Science Fair Project Encyclopedia
Null fill
Null fill is used in radio antenna systems which are located on mountains or tall towers, to prevent too much of the signal from overshooting the intended coverage area. Phasing is used between antenna elements to take power away from the main lobe and electrically direct more of it downward.
See also: beam tilt.
Last updated: 08-25-2005 13:46:27
10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details