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Sal M. Onella wrote:
"Cecil Moore" wrote in message news ![]() Roy Lewallen wrote: Yes, this misconception will never die. Is it really worth the trouble continually trying to contradict it? Not if all you do is trade one old-wives tale for another. It's hardly an old wives' tale. 1. The original old wives tale is that reflected power *always* causes the source dissipation to increase, even when it is a voltage source. 2. The subsequent old wives tale is that reflected energy always ends up being radiated by the antenna. Examples of decreased dissipation in the voltage source in the presence of reflections proves #1 wrong. Examples of increased dissipation in a current source in the presence of identical reflections above proves #2 wrong. The power density in reflected waves is proportional to ErefxHref and *CANNOT* be zero. Where that energy goes obeys the conservation of energy principle. Anyone who says all energy winds up being radiated by the antenna is simply ignorant even if portraying himself as a guru. -- 73, Cecil http://www.w5dxp.com |
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