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