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

Thread Starter

Ali Alkhudri

Joined Nov 3, 2015
19
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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