Keith Dysart wrote:
While an example with a circulator makes it easy to
locate and account for the 'reflected power', there is
more to be learned by studying the example without.
You are not allowed to deny the existence of the 450 ohm
real world load while asserting that it still exists.
If it exists, it dissipates the reflected energy. If it
doesn't exist, it reflects the reflected energy. Please
choose one or the other - obviously, you cannot have both
at the same time.
While you can construct examples where the 'reflected
power' will boil water, there are alternate examples where
the total system dissipation drops in the presence of
'reflected power'. So sometimes 'reflected power' boils
water and sometimes it does not. Not a very reliable source
of energy it seems.
If reflected energy is not dissipated, it undergoes destructive
interference and is redirected back toward the load as constructive
interference instead of being incident upon the source. Why
are you having difficulty with that concept from page 388
of "Optics", by Hecht, 4th edition?
But I do suggest going back to the example. If there is no
flaw in the analysis, please explain where the 'reflected
power' goes.
Again, reflected power doesn't flow so it doesn't go anywhere.
Until you understand that simple fact of physics, further
discussion is unlikely to yield valid results. "Reflected power
that goes" is only one of your many conceptual flaws. So your
first logical step would be proving that reflected power actually
flows. After you do that, we can continue to your other conceptual
flaws.
--
73, Cecil
http://www.w5dxp.com