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Reflector antenna operates on the Geometric optics principle?

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Reflector antenna operates on the Geometric optics principle?

(a) True

(b) False

This question was posed to me during an online interview.

My question comes from Basics in chapter Reflector Antenna of Antennas

1 Answer

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Right answer is (a) True

The best I can explain: Reflector antenna is high gain antenna and works on the principle of the Geometric optics. Geometrical optics shows that if a beam of parallel rays is incident on a reflector antenna whose geometrical shape is a parabola, then the array beams will converge at the focal point.

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