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#10
December 4th 06, 02:26 AM
posted to rec.radio.amateur.antenna
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Yagi efficiency
art wrote:
Cecil Moore wrote: Remember only R is of consideration for the addition of power from each element which provides flux unless you can quantasize reaction for me as producing the emmision of flux other than a indication of the direction it takes . I agree there are other losses but to prevent including losses that are outside the E and H process change over such as ground reflections etc is it not better to just accept The pure resistance only so there is no need to characterize individual losses Once you go beyond the near field it gets complicated as losses are created outside the EH generation process. Ii am not sure how the EZNEC thing functions but if you design the array where all elements are driven you can then use the individual element impedances to determine overall efficiency.i.e. power in versus power out Fortunately thats the way my program can operate Art Does this mean you are ignoring any interaction between elements? |
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