ETC EngineeringMCQs
Home › Antenna & Wave Propagation › The approximate gain of a parabolic reflector is proportional to?
MCQ Practice Question
Antenna & Wave PropagationParabolic Reflector

The approximate gain of a parabolic reflector is proportional to?

  • A(D/lambda)² times aperture efficiency
  • BD/lambda only
  • Clambda²/D
  • DD²lambda² only
Report an error
Correct Answer: A. (D/lambda)² times aperture efficiency
Explanation: A common reflector relation is G≈eta_a(pi D/lambda)², so gain scales with (D/lambda)² for fixed efficiency.
Reference: Standard antenna and wave propagation: parabolic reflector
Continue practicing: Antenna & Wave Propagation MCQs or browse all MCQs.