Jim Lux writes:

Here's the reference to the paper by Burke:
Title: Recent advances to NEC (Numerical Electromagnetics Code):
Applications and validation
Authors: Burke, G. J.
Affiliation: Lawrence Livermore National Lab., CA.
Journal: Presented at the Conference on Modern Antenna Design Using
Computers and Measurement Application To Antenna Problems of Military
Interest, Ankara, Turkey, 19-20 Oct. 1989
Publication Date: 03/1989

Thanks.

Recent advances, dated 1989.

What's been going on during the 18 years since then? Polishing NEC-4,
and developing other codes for specialized purposes, presumably. I
know it's a big question, but maybe somebody here can tell us
something.

73
LA4RT Jon, Trondheim, Norway