ISRO Electronics & Communication (ECE) 2008 - Question 72

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Topic: Electromagnetics

A transmission line has a VSWR of 2, the reflection coefficient is

  • A. $1/3$
  • B. 0
  • C. $1/4$
  • D. $1/2$

Answer: A. $1/3$

Explanation: $VSWR=\frac{1+|\rho|}{1-|\rho|}$\n$2=\frac{1+|\rho|}{1-|\rho|}$\n$\Rightarrow 2-2|\rho|=1+|\rho|$\n$|\rho|=\frac{1}{3}$

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