ETC EngineeringMCQs
Home › Antenna & Wave Propagation › A parabolic dish has diameter 2 m, wavelength 0.1 m and aperture efficiency 0.6. Its approximate gain is?
MCQ Practice Question
Antenna & Wave PropagationParabolic Reflector

A parabolic dish has diameter 2 m, wavelength 0.1 m and aperture efficiency 0.6. Its approximate gain is?

  • A237
  • B592
  • C2369
  • D5922
Report an error
Correct Answer: C. 2369
Explanation: G≈0.6(pi×2/0.1)²=0.6(20pi)²≈2369, about 33.7 dBi.
Reference: Standard antenna and wave propagation: parabolic reflector
Continue practicing: Antenna & Wave Propagation MCQs or browse all MCQs.