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Computer model experiment
Art Unwin wrote:
On May 11, 4:02 pm, Jim Lux wrote: Again you preach but obviously you are not qualified to address the issue. Opinions on qualification differ. AO pro by Beasley consistently produces an array in equilibrium when the optimizer is used as well as including the presence of particles dictated by Gauss., The program is of Minninec foundation which obviously does not require the patch work aproach that NEC has. Interestingly, MININEC uses the very same method of moments that NEC does, but, because it's "mini" it has substantial limitations. It was developed to fit in small microcomputers of the day. I'd hardly call NEC "patchwork". The two programs do use different formulations for the basis function defining the current on the segment. There are several papers out there that compare the mechanism of MININEC vs NEC. One might start with the report by Burke and Poggio (for NEC) and the report by Julian, Logam, and Rockway (which talks about MININEC). John Rockway published a paper in 1995 describing the history and differences. "Advances in MININEC" John Rockway, James Logan IEEE Antennas and Propagation Magazine, v37, #4, August 1995, p7-12 |
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