B.TECH - Semester 7 microwave engineering Question Paper 2019 (jun)
Practice authentic previous year university questions for better exam preparation.
Sample Questions
- Explain velocity modulation in klystron.
- 703 : MICROWAVE ENGINEERING (T) (2008 Scheme) Time : 3 Hours Max. Marks 100 Answer all questions. Each question carries 4 marks.
- Derive the equation for convention current in Helix TWT.
- Reflex klystron operates under the following condition: $\mathrm{V}_{0}=600 \mathrm{~V} \mathrm{R}_{\mathrm{sh}}=15 \mathrm{k} \Omega$, $\mathrm{e} / \mathrm{m}=1.759 \times 10^{11} \cdot \mathrm{fr}=9 \mathrm{GHz}$. The tube is oscillating at fr at ...
- Briefly explain the physical structure and power frequency limitations of microwave bipolar transistors.
- Briefly explain the applications of PIN diode.
- Explain MESFET-VI characteristics and high frequency equivalent circuit.
- Explain the working of magic tees with diagram.
- Explain the working of hybrid rings with diagram.
- Explain the working of corners and twists with diagram.
- Explain repeaters used in FM microwave radio system. ( $\mathbf{1 0} \boldsymbol{\times} \mathbf{4} \boldsymbol{=} \mathbf{4 0}$ Marks) P.T.O. Answer any two questions from each module. Each question carries 10 marks.
- Derive the equation for resonant frequency of circular wave guide resonator.
- Explain the working of reflex klystron with diagram.
- Explain the working of TWT with its structure.
- Explain the principle of operation of Gunn diode oscillator and amplifier with diagram.
- Explain the working of tunnel diode with diagram.
- Explain the physical structure of hetero junction bipolar transistors and high frequency equivalent circuit.
- Explain the working of circulators and isolators with diagram.
- Explain diversity reception and protection switching arrangements used in microwave radio system.
- Explain FM microwave radio systee ( $6 \times 10=60$ Marks)