Enrolment No.
BE - SEMESTER- VII (New) EXAMINATION — WINTER 2019
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Subject Code: 2171001 Date: 23/11/2019
Subject Name: Microwave Engineering
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
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Q.1 (a) List microwave applications. [03]
(b) Discuss the merit and demerits of microwave signals. [04]
(c) What is S- parameter? Discuss the Properties of S- parameter and prove any one with necessary mathematical derivation. [07]
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Q.2 (a) Explain the setup of polar plot measurement of any microwave antenna. [03]
(b) Draw the block diagram of Network analyzer and discuss in brief. [04]
(c) Discuss the Radar systems and its applications [07]
OR
(c) Explain the Radiometer systems. [07]
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Q.3 (a) Define VSWR, Reflection Coefficient and Transmission Coefficient. [03]
(b) Compare the different micro strip lines. [04]
(c) Explain the double stub impedance matching technique with suitable example. [07]
OR
Q.3 (a) Plot the relation between reflection coefficient and VSWR. [03]
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(b) Explain the quarter wave transform for impedance matching application. [04]
(c) Explain the smith chart with necessary derivation. [07]
Q.4 (a) Derive the S matrix for 3 port circulator. [03]
(b) Explain Magic Tee with its applications. [04]
(c) Discuss reflex klystron with suitable diagrams. [07]
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OR
Q.4 (a) Explain Tunnel Diode with its applications. [03]
(b) Discuss in brief different type of microwave attenuators. [04]
(c) Discuss the Magnetron with its construction and applications. [07]
Q.5 (a) Explain in brief Microwave imaging. [03]
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(b) Discuss the effects of microwave on human body. [04]
(c) Discuss the techniques to measure the microwave antenna parameters. [07]
OR
Q.5 (a) Explain in brief EMI and EMC issue. [03]
(b) Discuss RF MEMS for microwave components. [04]
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(c) Discuss the basic three laws for satellite communication systems. [07]
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