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Which of the following antenna is a combination of pillbox and parabolic cylinder?

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Which of the following antenna is a combination of pillbox and parabolic cylinder?

(a) Cheese antenna

(b) Orange peel antenna

(c) Corner antenna

(d) Cassegrain

I got this question in an international level competition.

This key question is from Application of Parabolic Reflector in chapter Reflector Antenna of Antennas

1 Answer

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Best answer
Right choice is (a) Cheese antenna

Explanation: A pillbox alone sometimes is called as a Cheese antenna as it is made from the parabolic cylinder. It is a thin slice of the parabolic cylinder cross-section covered with plates. Orange peel antenna consists of array of feeds and is C shaped. Cassegrain is a dual reflector antenna. Corner antenna is made from joining two plane sheet reflectors.

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