Dave Shrader wrote:
How does the wrong load impedance comes into existence?
Is it not caused by the mismatch?

Yep, the mismatch causes reflected waves which, in turn, cause the wrong
load impedance. It's easy to see in the following thought experiment.

200W source---one second long 50 ohm lossless feedline-----open

The source will output 100V at 2A for two seconds from key down and
be perfectly happy. The "wrong" impedance arrives exactly with the
reflected wave after two seconds. The center of the steady-state SWR
circle is the "right" impedance and therefore will not exist after two
seconds.
--
73, Cecil http://www.qsl.net/w5dxp



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