# PTU B.Tech Electrical Engineering 6th Semester May 2019 72843 MICROWAVE AND RADAR ENGINEERING Question Papers

PTU Punjab Technical University B-Tech May 2019 Question Papers 6th Semester Electrical and Electronics Engineering (EEE)-EE-Electrical Engineering

Roll No.
Total No. of Pages : 02
Total No. of Questions : 09
B.Tech (Electronics Engineering) (E1 2012 Onwards) (Sem.?6)
Subject Code : BTEEE-603B
M.Code : 72843
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
1.
SECTION-A is COMPULSORY consisting of TEN questions carrying T WO marks
each.
2.
SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3.
SECTION-C contains T HREE questions carrying T EN marks each and students
have to attempt any T WO questions.

SECTION-A
1.

a) What do you understand by Doppler shift?

b) Write short note on SWR.

c) Explain vertical scanning technique.

d) Define calorimeter with example.

e) Write a short note on PIN diode.

f) Define attenuators.

g) Explain collapsing loss.

h) How can we eradicate blind speed?

i) Define cavity resonator.

1 | M-72843

(S2)-680

SECTION-B
Q2.
With a neat sketch, explain the TRAPATT diode and draw its characteristics.

Q3.
Explain construction and working of precision rotary type phase shifter, with neat
diagram.

Q4.
Explain the principle and working of MT1 radar with the help of block diagram.
Q5.
With a neat block diagram, explain the working principle of CW radar.

Q6.
What are S- parameters? Explain the S- parameters for two port network.

SECTION-C
Q7.

b) With a neat diagram, explain the operation of microwave attenuator.

Q8.
Discuss in detail about the Doppler tracking systems.

Q9.
Derive the radar range equation and explain the factors influencing the maximum range

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