> This sounds closer to genetic programming -- they evolved a program that describes an antenna.
Based on my understanding of the paper, the members of the population were individuals which each encoded an antenna design as lengths of wire segments and rotations between segments. They weren't programs but rather what amounts to descriptions of geometric forms. So the output wasn't a program that was run to give an antenna, it was list of wire segments to assemble together in a certain way. But maybe the differences in in our interpretation comes down to mostly semantics.