Download PTU B.Tech 2020 March ECE 6th Sem BTEC 601 Microwave And Radar Engineering Question Paper

Download PTU (I.K. Gujral Punjab Technical University Jalandhar (IKGPTU) ) BE/BTech ECE (Electronics And Communications Engineering) 2020 March 6th Sem BTEC 601 Microwave And Radar Engineering Previous Question Paper

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Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Tech.(ECE) (2012 to 2017) (Sem.?6)
MICROWAVE AND RADAR ENGINEERING
Subject Code : BTEC-601
M.Code : 71121
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.

SECTION-A
1. Answer briefly :
a) What is crossed field amplifier?
b) What is velocity modulation?
c) What is IMPATT?
d) What is the need of bends in microwave?
e) What is SWR and its value at matched load?
f) Differentiate between TED and microwave diodes.
g) Draw the general set up of microwave measurement.
h) Why reflex klystron is used in laboratories?
i) What is phase shifter?
j) Define microwave band.
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1 | M - 7 1 1 2 1 ( S 2 ) - 1 7 9 4
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Tech.(ECE) (2012 to 2017) (Sem.?6)
MICROWAVE AND RADAR ENGINEERING
Subject Code : BTEC-601
M.Code : 71121
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.

SECTION-A
1. Answer briefly :
a) What is crossed field amplifier?
b) What is velocity modulation?
c) What is IMPATT?
d) What is the need of bends in microwave?
e) What is SWR and its value at matched load?
f) Differentiate between TED and microwave diodes.
g) Draw the general set up of microwave measurement.
h) Why reflex klystron is used in laboratories?
i) What is phase shifter?
j) Define microwave band.
2 | M - 7 1 1 2 1 ( S 2 ) - 1 7 9 4
SECTION-B
2. How wavelength can be measured using microwave set up?
3. Explain working of Tunnel diode.
4. How Microwave Bridge works?
5. Explain the double minimum method for measurement of SWR.
6. A two cavity klystron amplifier has following characteristics
Voltage gain = 15 dB
Input power = 5 mW
R
Sh
of input cavity = 30 k ?
R
sh
of output cavity = 40 k ?
R
L
= 40 k ?
Find : a) The input rms voltage b) output rms voltage

SECTION-C
7. Compare 2-cavity klystron and reflex klystron w.r.t their working and construction.
8. Explain working of E-plane Tee and H-plane Tee (with neat and clean diagram). Also
solve s-matrix for the same.
9. Write note on :
a) CW Radar
b) MTI Radar
NOTE : Disclosure of identity by writing mobile number or making passing request on any
page of Answer sheet will lead to UMC against the Student.

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