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Home ‣ Electronics and Communication Engineering ‣ Microwave Communication Comments
  • Question

  • In microstrip line has dielectric material most commonly used is


  • Options
  • A. silicon
  • B. rubber
  • C. plastic
  • D. bakelite

  • Correct Answer
  • silicon 

    • Microwave Communication problems

    Search Results

    • 1. The manufacturing technique used to manufacture strip type transmission line is

    • Options
    • A. photoetching technique
    • B. oxidation technique
    • C. cladding
    • D. epitaxial
      • Discuss
    • 2. Performance of a PIN diode switch is represented by

    • Options
    • A. insertion loss when switch is off
    • B. insertion loss when switch is on
    • C. insertion loss when switch is on and isolation loss when switch is off
    • D. insertion loss when switch is off and isolation loss when switch is on
      • Discuss
    • 3. Microwaves

    • Options
    • A. get reflected by ionosphere
    • B. are absorbed by ionosphere
    • C. are neither reflected nor absorbed by ionosphere
    • D. are both reflected and absorbed by ionosphere
      • Discuss
    • 4. In a TWT the phase velocity of the axial component of the field on the slow wave structure is kept

    • Options
    • A. equal to velocity of electron
    • B. slightly less than velocity of electron
    • C. slightly more than velocity of electron
    • D. equal to velocity of light in free space
      • Discuss
    • 5. At millimeter wavelength the favoured mode in circular wave guide is

    • Options
    • A. TE01
    • B. TE11
    • C. TE20
    • D. TE21
      • Discuss
    • 6. In the given figure power meters at A and B indicate 1 mW and 110 ?W respectively. VSWR of line is

    • Options
    • A. 1.5
    • B. 2
    • C. 2.5
    • D. 3
      • Discuss
    • 7. The earliest uses of electromagnetic waves were

    • Options
    • A. point to point communication
    • B. radar
    • C. both (a) and (b)
    • D. neither (a) nor (b)
      • Discuss
    • 8. An electromagnetic wave can be completely guided by a dielectric rod or slab.

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. In fibre optics the use is made of thin glass fibres for efficient transmission of light.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. Klystron amplifier is not used to amplifier very weak microwave signals due to

    • Options
    • A. low gain for weak signals
    • B. low noise for weak signals
    • C. high noise
    • D. both (a) and (b)
      • Discuss

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