Roy Lewallen wrote:
Under those conditions, the phase of the current
is nearly constant along the wire, so the fields from the various parts
of the antenna add together in phase at a distant point broadside to the
wire.
And remember, that's the net current, i.e. the current in the standing
wave. It, as a net stand alone entity, is not flowing anywhere. It is
merely the phasor sum of two traveling waves traveling in opposite
directions. The phase of the forward current and the phase of the
reflected current are changing in the normal traveling wave manner.
But since their phases are rotating in opposite directions, their
net phasor sum results in very little phase shift. In fact, Kraus
shows zero phase shift for the standing wave current on an
infinitesimally thin wire.
--
73, Cecil
http://www.qsl.net/w5dxp
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