| Definition: | the ratio, generally expressed in decibels, of the radiation intensity produced by an antenna in a given direction, to the value of the radiation intensities averaged in all directions in space
NOTE 1 – If no direction is specified, the direction of maximum radiation intensity from the given antenna is implied.
NOTE 2 – The directivity is independent of antenna losses and equal to the absolute gain in the same direction if the antenna is lossless.
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