Thread: Vincent antenna
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Old December 9th 07, 06:39 AM posted to rec.radio.amateur.antenna
Cecil Moore[_2_] Cecil Moore[_2_] is offline
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Default Loading Coils; was : Vincent antenna

AI4QJ wrote:
Roy, this is the part I don't understand about some people posting on this
thread. A standing wave does *not* have a phase shift.


Robert A. Chipman agrees with you. He says the standing
wave phase is "... constant over any half wavelength ..."

Kraus also agrees. Here is a graphic from Kraus' book,
"Antennas", showing the lack of phase shift over the length
of a 1/2WL dipole. Essentially the same thing would be true
for short loaded dipoles and loaded mobile antennas.

http://www.w5dxp.com/krausdip.jpg

Roy admitted some time ago that EZNEC reports that
same constant phase for current over the entire length
of a 1/2WL dipole yet he still insists that same current
can be used to measure phase-shift/delay through a coil
when it cannot even be used to measure the phase shift
through 1/2WL of wire.
--
73, Cecil http://www.w5dxp.com