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Roger wrote:
Are there reflections at point "+"? Traveling waves going in opposite directions must pass here, therefore they must either pass through one another, or reflect off one another. In the absence of a real physical impedance discontinuity, they cannot "reflect off one another". In a constant Z0 transmission line, reflections can only occur at the ends of the line and only then at an impedance discontinuity. Does this match your own concept of the traveling waves acting at the {+} point Cecil? If not, where do we differ? Where we differ is that you allow traveling waves to "reflect off one another". There are no laws of physics which allow that in the absence of a physical impedance discontinuity. EM waves simply do not bounce off each other. -- 73, Cecil http://www.w5dxp.com |
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