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MCQ Practice Question
Antenna & Wave PropagationAperture & Gain

For an aperture antenna, increasing the effective aperture while wavelength is fixed generally causes gain to?

  • AIncrease
  • BDecrease
  • CRemain exactly constant
  • DBecome zero
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Correct Answer: A. Increase
Explanation: Gain and effective aperture satisfy Ae=G lambda²/(4pi), so at fixed wavelength larger effective aperture means larger gain.
Reference: Standard antenna and wave propagation: aperture & gain
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