Effective Aperture MCQs

Practice Effective Aperture MCQs with four options, answers and explanations for focused Electronics & Telecommunication Engineering revision.

Question 1

Antenna & Wave PropagationEffective Aperture

For a receiving antenna, effective aperture Ae and gain G are related by?

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Correct Answer: A. Ae = G lambda²/(4 pi)

Explanation: For a matched receiving antenna, effective aperture is related to gain by Ae=Gλ²/(4π).

Reference: Standard antenna and wave propagation: effective aperture

Question 2

Antenna & Wave PropagationEffective Aperture

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Correct Answer: C. 0.318 m²

Explanation: For G=1, Ae=λ²/(4π)=4/(4π)=1/π≈0.318 m².

Reference: Standard antenna and wave propagation: effective aperture