top-loaded vertical antenna

top-loaded vertical antenna

[¦täp ¦lōd·əd ′vərd·ə·kəl an′ten·ə]
(electromagnetism)
Vertical antenna constructed so that, because of its greater size at the top, there results modified current distribution, giving a more desirable radiation pattern in the vertical plane.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.