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Old April 30th 07, 03:01 AM posted to rec.radio.amateur.antenna
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First recorded activity by RadioBanter: Mar 2007
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Default Current in 1/2WL Dipoles

Gene Fuller wrote:
So soon we forget. In a standing wave antenna the phase is gone, kaput.
I believe you have even quoted me on occasion when it was convenient for
the purpose you had at the moment.


And it is again convenient to quote you:

The only "phase" remaining is the cos (kz) term, which is really
an amplitude description, not a phase.


You also have said that all the phase information is still there,
that superposition doesn't destroy any information. I believe you.
The standing wave current is a cosine function. The arc-cosine of
the amplitude yields the phase of the component waves.

Since the traveling wave phase exists only in your imagination, just
pick a number that supports whatever you are trying to "prove" now.


The point is that this is the very current that Roy used to
"measure" the phase shift through a loading coil. I agree with
you that standing wave current cannot be used to measure the
phase shift through a loading coil. Now if you will tell that
technical fact to Roy, he can withdraw his previous assertions.

It seems that you are contradicting yourself by saying that all
the information in the component waves is still there after
superposition yet you say the phase is gone. Both statements
cannot be true.
--
73, Cecil http://www.w5dxp.com
 
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