I can't figure out how to use smith chart in my big circuit

Discussion in 'Homework Help' started by Ali Alkhudri, Nov 17, 2015.

  1. Ali Alkhudri

    Thread Starter New Member

    Nov 3, 2015
    19
    1
    Hello
    I have this circuit and I should use smith chart to calculate the Zin
    upload_2015-11-17_18-13-22.png
    First I calculated the admittance of 25 ohm and L
    Y=1/25 - (1/wL)j
    then I divide it with 1/50 to normulize it , I got
    y= 2 - 0.497 j
    upload_2015-11-17_18-33-59.png
    I made a dot in my smith chart then I draw a straight line to center then I rotate 0.337 untill I reach 0.37
    How do I to calculate the parallel Z0 =100 ohm , l=0.066
    Did I do correct?
    thanks
     
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