EC2403 RF and Microwave Engineering Important Questions

1. A shunt impedance Z is connected across a transmission line with characteristic impedance Zo

.Find the s matrix of the junction

2. Explain in detail about properties of S parameters

3. Explain about the operation ,characteristics and application of BJT’s at microwave frequency

4. What are transmission matrices?explain them and obtain their relationship s matrix

5. Expalin about microstripline matching networks with a neat diagram

6. Discuss the consideration for an RF amplifier design

7. Derive the reflection coefficients of simultaneous conjugate method for a bilateral design

8. Describe the frequency response of impedance matching networks used in an RF amplifier

9. Derive the reflection coefficients of simultaneous conjugate method for a bilateral design

10. Derive the S-matrix of a lossless, ideal magic tee

11. Describe the principle of microwave transmission through ferrite .Explain how a gyrator is

designed based on this effect

12. Describe the operation of a Isolator

13. Derive the s matrix of an ideal Phase shifter and discuss its operation

14. Derive the Manley Rowe power relation. Show how it can be applied to find the gain of up

converter and down converter

15. Explain the construction and DC operating principle of IMPATT diode

16. 16.Describe the principal of operation, the cases of input resistance at signal frequency and

the circuit performance of parametric amplifier

17. Explain in detail with suitable diagrams the fabrication techniques of a monolithic microwave

integrated circuit

18. Explain the working of Reflex Klystron , while doing so, explain the concept of velocity and

current modulations

19. Explain the operation of 2-cavity klystron amplifier and compare it with TWT

20. Draw the block diagram for the slotted line method of VSWR measurement and discuss

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