Electronics and Communication Engineering - Electromagnetic Field Theory - Discussion
Discussion Forum : Electromagnetic Field Theory - Section 5 (Q.No. 3)
3.
The attenuation in a waveguide near the cut off frequency is
Discussion:
2 comments Page 1 of 1.
Vishaldeepbansal said:
1 decade ago
Answer : D.
The attenuation is very high near the cut off frequency, but decreases to a low value at frequencies some what above cut off.
The attenuation is very high near the cut off frequency, but decreases to a low value at frequencies some what above cut off.
RISHI NIGAM said:
3 years ago
It will be very high because at the cutoff the gain factor will not be a flat band which will become flat as we move away from the cutoff because we know the waveguide is a high pass filter. So as we move away from the cutoff then we are going towards saturated gain a flat line parallel to x-axis.
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