Electronics and Communication Engineering - Microwave Communication - Discussion

2. 

A loss less line of characteristic impedance Z0 is terminated in pure reactance of -jZ0 value. VSWR is

[A]. 10
[B]. 2
[C]. 1
[D]. infinity

Answer: Option D

Explanation:

A pure reactance does not absorb any power.

Therefore VSWR is infinite because |rv| = 1.


Faizz said: (May 25, 2016)  
Can I get some information about VSWR?

Gurpreet Kaur said: (Jun 7, 2016)  
@Faizz.

VSWR means Voltage Standing Wave Ratio = (1 + |rho v|) / (1 - |rho v|).

Here (rho v) is (reflected power)/(incident power).

Swetha said: (Sep 27, 2016)  
VSWR = (1 + rho)/(1 - rho),
rho = (ZL - Z0)/(ZL + Z0).

Swetha said: (Sep 27, 2016)  
VSWR = (1 + rho)/(1 - rho),
rho = (ZL - Z0)/(ZL + Z0).

Vinay said: (Dec 3, 2016)  
How? Explain it in clear.

Guru said: (Dec 6, 2016)  
What's that RHO?

Roli said: (Apr 14, 2017)  
Reflection coefficient is ρ.

Vineet said: (Apr 3, 2018)  
In that expression of VSWR, it is the magnitude of reflection coefficient |ρ|.

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