Q.

Antennas having a constant pattern in the azimuthal plane are called                            

A. high gain antenna
B. omni directional antenna
C. unidirectional antenna
D. low gain antenna
Answer» B. omni directional antenna
Explanation: omni directional antennas radiate em waves in all direction. if the radiation pattern for this type of antenna is plotted, the pattern is a constant signifying that the radiated power is constant measured at any point around the antenna.
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