Antenna And Microwave Engineering- Revision Quiz

9 Questions | Total Attempts: 52

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Antenna And Microwave Engineering- Revision Quiz


Questions and Answers
  • 1. 
    The solid angle is measured in
    • A. 

      Steradian

    • B. 

      Radian

    • C. 

      Elevation angle

    • D. 

      Azimuthal angle

  • 2. 
    An antenna that just serves as a reference and is hypothetical is the [Blank] antenna
  • 3. 
    The region of the field of the antenna where the angular field distribution is independant of the distance is
    • A. 

      Reactive near field

    • B. 

      Far field

    • C. 

      Radiative near field

    • D. 

      Fresnel region

  • 4. 
    Directivity, Gain and Aperture are directly related...true or false?
    • A. 

      True

    • B. 

      False

  • 5. 
    The radiation resistance of a half wave dipole is
    • A. 

      74 ohms

    • B. 

      75 ohms

    • C. 

      73 ohms

    • D. 

      50 ohms

  • 6. 
    To find the field components of an antenna, the analysis should be started from the ----- of the radiation
    • A. 

      Point

    • B. 

      Vector potential

    • C. 

      Scalar potential

    • D. 

      Fields

  • 7. 
    The helical antenna is the hybrid of
    • A. 

      Dipole and loop antenna

    • B. 

      Spiral and dipole antenna

    • C. 

      Two half wave dipoles in the form of helix

    • D. 

      Spiral and loop antenna  

  • 8. 
    Which of the following feed techniques in the reflector antenna, avoids blockage
    • A. 

      Front

    • B. 

      Offset

    • C. 

      Cassegrain

    • D. 

      Offset cassegrain

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