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Electromagnetic Field Theory - Engineering

Q1:

A loss less transmission line is terminated in a load which reflects a part of the incident power. The measured VSWR is 2. The percentage of the power that is reflected back is

A 57.73

B 33.33

C 0.11

D 11.11

ANS:D - 11.11

Voltage reflection coefficient = s-1/s+1 = 2-1/2+1 = 0.3333.

Power reflection coefficient = (vol. ref. coeff.)^2 = 0.1111.

In terms of percentage = 11.11%