Richard Clark wrote:
I noticed you do not retract your statement but whine about analysis
Tsk, Tsk

Nothing to retract, Richard. The direction of AC current flow is merely
a convention. In a balanced transmission line system, if the differential
current is flowing toward the load in one wire, it is flowing away from
the load in the other wire. Otherwise, it would be common-mode current.
At certain times during the RF cycle, the forward current phasor and the
reflected current phasor in one wire are both pointed toward the load.
In the other wire, they are pointed toward the source. 1/2 cycle later,
things are reversed.

Draw a DC circuit with a battery and a load. In one wire, the load
current is flowing toward the load. In the other wire, the load current
is flowing away from the load toward the battery. So we reference the
wire connected to the '+' battery terminal which is carrying the current toward
the load and call the other wire a return path. But balanced AC has no such
distinction. There is no positive terminal or negative terminal on the
AC generator except by convention. Incidentally, Edison shared your
confusion.

Taking the RF generator as the reference, a freeze-frame snapshot of the
RF current maximum points up and down a matched balanced transmission line
may result in:

------------------------------------------
Source Load
------------------------------------------
--
73, Cecil http://www.qsl.net/w5dxp



-----= Posted via Newsfeeds.Com, Uncensored Usenet News =-----
http://www.newsfeeds.com - The #1 Newsgroup Service in the World!
-----== Over 100,000 Newsgroups - 19 Different Servers! =-----