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Electronics and Communication Engineering - Microwave Communication

Exercise : Microwave Communication - Section 4
36.
Which one of the following can be used for amplification of microwave energy?
TWT
Magnetron
Reflex klystron
Gunn diode
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.
If ZTE is wave impedance for TE waves, Ed is maximum dielectric strength of insulating material, a and b are the width and height of a rectangular wave guide, the maximum power handling capability Pmax for TE10 mode is
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
At frequencies of 10 MHz and higher the impedance represented by ground is primarity
resistive
inductive
capacitive
partly resistive and partly capacitive
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
A disadvantage of microstrip line as the connections of compared to strip line is that former
do not lend themselves to printed circuit
are more likely to radiate
are bulky
are more expensive and complex
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.
As frequency increases, the transmission efficiency
decreases
increases
is not affected
either (a) or (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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