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Yes, Magid explains it thoroughly and well. His analysis includes
traveling waves from the beginning to the end. It's basically the same analysis I've done myself. What he *didn't* do was to throw the time-dependent information out the window at the very beginning of the analysis, as you've done in all your analyses involving only average power. That allows him to actually show where the energy is at every instant of time. It looks to me like his analysis is valid, so if your method leads to a different conclusion, I feel there's good reason to doubt its validity. Y'know, if every author seems to have it wrong, considering how many really, really intelligent and learned people there are out there, and how many times their work has been carefully reviewed, have you considered for just a moment the possibility that maybe, just maybe, they have it right and you have it wrong? But if you're absolutely convinced you've discovered something that all those other folks are mistaken about, why not write your own textbook? Or at least a paper or two for the professional publications. The world will thank you for straightening them out. Roy Lewallen, W7EL W5DXP wrote: Roy Lewallen wrote: You've now heard of Magid, ... Unfortunately, every author and guru that I have ever encountered, at some point, confuses cause and effect. I'm sorry I can't get over to the Texas A&M library right now but Magid seems to believe that standing waves can be sustained without a forward wave and a reflected wave. Does he explain how that is possible? In all honesty, it is an easy mistake to make. Even Ramo, Whinnery, and Van Duzer make the same mistake. Not exactly a quote but: The reflection coefficient is caused by the ratio of the reflected power to the forward power. Therefore, the ratio of the reflected power to the forward power is caused by the reflection coefficient. "Logic" like this seems to abound in the field of transmission lines. |
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