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On Mon, 08 Mar 2004 17:09:08 GMT, "aunwin"
wrote: The following excerpt is lifted directly from the Patent database for patent 5,625,367 at: http://patft.uspto.gov/netacgi/nph-P...S=IN/unwin-art So the antenna experts in this group don't understand how it functions We need only observe that public record, to observe an obvious error: "To increase the directivity of such an antenna, a parasitic reflector element, usually tuned to a frequency slightly higher than the driver resonant frequency, can be placed parallel to the driver element along the boom. For further increased directivity, one or more director elements, usually tuned to frequencies slightly lower than the driver resonant frequency, can be placed at various distances along the boom on the other side of the driver element and parallel to the driver element." the patent office accepted it as viable even tho my writing was not clear because they had a samplke. Well, um, yes, perhaps.... Is this samplke patented too? The source of your grief with books, trade magazines, periodicals, seminars, professionally juried papers, reports, educators, instructors, hams, engineers, citizen banders, Boy Scouts, and the rest appears to be in the near universality of their teaching that directors are tuned higher and reflectors are tuned lower than the driven element. Such inversions are consistent in your writings tho' with the backwards interpretations of Q, Series/Parallel resonance, Efficiency (did I forget anything?). 73's Richard Clark, KB7QHC |
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