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My last attempt on this subject only attracted lurkers and not those
that were technically minded so I thought I would try harder at the communication side. If one uses the present day modeling programs, items such as inductance are taken as point loads of zero length. Since in the real world inductance does has length a way of modeling it would be to redraw it as a distrubited load along the length of the actual inductor. When doing this modeling shows that current DOES NOT Change over the length of the inductance, thus there is no radiation.. Ignoring intercapacitance this supports the previous stand of Tom and Roy. Taking this point further, one wonders why inductors in the real world are not designed to be a point load, albiet in a two dimensional world. so that the length origionaly used by following published form factor can be used to RADIATE . In this sense it follows that inductances should be made in spiral form with special attention made to reducing intercapacitance ala basket weave pancake design. The above flies in the face of what is presently published in books but so is the relationship of linear designs based on distance between physical dipoles instead of the distance between current max points so books are not infallable. The above does also question the practice of grounding a center point of a wound inductance since the above suggests that current is NOT zero at that point! Since Roy was correct in the first place maybe he will add some comments on what may be fallacious conclusions that I made on my part. Best regards Art |
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