Electronics and Communication Engineering - Microwave Communication

56. 

The use of coaxial microwave line should be restricted to frequencies

A. below cut off frequency of TE11 mode
B. above cut off frequency of TE11 mode
C. at frequencies much lower than cut off frequency of TE11 mode
D. at frequencies much higher than cut off frequency of TE11 mode

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

57. 

Generally the wall thickness of rectangular waveguide is

A. about 1-5 mils
B. about 40-100 mils
C. about 0.1 to 0.5 mils
D. about 500 mils

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

58. 

If QL is loaded Q, QE is external Q and QU is unloaded Q of a microwave resonator, then

A.
B.
C.
D. QL = QE + QU

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

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