Electronics and Communication Engineering - Microwave Communication - Discussion

Discussion Forum : Microwave Communication - Section 2 (Q.No. 27)
27.
In the given figure the reflected voltage wave after first reflection is
18 V
-18 V
30 V
-30 V
Answer: Option
Explanation:

.

Discussion:
6 comments Page 1 of 1.

Shilpi said:   7 years ago
The reflection coefficient at source end is ((200-100)/(200+100))=(1/3),
so voltage become (90/3)=30,
reflection coefficient at load end is ((25-100)/(25+100))=(-3/5),
so reflected voltage (30*(-3/5))=-18v.

Shailja Tripathi said:   9 years ago
Calculate the output voltage to the reflected voltage.

For that reflected voltage you will get 27 tends to 30 and then do the further calculation.

Caj said:   8 years ago
I believe you need to divide the voltage first:
90(100/200+100)=30.

Then multiply it with the reflection coefficient
30*-0.6= -18.

Sandeep said:   8 years ago
90(200-100/200+100)=90(1/3)=30.

30 is reflected voltage.

Nishanth said:   9 years ago
How 30 came here? Please explain that.

Akhilesh said:   9 years ago
How 30 came here? Please explain that.

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