Electronics and Communication Engineering - Microwave Communication
Exercise :: Microwave Communication - Section 7
| 1. |
In terms of R, L, G and C the propagation constant γ of a transmission line is |
Answer: Option B
Explanation:
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| 2. |
The p mode of operation of magnetron signifies that |
| A. |
the phase difference between adjacent anode poles is p radians | | B. |
the phase difference between adjacent anode poles is a multiple of p radians | | C. |
the total phase shift around the periphery is p radians | | D. |
none of the above |
Answer: Option A
Explanation:
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| 3. |
Consider the following statements (L is the length of array between centres of end antennas and A is wave-length) - Width of major lobe between nulls of broad side array and end fire array are different.
- Directive gain of broadside array and end fire array are different.
- Directive gain of broadside array is 4
Which of the above statements are correct? |
| A. |
1, 2 and 3 | | B. |
1 and 2 only | | C. |
1 only | | D. |
1 and 3 only |
Answer: Option D
Explanation:
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| 4. |
The electrical requirement on wall thickness of rectangular wave guide is |
| A. |
wall thickness is more than skin depth | | B. |
wall thickness is less than skin depth | | C. |
wall thickness is equal to skin depth | | D. |
either (b) or (c) |
Answer: Option A
Explanation:
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| 5. |
If a microstrip is enclosed in a metal enclosure |
| A. |
the radiation losses are increased | | B. |
the radiation losses are reduced RL | | C. |
the capacitance becomes zero | | D. |
the inductance becomes zero |
Answer: Option B
Explanation:
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