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Electronics and Communication Engineering - Communication Systems - Discussion

Discussion Forum : Communication Systems - Section 7 (Q.No. 32)
Communication Systems
32.
SWR for a transmission line is infinity when the load is
  1. Short circuit
  2. Complex impedance
  3. Open circuit
  4. Pure reactance
Of the above statements:
1, 3, 4 are correct
1 and 3 are correct
2, 3, 4 are correct
1, 2, 4 are correct
Answer: Option
Explanation:

SWR is infinite if |rv| = 1.

Discussion:
3 comments Page 1 of 1.
Saurabh kumar said:   5 years ago
VSWR is infinity when the load is terminated.

1. Complex impedance
2. Short circuited (reflection coefficient = 1 so vswr=( 1+reflection coefficient)/1- reflection coefficient).
3. pure reactance or pure inductance.

The right option is A.
Avadhut said:   8 years ago
The SWR is one only when line is terminated by complex impedance.
OujaMori said:   9 years ago
Answer should be A. It is also infinite at Pure Reactance since there is no resistance.
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