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a. Starting from fundamental, derive the expression for the voltage and current at any point on the transmission line.

b. A transmission line has the following primary constants, R = 10.4 L = 0.00367 H/km, G=0.8 x 10^{-6} /km, C =0.00835 F/km. Find and z_{o}.

c. Define and derive expression for reflection coefficient and transmission coefficient for a transmission line.

a. A load of ZR-115-1752 terminates at a lossless 1000 line. Use Smith chart to determine:(i) SWR, (ii) I/P impedance of a 0.2 long line, (ii) the distance from load to first voltage maximum.

b. With neat diagram, explain Faraday's rotation isolator.

c. With diagram, explain working of two hole direction coupler and also derive s-matrix for the same.

a. Explain with a neat diagram the construction and working of PIN diode and Schottkey barrier diode.

b. An M-SI-M BARITT diode has the following parameter:

i) Relative dielectric constant of silicon g_{r} = 11.8

ii) Donor concentration, N = 2.8 x 10^{21}/m

iii) Silicon length, L =6

Determine the breakdown voltage and the breakdown electric field.

c. What is Gunn'effect? Explain with constructional details of a Gunn diode.

b. State and explain properties of S-parameters.

c. Two transmission lines of characteristic impedance z_{1} and Z_{2} are joined at plane pp^{1}.Express s-parameter in terms of impedance.

a. With neat diagram, explain the working of rotary precision phase shifter.

b. Explain H-plane Tee junction and derive the S-matrix also.

c. A 20 MW signal is fed into one of collinear port 1 of a lossless H-plane T-junction.Calculate power delivered through each port when other ports are terminated in matched load.

4. Explain the various losses taking place in microstriplines,

b. Explain the construction and field pattern for microstripline.

c. Compare stripline and microstripline.

a. Derive Radar range equation in terms of effective aperture, radar cross section of target and minimum detectable signal power of receivers.

b. Discuss various application of Radar.

c. With respect to Radar system, explain:

i) Maximum unambiguous Range

With respect to Radar system, explain:

ii) Clutter attenuationc.

iii) Improvement factor

iv) Doppler shift

a. Explain MTI Radar with neat block diagram

Write short notes on

ii) C.W. Doppler Radarb.

iii) Pulsed Radar

iv) Blind speed

b. Write short notes on any two:

i) Delay line canceller

Derive the following loss in a microwave network in terms of S-parameter:

i) Insertion loss

ii) Transmission loss

iii) Reflection loss

iv) Return loss

Ipjugaad