fanning beam

fanning beam

[′fan·iŋ ‚bēm]

(electromagnetism)

Narrow antenna beam which is repeatedly scanned over a limited arc.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

fanning beam

A radiant energy beam, such as a radar beam, which sweeps back and forth over a limited arc.

An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved