Electronics and Communication Engineering - Electromagnetic Field Theory

31.
Which of the following impedance inversion is obtained?
Short-circuited stub
A quarter wave line
Balun transformer
A half wave line
Answer: Option
Explanation:
No answer description is available. Let's discuss.

32.
In case of surface waves the field strength at a point is directly proportional to
antenna height
wave frequency
current of the antenna
distance of the point from the antenna
Answer: Option
Explanation:
No answer description is available. Let's discuss.

33.
Which of the following statement is false?
Television signals are propagated as ground waves
Surface waves can propagate on piezoelectric substrates
The skip distance is the maximum distance upto which ionospheric reflection is possible
Tropospheric scatter propagation is always subjects to fading
Answer: Option
Explanation:
No answer description is available. Let's discuss.