance matching on a smith chart?

    I am trying to use an l match circuit.
    i am using 30 + j20 @1Ghz
    so firstly i normalise the values at 50 ohms
    so 30/50 = 0.6 and 20/50 = 0.4
    so now i plot 0.6 + 0.4J on the smith chart.
    (what circles do i read from to plot the 0.6 which is the impedance and the 0.4j which is the admitance.)

    how do i normalise this circuit? what formula do i need to use?
    Anyone any ideas.
    all help greatly appriciated.
    regards
    steve
     
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