List the applications of microwaves and explain each briefly.
[7 marks]Define the following terms: 1) VSWR 2) Characteristics Impedance 3) Degenerate Mode
[3 marks]List the advantages of microwaves and explain each briefly.
[4 marks]Prove that the E-plane tee junction cannot be matched to all three arms simultaneously.
[7 marks]Why can the TEM mode not propagate through a hollow rectangular waveguide? Justify
[3 marks]What is the S-Matrix? List the properties of the S-matrix.
[4 marks]List the losses associated with microwave transmission and explain each briefly.
[7 marks]Write a short note on waveguide bands, corners, and twists.
[4 marks]What are the advantages of double stub impedance matching over the single stub impedance matching?
[3 marks]Write short-note on impedance matching using stub.
[4 marks]Compare rectangular and circular waveguide in detail.
[7 marks]Define the following terms: 1) Coupling factor 2) Directivity 3) Isolation
[3 marks]Atransmission line has the following parameters: R = 2 Ω/m, G = 0.5 mmho/m, L = 8 nH/m, C = 0.23 pF, and f = 1 GHz Calculate the characteristic Impedance and the propagation constant.
[7 marks]List the applications of magic tee and explain any two applications in details.
[7 marks]Why the vessels in microwave oven should be of dielectric material? Justify.
[3 marks]What are the problems associated with conventional tubes at microwave frequencies?
[4 marks]Why the slow wave structures are used in a travelling wave tubes?
[3 marks]List the applications of directional coupler and explain each in brief.
[4 marks]Explain the two cavity klystron in detail.1
[7 marks]What are the EMI and the EMC?
[3 marks]Describe how velocity modulation and current modulation take place in a klystron.
[4 marks]List the impedance measurement methods at microwave frequency and explain any one method in detail.
[7 marks]What is the microwave imaging?
[3 marks]Write a short-note on “effect of microwaves on human body”
[4 marks]Explain microwave radar system in detail.
[7 marks]