Question Bank 1
Subject: Microwave and RADAR
Department: Electronics and Telecommunication Engineering
Course Outcomes (COs)
a Use specified waveguide in microwave communication
b Maintain passive microwave components and devices
c Maintain active microwave components and devices
d Interpret RADAR based systems for range detection
e Maintain various types of RADAR systems for the specified application
Chapter 1
Sr. Question Marks CO
No. Covered
Q1 State two advantages and two applications of circular waveguide [4] a
Q2. Draw field pattern of TE10 TE20, TE11 mode in rectangular [2] a, b
waveguide
Q3. Compare waveguide and two wire transmission line (Six Points) [4] a
Q4. A rectangular waveguide is 5 cm by 2.5 cm. Calculate the cut-off [2] a
frequency of dominant mode
Q5. Explain the concept of dominant mode in waveguide [4] a, b
Q6. Define the terms w. r. t. waveguide [4] a
i) Cut-off frequency of a waveguide ii) Guide wavelength
Q7. What is waveguide? With neat sketch explain its operation [4] a
Q8. Differentiate between circular and rectangular waveguide [4] a, b
Q9. State advantages and applications of circular waveguide [4] a
Q10. Describe Propagation of waves in rectangular waveguides [2] a
Q11 State applications of microwave in various fields [4] a
Q12 Describe TE, TM, and TEM modes [4] a
Chapter 2
Sr. Question Marks CO
No. Covered
Q1 State function of following waveguide components [4] b
i) Isolator ii) Circulator
Q2. Draw and describe the working of E-plane tee [4] b
Q3. Draw and describe the working of H-plane tee [4] b
Q4. Draw and describe the working of E-H-plane tee [4] b
Q5. State applications of E-H Plan Tee [2] b
Q6. State applications of circulator [2] b
Q7. Distinguish microwave circulator and isolator with following [4] a, b
parameters
1) Function 2) Construction 3) Application 4) Number of ports
Q8. Draw diagram of twists and corners. State its applications. [4] b
Q9. Draw and Explain directional coupler in detail [4] b
Q10. Define the following with respect to directional coupler [4] b
1) Coupling factor 2) Directivity
Q11 State applications of directional coupler [2] b
Q12 State applications of isolator [2] b
Q13 Explain principle of Gyrator and Rat race ring [4] b
