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20-11-2021 Microwave Engineering

Q. If an antenna has a directivity of 16 and radiation efficiency of 0.9, then the gain of the antenna is:

A. 16.2
B. 14.8
C. 12.5
D. 19.3

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Dapzoi Verified
Commented on 2021-11-20 11:56:22 (IST)
Answer: A

Explanation: Gain of an antenna is given by the product of radiation efficiency of the antenna and the directivity of the antenna. Product of directivity and efficiency thus gives the gain of the antenna to be 16.2.