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- Question
Options- Correct Answer
- negative potential
ExplanationIt uses a single cavity resonator for generating microwave oscillations.Its parts are electron gun, resonator, repeller and output coupling.
It operates on the principle of positive feed back.
The repeller electrode is at negative potential and sends the partially bunched electron beam back to resonator cavity.
This positive feedback supports oscillations. Its feature are:
1. Frequency range - 2 to 100 GHz
2. Power output - 10 MW to about 2 W
3. Efficiency - 10 - 20 %
Its applications include radar receivers, local oscillator in microwave devices, oscillator for microwave measurements in laboratories etc.
More questions
- 2. In the given figure shows the equivalent circuit of a magic tee. If all ports are matched
Options
Discuss
Correct Answer: nE = nH = 2
- 3. Two identical hybrid tees are joined as shown in the given figure. If 16 mW power is fed into port 1, the power output at ports 2 , 3, 1', 2', 3' respectively is
Options
Discuss
Correct Answer: 0, 8, 4, 4, 0 mW
- 2. In the given figure shows the equivalent circuit of a magic tee. If all ports are matched
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