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Old December 13th 07, 10:27 PM posted to rec.radio.amateur.antenna
Cecil Moore[_2_] Cecil Moore[_2_] is offline
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First recorded activity by RadioBanter: Mar 2007
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Default Standing Wave Phase

Cecil Moore wrote:
David Ryeburn wrote:
However, loaded mobile antennas presumably radiate, at least a little,
and my analysis (and W5DXP's discussion of angle lengths of
transmission lines and "phase shift" at their junction) is for
*LOSSLESS* transmission lines. This makes me wonder.


The current conditions for a mobile antenna can be simulated
by a lossy transmission line made out of resistance wire.
The equations simply include the losses.


The energy content of a 1/2WL dipole is only about 20%
radiated which means that 80% of the energy doesn't
radiate, quite like a lossy transmission line.
--
73, Cecil http://www.w5dxp.com