beam antenna

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beam antenna

[′bēm an′ten·ə]
(electromagnetism)
An antenna that concentrates its radiation into a narrow beam in a definite direction.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

beam antenna

beam antenna
A beam antenna for HF operation.
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.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved