Electronics and Communication Engineering - Microwave Communication - Discussion

1. 

Consider the following statements, SWR of a transmission line is infinite when the load is

  1. a short circuit
  2. a complex impedance
  3. an open circuit
  4. a pure reactance
Which of the above statements are correct?

[A]. 1 and 3 only
[B]. 1, 2, 3
[C]. 2, 3, 4
[D]. 1, 2, 4

Answer: Option A

Explanation:

No answer description available for this question.

Mohan Kumar said: (Nov 13, 2015)  
SWR is infinite only under open circuit conditions.

Jyotsna Sai said: (Jun 28, 2016)  
SWR = 1+|RL| / (1 - |RL|).

SWR => Standing Wave Ratio.
RL => Reflection Coefficient

SWR = Infinite, when RL = +1 or -1.

RL = +1 When Line is Open Circuited.
RL= -1 When Line Is Short Circuited.

Therefore, the answer is Option A) 1 and 3.

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