Seat No.: Enrolment
GUJARAT TECHNOLOGICAL UNIVERSITY
PDDC SEMESTER-VII EXAMINATION WINTER 2018
Subject Code:X71101 Date: 15/11/2018
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
Give the advantages and applications of microwaves.


Explain smith chart in detail.

q.2
Derive equation of voltage and current relationships and characteristic impedance on a transmission line.


Give the advantages, disadvantages and applications of circular waveguides.

OR

Explain impedance matching in detail.

q.3
List the applications of Magic Tee and explain each in detail.


Derive Scattering Matrix for E-plane Tee.

OR
q.3
Design and explain a four port circulator.


List out the similarities and dissimilarities of waveguide with 2-wire transmission lines.

q.4
Write short note on varactor diode.


Discuss in detail two cavity klystron oscillator.

OR
q.4
Explain Isolator in detail.


Explain Parametric Amplifier in detail.

q.5
Explain the principle and working of MTI radar.


List the RADAR displays and explain each in brief.

OR
q.5
Give the applications of PIN diode and explain each in brief.


Explain Tunnel Diode in detail.