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EndsemMay 20242019 patternBE E&TC

Radiation & Microwave Theory (RMT) SPPU Endsem Question Paper May 2024

All 8 questions from this SPPU endsem paper, as printed. Read them here or open the PDF.

Open the PDFMost repeated RMT questions
Subject code
404181
Pattern
2019 pattern
Exam
Endsem
Session
May 2024
Max. marks
70
Time
2½ Hours
Semester
VII
Paper code
[6263]-124

Printed for: B.E. (E & TC)

Instructions to the candidates

  1. Answer Q. 1 or Q. 2, Q. 3 or Q. 4, Q. 5 or Q.6, Q. 7 or Q. 8.
  2. Neat diagrams must be drawn wherever necessary.
  3. Figures to the right carries full marks.
  4. Assume suitable data, if necessary.

Questions

  1. Q1

    1. a)

      State the properties of S - matrix and derive S matrix for E plane Tee.

      Also asked:Nov 2023

      [6]
    2. b)

      With neat schematic diagram explain the operation of Gyrator. Also State S - matrix for it.

      Also asked:May 2023

      [6]
    3. c)

      A signal of power 40 mW is fed into the collinear ports of lossless H - Plane tee. Determine the powers in the remaining ports when other ports are terminated with matched impedance.

      [6]

  2. Q2

    1. a)

      Draw and explain two - hole directional coupler with neat diagram. Also state its S - matrix.

      Also asked:Nov 2025 ·May 2025 ·Nov 2023 ·May 2023 ·Nov 2022

      [6]
    2. b)

      Explain in brief the working principle of an Isolator.

      [6]
    3. c)

      An Isolator has an insertion loss of 0.5db and an isolation of 30 dB. Determine the Scatting matrix of the isolator if the isolated ports are perfectly matched to the junction.

      Also asked:Nov 2023 ·May 2023

      [6]

  3. Q3

    1. a)

      Explain the constrction of single Cavity klystron Tube.

      Also asked:Nov 2025 ·May 2023

      [6]
    2. b)

      Explain the Cavity Magnetron with Hull cut off condition in detail.

      Also asked:May 2023

      [6]
    3. c)

      What are the limitation of conventional tubes at microwave frequencies?

      Also asked:Nov 2023 ·May 2023 ·Nov 2022

      [6]

  4. Q4

    1. a)

      Explain the phase focusing effect in cavity magnetron.

      Also asked:Nov 2023 ·May 2023 ·Nov 2022

      [6]
    2. b)

      Explain construction, operation of Two Cavity Klystron.

      Also asked:Nov 2025 ·Nov 2024 ·Nov 2023 ·May 2023

      [6]
    3. c)

      Distinguish between TWTA and Klystron Tube. 2

      Also asked:Nov 2023 ·May 2023

      [6]

  5. Q5

    1. a)

      Explain construction and working of PIN diode.

      Also asked:Nov 2025 ·Nov 2024 ·Nov 2023 ·May 2023 ·Nov 2022

      [6]
    2. b)

      Write a short note on IMPATT diode.

      [6]
    3. c)

      Write the comparison between PN junction diode and Schottky diode.

      Also asked:May 2023

      [5]

  6. Q6

    1. a)

      Explain the working principle of Varactor diode.

      Also asked:Nov 2025 ·Nov 2024 ·Nov 2023 ·May 2023 ·Nov 2022

      [6]
    2. b)

      Explain construction and working of Schottky barrier diode.

      Also asked:Nov 2024 ·May 2023

      [6]
    3. c)

      Explain Gunn effect using two valley theory.

      Also asked:May 2023

      [5]

  7. Q7

    1. a)

      Explain the phase shift measurement using double minimum method at microwave frequency.

      Also asked:May 2023

      [6]
    2. b)

      This part has equations that don’t show as text. Open the PDF to read it.

      [6]
    3. c)

      Write short note on effect of Microwave radiation on human.

      Also asked:May 2023

      [5]

  8. Q8

    1. a)

      Write a note on measurement of quality factor.

      Also asked:May 2023

      [6]
    2. b)

      Explain reflectometer method for measurement of impedance.

      Also asked:Nov 2023

      [6]
    3. c)

      This part has equations that don’t show as text. Open the PDF to read it.

      [5]