beam antenna(redirected from beam aerial)
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beam antenna[′bēm an′ten·ə]
An antenna that concentrates its radiation into a narrow beam in a definite direction.
A directional antenna that transmits its signals along a very narrow path. These antennae are advantageous both for transmitting and receiving. The forward gain enhances the range, and a good front-to-back ratio and narrow bandwidth aid in preventing interference to and from stations in the directions other than the desired stations.