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K7JEB wrote:
From an Optics viewpoint, we've been at this for an awfully long time. Maxwell's equations and quantum mechanics are just frosting on a very large cake. A great deal of Physics has been devoted to studying electromagnetic radiation over the centuries. In particular: An understanding of how RF reflections can be eliminated by a 1/4WL series matching section can be had from understanding how a 1/4WL layer of thin-film on glass can eliminate coherent light reflections from the surface of the thin-film. The irradiance equations which predict the power distribution of light waves undergoing interference can be used to understand RF energy flow in a transmission line with reflections. Staring at oneself in a mirror should convince any skeptical RF engineer that reflected energy actually makes a round trip to the reflection point and back and doesn't flow directly from the image-source to the eye (or to the circulator load resistor). :-) -- 73, Cecil http://www.qsl.net/w5dxp |
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