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![]() Cecil Moore wrote: Jim Kelley wrote: It was a tongue-in-cheek reply, Roy. These problems always seem to end up with a circulator in them at some point - clearly illustrating what happens under entirely different circumstances. :-) The circulator, lossless feedlines of unreasonable length, Time Domain Reflectometers, TV ghosting, etc. are all tools for illustration purposes. However, a Z0-matched system is an ordinary configuration in ham radio and is easy to analyze since no reflected energy is allowed to reach the source. The conservation of energy and momentum rules dictate where the energy must go in such a case. We can debate why the reflected energy is 100% re-reflected but there is no question that it *is* 100% re-reflected because none reaches the source and there are only two directions in a transmission line. I wish we were able to discuss this without it becoming so confrontational. As I've said to you many times, you've got 98% of this thing nailed to a tee. But that 2% is a major error from a physical standpoint. Energy is not flowing in the way you describe it. Power doesn't flow at all, but that's a different discussion. When the fields cancel, as in the anti-reflective/impedance matching scenario, energy is not conveyed in the reflected direction. There is no conservation of energy problem until you claim that that energy from cancelled waves IS moving in the reflected direction. Once you make that claim, you're forced to imagine a way for it to reverse its course, and that's where the problem lies. We've been over this a hundred times and you just refuse to accept it. It violates physics. It violates Maxwells equations. It's wrong, and I hate arguing with you about it, but as a fellow enthusiast I advise you not to print that part of your article in QEX. It's an absurdity in the midst of brilliance, not unlike myself. ;-) 73, Jim AC6XG |
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