Loading....
Coupon Accepted Successfully!

 

Solved Problems-3

Problem-3
A transmission line is lossless and is 30 m long. It is terminated in a load impedance of ZL = (30 + j20)Ω at a frequency of 10 MHz. The inductance and capacitance of the line are L = 100 nH/m, C = 20 pF/m. Find the input impedance of the line at the source end and at the midpoint of the line.
Solution
Here, ZL = (30 + j20) Ω, L = 100 nH/m, C = 20 pF/m, f = 10 MHz, l = 30 m

The characteristic impedance of the line is,
 
Description: Description: 88044.png
 
 
The phase constant of the line is,
 
Description: Description: 88035.png

So, the input impedance at the source end is given as,
 
Description: Description: 88026.png
 
So, the input impedance at the midpoint (z = 15 m) is given as,
 
Description: Description: 88017.png
 





Test Your Skills Now!
Take a Quiz now
Reviewer Name