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Which of the following statements is false for a corner reflector antenna?

(a) Increases directivity in the forward direction

(b) Back radiation is not reduced compare to the plane reflector

(c) System efficiency depends on spacing between reflector vertex and the feed

(d) Angle between the reflecting plates is called included angle

This question was posed to me in semester exam.

This is a very interesting question from Corner Reflector topic in section Reflector Antenna of Antennas

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Correct option is (b) Back radiation is not reduced compare to the plane reflector

Explanation: Compared to the plane reflector antenna, back and side radiations are reduced in the corner reflector. A corner reflector consists of two plane reflectors joined at a corner to allow radiation in forward direction only. As the included angle decreases, spacing will increases.

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