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Its all gone quiet. Let's stir it up again.
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March 11th 04, 06:22 PM
Richard Clark
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On Thu, 11 Mar 2004 08:38:07 -0600 (CST),
(Richard Harrison) wrote:
Seems to me the old wife quoted above is right. Radiation from a dipole
is concentrated in a doughnut pattern around the middle of the wire.
Hi Richard,
This is from an infinite perspective where all contributions of
radiation sum to form the shape you describe. If you were actually
sitting at the middle of that "doughnut" you would see a pattern more
like three poached eggs bigger than the size of the structure.
Examples of near field patterns (evidenced through their imposition of
a Z other than 377 Ohms upon the vicinity of the antenna) may be
observed at:
http://home.comcast.net/~kb7qhc/ante...elds/index.htm
with:
http://home.comcast.net/~kb7qhc/ante...pole/index.htm
showing a distinct activity at BOTH the middle AND at the ends.
73's
Richard Clark, KB7QHC
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