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Which of the following paraboloid reflector is formed by cutting some part of paraboloid to meet requirements?

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Which of the following paraboloid reflector is formed by cutting some part of paraboloid to meet requirements?

(a) Truncated paraboloid

(b) Cassegrain

(c) Corner

(d) Pill box

The question was posed to me in a national level competition.

The above asked question is from Parabolic Reflector Antenna topic in division Reflector Antenna of Antennas

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The correct option is (a) Truncated paraboloid

To elaborate: When a portion of the paraboloid reflector is cut off or truncated it is called as truncated paraboloid. Pill box provides wide beam in one plane and narrow beam in other plane. Cassegrain is a dual reflector antenna and Corner reflector is also a type of reflector antenna.

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