Electronics and Communication Engineering - Microwave Communication

31.
A short circuited stub is preferred to an open circuited stub because an open circuited stub
is more difficult to fabricate and construct
is made of transmission line of different Z0
is liable to radiate
is incapable of giving full range of reactance
Answer: Option
Explanation:
No answer description is available. Let's discuss.

32.
If the peak transmitted power in a radar is increased by a factor 81, the maximum range is increased by a factor of
3
9
27
81
Answer: Option
Explanation:
No answer description is available. Let's discuss.

33.
Radar is essentially an echo ranging system
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.

34.
In Gunn diode electrons are transferred from
Ridge guide is essentially a form of capacitively loaded guide
low to high mobility energy bands
valley to domain formation
domain to valley formation
Answer: Option
Explanation:
No answer description is available. Let's discuss.

35.
Consider the following statements about radar Beacon
  1. It is also called transponder.
  2. It includes pulse transmitter, receiver and antenna.
  3. It replies with full power even when the signal receives is weak.
Which of the above statements are correct?
All
1 and 2 only
2 and 3 only
2 only
Answer: Option
Explanation:
No answer description is available. Let's discuss.