STUPIDSID
1(a)
What are slow wave structures. Draw various structures and give the their significance?
5 M
1(b)
Explain any two modes of operation Gunn diodes with schematics.
5 M
1(c)
What is made jumping in magnetron. How is it taken care of?
5 M
1(d)
Explain the factors which govern the pulse repetition frequency in RADAR.
5 M
2(a)
The terminating impedance ZL=60-j80Ω. Design two single stub(short circuited) tuning network to match this load to a 50Ω line.
10 M
2(b)
What is need of termination in microwave systems? Explain any two types of terminations.
10 M
3(a)
What is Faraday rotation in ferrites. Explain working of isolator using Faraday rotation.
10 M
3(b)
How does gyrotron tube differ from klystron and magnetron tubes.Explain te principle of operation of gyro TWT amplifier.
10 M
4(a)
Explain the working of parametric amplifier and explain its applications.
10 M
4(b)
What do you understand by the term clutter. Explain the different types of RADAR clutter. Enumerate the properties of land and sea clutter.
10 M
5(a)
Derive an expression for RADAR range. Discuss effect of radar cross section on range determination.
10 M
5(b)
Explain the construction and working of TRAPATT diode.
10 M
6(a)
Design two lumped element L-section matching network at 1 Ghz to transform ZL=10-j10Ω to 50Ω transmission line.
10 M
6(b)
Write a short note on microwave FET.
5 M
6(c)
A radar operating at a wavelength of 0.03m has a maximum range of 50 km. Its antenna gain is 2000 and transmitter power is 250kW. Its minimum detectable signal is 10pW, then find the RCS of the target.
5 M
More question papers from Microwave & Radar Engineering