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Old December 29th 08, 05:16 PM posted to rec.radio.amateur.antenna
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Default transmission lines and SWR and fractional wave antennas

On Dec 29, 10:26*am, Cecil Moore wrote:
Art Unwin wrote:
At the moment I see no mechanism that supports the capacitor field to
expire in the direction of incoming current
prior to the completion of the forward period.


The "capacitive" field is the *electric* field which is
at a *maximum* amplitude at the tip of a dipole. It is
the magnetic (inductive) field that is close to zero
at the tip of a dipole.
--
73, Cecil *http://www.w5dxp.com

Cecil
I still am looking for an explanation that prevents current flow thru
the center.
I recognise that the common thinking is to accept reflection but I
fail to see
how that can happen so I can follow up with the numbers.
The capacitor is limited with respect to the energy that it can retain
so what happens when that
limit is reached and the forward period has not come to an end? Yes,
the common thinking
is that the current changes direction to oppose the forward moving
current as with a reflection
where the eddy current in the reverse direction cancels the eddy
current moving in the other direction.
It is here that I am looking for a mechanism that justifies this
reasoning of reflection so I can begin to dispel the
closed circuit aproach as seen with a full wave radiator in
equilibrium
Best regards
Art
Art
but I am looking for actual proof
 
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