Science Fair Project Encyclopedia
Directional antenna
A directional antenna is an antenna which transmits or receives maximum power in a particular direction.
All practical antennas are at least somewhat directional, although usually only the direction in the plane parallel to the earth is considered, and practical antennas can easily be omnidirectional in one plane.
One of the most common type is the yagi antenna
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