Roy Lewallen wrote:
But there's a Z0 match at the source in my example. Simple wave
mechanics show that the initial traveling voltage and current waves
reflect from the load, return to the source, and don't reflect any
further -- steady state is reached after a single round trip. That's a
Z0 source match. No circulator is required.

You obviously don't understand a Z0-match, Roy. All the reflected
power is re-reflected back toward the load at a Z0-match. What you
have in your example is a Z0-match to 200 ohms. You can prove it
by observing that the reflections disappear on a piece of 200 ohm
feedline.

------200 ohm feedline---+---1/2WL 50 ohm feedline---200 ohm load

The SWR on the 50 ohm feedline is 4:1. The SWR on the 200 ohm
feedline is 1:1. That is a 200 ohm Z0-match and rho is 0.6

Hm. You said earlier that 11.52 watts of the reverse power wave reached
the source.

Reflected by wave cancellation *at* the source , certainly not
flowing back through the source. What I said is that the two 11.52
watt reflected wave components undergo wave cancellation that results
in 23.04 watts being re-reflected.

In a posting a short while ago you said that none of it is
re-reflected ...

Sorry, Roy, you know and I know that is a lie. Please
apologize and retract that false statement.
--
73, Cecil http://www.qsl.net/w5dxp


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