Electronics and Communication Engineering - Microwave Communication
Exercise :: Microwave Communication - Section 6
| 1. |
Which one of the following is also called 'rat race'? |
| A. |
E plane tee | | B. |
H plane tee | | C. |
Magic tee | | D. |
Hybrid ring |
Answer: Option D
Explanation:
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| 2. |
Radar principle is used in |
| A. |
detection of aircraft | | B. |
burglar alarms | | C. |
garage door openers | | D. |
all of the above |
Answer: Option D
Explanation:
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| 3. |
In an optional fiber the refractive index of cladding material should be |
| A. |
nearly 1 | | B. |
very low | | C. |
less than that of core | | D. |
more than that of core |
Answer: Option C
Explanation:
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| 4. |
In microwave circuits, a mode transducer is used to |
| A. |
change mode of wave transmission | | B. |
change direction of wave transmission | | C. |
change polarization of wave transmission | | D. |
change mode, direction or polarization wave transmission |
Answer: Option D
Explanation:
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| 5. |
A waveguide connected to a circularly polarized antenna must be able to efficiently propagate both vertically and horizontally polarised waves. |
Answer: Option A
Explanation:
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