InterviewSolution
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InterviewSolution
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Which of the following statements is false about Array-fed antenna?(a) It is widely used to create a downlink radiation in satellite communication(b) An array of feed horns are clustered at focal point to produce arbitrary shaped beam(c) It uses only a single horn feed and a multiple array of passive reflectors(d) It can also be used with secondary reflector antennasThe question was asked in an international level competition.I want to ask this question from Application of Parabolic Reflector topic in division Reflector Antenna of Antennas |
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Answer» CORRECT choice is (c) It uses only a SINGLE horn feed and a multiple array of passive reflectors The explanation: Array-fed antenna uses a cluster of horn feeds instead of a single horn to produce an arbitrary beam. It is mainly used in direct satellite COMMUNICATION for downlink radiation. It is also used with SECONDARY reflectors LIKE Cassegrain. |
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