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Old March 1st 07, 06:12 PM posted to rec.radio.amateur.antenna
Cecil Moore Cecil Moore is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 1,614
Default tuner - feedline - antenna question ?

Jim Kelley wrote:
I don't agree that the terms power and energy become interchangeable by
virtue of the fact that their units can both be expressed with the word
Joule in them.


That's why I am willing to switch from the words "Reflected
Power" to "Reflected Energy" and measure that energy flow
past a point on a transmission line in joules/second.
Thus "power" and "watts" are dropped from the discussion
along with any semantic disagreements over the definitions
of those words.

So the question is: With a forward RF energy flow of 200
joules/sec and a reverse RF energy flow of 100 joules/sec,
would you agree that there is 300 joules of energy existing
in a lossless one-second long transmission line? i.e. exactly
the amount of energy required to support the forward RF
energy wave and the reflected RF energy wave.

Or if the above transmission line is one microsecond long,
that 300 microjoules of energy exists in the line, i.e.
exactly the amount of energy required to support the
forward RF energy wave and the reflected RF energy wave.
--
73, Cecil, http://www.qsl.net/w5dxp