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Electronics and Communication Engineering - Microwave Communication

Exercise : Microwave Communication - Section 8
21.
Compared to coaxial lines, the advantages of wave guides are
higher power handling capacity
lower loss per unit length
cheaper and simple mechanical structure
all of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
Standard mismatches are used to calibrate SWR and impedance measuring equipments.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
As compared to LED, LASER has
  1. higher emission efficiency
  2. no tuning arrangement
  3. narrow spectral width
  4. provision for confinement
Of these statements
1, 2, 3 are correct
1, 2, 4 are correct
1 and 3 are correct
1, 3, 4 are correct
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
Microwaves are used for
telephony
radio broadcast
TV systems
all of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
In a shield helix
the spacing between adjacent turns is very large
the spacing between adjacent turns approaches zero
the spacing between adjacent turns approaches zero and wire thickness approaches zero
the spacing between adjacent turns is very large wire thickness approaches zero
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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