Download GTU BE/B.Tech 2019 Winter 7th Sem New 2171001 Microwave Engineering Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 7th Sem New 2171001 Microwave Engineering Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ? VII (New) EXAMINATION ? WINTER 2019
Subject Code: 2171001 Date: 23/11/2019

Subject Name: Microwave Engineering
Time: 10:30 AM TO 01:00 PM Total Marks: 70

Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.


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

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
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
(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
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
(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
(c) Discuss the basic three laws for satellite communication systems. 07


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