List out the similarities and dissimilarities of microwave transmission lines and waveguides.
[3 marks]Draw rectangular and circular waveguides and discuss their benefits as well as drawbacks.
[4 marks]Define microwaves. In which frequency bands microwave communication work? Discuss various applications of microwave communication in different domains.
[7 marks]Explain in brief what TE, TM and TEM modes are in a rectangular waveguide.
[3 marks]Discuss and Compare the differences between Strip lines and Microstrip lines and enlist the benefits of Microstip lines in brief.
[4 marks]What is a dominant mode in a rectangular waveguide? Derive field equations of TE mode for rectangular waveguide.
[7 marks]What is reflection coefficient in a transmission line? Why do we need scattering parameter in a waveguide? Discuss scattering matrix and list various properties of S-parameter.
[7 marks]What are faraday rotation devices? How such a device can work as a duplexer?
[3 marks]What is a Hybrid Tee? Enlist its applications. Describe how it can be able to measure impedance on any unknown microwave device.
[4 marks]What is the basic difference between two cavity klystron amplifier and klystron oscillator in construction? Discuss klystron oscillator with apple gate diagram and its applications in brief.
[7 marks]Discuss fixed and variable attenuators with their applications in brief.
[3 marks]Discuss Isolation and Coupling, Isolation and Directivity factors in connection with Directional Coupler.
[4 marks]What are favorable electrons? Draw cavity magnetron and explain its working with clear diagrams for π-mode and phase focusing effect.
[7 marks]What is avalanche transit time effect? Explain basic construction and operation of TRAPATT device.
[3 marks]Describe in brief the operation of microwave power amplifier with their applications.
[4 marks]Discuss the effect of microwave radiation on a human body. What are the sources of EMI? Discuss Intra and Inter system EMI with some relevant examples. OR1
[7 marks]Discuss construction and V-Icharacteristics of a Gunn Diode.
[3 marks]What is a Low Noise Amplifier (LNA)? How is it designed? What is its role in microwave communication?
[4 marks]How to prevent EMI? What is the role of Electromagnetic Compatibility? Discuss various standards of it.
[7 marks]Discuss microwave imaging with some practical applications.
[3 marks]How can we design a microwave oscillator? Where is it applicable for practical usage?
[4 marks]Draw a basic block diagram of spectrum analyzer. Discuss in brief about its operation with explanation on how a spectral measurement is conducted through it.
[7 marks]What are MMICs? Provide some examples of such ICs.
[3 marks]Which antennas are popular for various microwave applications? List them. Briefly discuss planner antenna.
[4 marks]How can we measure microwave frequencies using frequency meter and slotted line section? Explain both the methods with relevant block diagrams and valid explanations.
[7 marks]