STUPIDSID
1 (a)
What are the types of distortion present on a transmission line? Starting from
derivation of α and β ,derive the condition for distortionless transmission.
7 M
1 (b)
A 75Ω transmission line is terminated in a load of ( 150 + j 225 Ω Design a suitable
stub line to match the load to the line. The operting frequency is 500 Mhz. Use Smith chart for solving the problem.
7 M
2 (a)
Explain TE , TM and TEM modes in a waveguide. What is meant by the Dominant mode in a rectangular waveguide? Explain why TEM mode can not propagate through
a rectangular waveguide.
7 M
2 (b)
(1) Explain the terms : Cut off wavelength (λc) , Guide wavelength (λg) and free space wavelength (λo). What is the relationship between them?
7 M
2 (c)
Describe the construction and working of Magic Tee.What are its applications?
Explain any one application in detail.
7 M
3 (a)
Describe the problems associated with conventional tubes at UHF and Microwave?
7 M
3 (b)
Explain the construction and working of Magnetron tube. What are its applications?
7 M
3 (c)
Explain the construction and working of Two cavity Klystron. What are its
applications? What will happen when additional cavities are inserted between the buncher and catcher cavities?
7 M
3 (d)
What is Faraday's rotation principle? Explain the working of Faraday's rotation
isolator. What are its applications?
7 M
4 (a)
Explain the basic principle of Parametric amplifier. Explain degenerate and non
degenerate mode. What are its applications?
7 M
4 (b)
What is Tunneling effect? Explain the construction and working of Tunnel diode.
What are the applications of Tunnel diode?.
7 M
4 (c)
Explain the construction and working of IMPATT diode. What are its applications?
7 M
4 (d)
Explain Calory meter method of measuring Medium and High microwave power.
7 M
5 (a)
What is a Doppler effect? Draw and explain the block diagram of MTI radar.
7 M
5 (b)
Write a note on Directional coupler and its applications. Explain the terms Coupling
factor and Directivity.
7 M
5 (c)
Explain the principle of Radar. Derive the equation of the range of Radar. Discuss the parameters which affect the range of Radar.
7 M
5 (d)
Write a note on any one of the following.
(1) Step Recovery Diode and its applications.
(2) λ/4 Line and its applications.
(1) Step Recovery Diode and its applications.
(2) λ/4 Line and its applications.
7 M
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