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Old February 14th 08, 02:31 AM posted to rec.radio.amateur.antenna
Cecil Moore[_2_] Cecil Moore[_2_] is offline
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First recorded activity by RadioBanter: Mar 2007
Posts: 3,521
Default Standing wave and power

Yuri Blanarovich wrote:
Kraus so effectively explains it in the introduction to his book, but the
"expertise" on this news group insists on otherwise - "no power in standing
wave circuit".


The energy in the traveling waves was supplied as power
by the source during the power-on transient state and is
exactly the amount of energy needed to support the forward
and reflected waves. The energy in the forward and reflected
waves is dissipated during the power-down transient state.

Assuming an integer number of cycles per second, a one second
long lossless transmission line with a forward power of 200
watts and a reflected power of 100 watts contains 300 joules
of energy.
--
73, Cecil http://www.w5dxp.com