Microwave Engineering — Summer 2022

Characteristics impedance (vi) Transmission Co-efficient (vii) Impedance matching

Explain TEM, TE and TM Mode.

Explain advantages of microwave and its application. Also draw a diagram of microwave communication system.

Define the following:

Group velocity (ii) Phase velocity (iii) Degenerate mode (iv) Return loss

Explain the quarter wave transform for impedance matching application.

Derive transmission line equations and solution of transmission line equation.

Derive impedance transformation relationship, if known impedance at load point on transmission line is Zand unknown impedance at1 any other point on transmission line towards generator is Zat2 distance d from Z .1

What is standing wave? Derive the equation of voltage standing wave ratio in terms of reflection coefficient.

Derive the Smatrix for isolator.

What is VSWR for a) open circuit load b) short circuit load (Assume Z =50Ω).0

Explain the operation of magic TEE with its s-parameter.

List various microwave junction devices. Write the scattering matrix for Harm TEE.

Discuss the properties of S-parameter.

Explain in brief reflection coefficient. Also derive the expression for the reflection coefficient at load point.

List microwave antennas.

Explain role of spectrum analyzer in microwave measurements.

What is Gunn effect? Explain working of Gunn diode.

Give difference between two cavity klystron and reflex klystron.

Explain electromagnetic interference and microwave imaging.1

Explain working of reflex klystron.

Discuss RF MEMS for microwave components.

List applications and advantages of microwave solid state devices.

Explain Microwave Communication in Satellite System.

What are the problems associated to conventional tubes at microwave frequencies?

Write notes on medical and civil related application of microwave.

Describe Microwave RADAR system.