The radiation pattern of an antenna in spherical co-ordinates is given byF(Î¸

Question

The radiation pattern of an antenna in spherical co-ordinates is given byF(Î¸) = cos4 Î¸; 0 â‰¤ Î¸ â‰¤ Ï€ /2The directivity of the antenna is

Options:

A . 10 dB

B . 12.6 dB

C . 11.5 dB

D . 18 dB

Answer: Option B

-NA-

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