B.TECH.
THEORY EXAMINATION (SEM–VIII) 2016-17
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MICROWAVE & RADAR
Time: 3 Hours
Max. Marks : 100
Note: Be precise in your answer. In case of numerical problem assume data wherever not provided.
SECTION – A
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- Explain the following: 10 x 2 = 20
- Define directional coupler.
- What is quality factor in microwave resonator?
- Define VSWR in microwave .
- Define impedance attenuator.
- Define term slotted lines.
- What is Hybrid ring in microwave?
- What are the name of microwave semiconductor diode?
- What is mean by radar?
- What is radar clutter?
- What is noise figure in radar?
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SECTION – B
- Attempt any five parts of the following questions: 5 x 10 = 50
- Explain the construction and working of Directional Coupler
- Derive the radar range equation.
- Explain limitation of conventional active devices at microwave frequency.
- Derive the solution of wave equation in rectangular co ordinates for TE degenerate mode.
- Explain the Gunn diode in detail
- Explain the varactor diode in detail.
- Explain the moving target radar with its application.
- What are Avalanche transient time devices?
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SECTION - C
Attempt any two parts of the following questions: 2 x 15 = 30
- Explain the Impatt and Trapatt diode in detail.
- Write the short note of following
- TWT
- Klystron
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- Explain the E-plane, H plane tree in microwave component.
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