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Old April 30th 09, 09:59 PM posted to rec.radio.amateur.antenna
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Default Dish reflector

Jim Kelley wrote:
So I guess that ups the total now to at least two that we know of.
Just exactly how many different kinds of alternating current do you
reckon there are, Cecil? :-)


The point is that the current in a pure standing wave has
a different equation from the current in a pure traveling
wave. Any fields and waves reference book will have those
equations. The current in a pure standing wave cannot be
used to measure any kind of phase shift between points
because the phase doesn't shift between points on a wire
or on a coil. The current in a standing-wave antenna, like
a loaded mobile antenna, is primarily standing wave current.
Why do you think they are called standing wave antennas?
--
73, Cecil, IEEE, OOTC, http://www.w5dxp.com
 
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