Electronics and Communication Engineering - Microwave Communication - Discussion

7. 

In the given figure the reflected current wave after first reflection is

[A]. 0.18 A
[B]. -0.18 A
[C]. 0.3 A
[D]. -0.3 A

Answer: Option B

Explanation:


Anonymous said: (Sep 29, 2015)  
How -18 comes here?

Ankur said: (Feb 21, 2017)  
-18? How? Explain.

Ahir said: (Mar 31, 2018)  
-18 is a reflected voltage.

Amir said: (Aug 8, 2018)  
Where does -18 come from? Explain.

Ebenezer Ajaying said: (Sep 23, 2018)  
Reflection coefficient at the source=1/3;
Reflection coefficient at the load= -3/5;

Therefore, the reflection voltage wave after the first reflection = Vs* source reflection coefficient* load reflection coefficient.

= 90*1/3*3/5 = -18V.

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