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InsemOct 20222019 patternBE E&TC

Radiation & Microwave Theory (RMT) SPPU Insem Question Paper Oct 2022

All 4 questions from this SPPU insem paper, as printed. Read them here or open the PDF.

Subject code
404181
Pattern
2019 pattern
Exam
Insem
Session
Oct 2022
Max. marks
30
Time
1 Hour
Semester
VII
Paper code
Oct-22/BE/Insem-90

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

Instructions to the candidates

  1. Answer Q. 1 or Q. 2 and Q.3 and Q.4.
  2. Draw neat diagrams wherever necessary.
  3. Figurs to the right side indicate full marks.

Questions

  1. Q1

    1. a)

      Calculate the power density reaching the moon’s surface from 1MW pulse transmitter located on the earth. The antenna gain is 55 db. The distance between the moon and earth 4,00,000 km.

      [4]
    2. b)

      Explain the following characteristics of antenna in detail : i) Radiation Pattern ii) Efficiency

      Also asked:Sep 2023

      [5]
    3. c)

      Explain the details the radiation mechanism of antenna with suitable diagram.

      Also asked:Aug 2025 ·Sep 2023

      [6]
  2. Q2

    1. a)

      Derive the fundamental equation for free space propagation.

      Also asked:Sep 2023

      [4]
    2. b)

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

      [5]
    3. c)

      Enlist the different types of antennas. Explain any two types in detail. 2 Oct-22/BE/Insem-90

      [6]
  3. Q3

    1. a)

      Give the comparison between co-axial cable and waveguide.

      Also asked:Aug 2025 ·Sep 2023

      [4]
    2. b)

      What are micro waves. Enlighten on advantages and applications of microwave.

      Also asked:Sep 2023

      [5]
    3. c)

      What is cavity resonator. Explain re-entrant type of cavity resonator.

      Also asked:Sep 2023

      [6]
  4. Q4

    1. a)

      Give the comparison between TE Mode and TM Mode.

      [4]
    2. b)

      Explain the Structural details, types and applications of Striplines.

      Also asked:Sep 2023

      [5]
    3. c)

      An air-filled rectangular waveguide of dimension 8×4cm operates in the dominant TE 10 mode. Find : i) The cut off frequency ii) Phase velocity at operating frequency of 3.5 GHz and iii) Guide Wavelength 

      [6]