Answers are grounded in this paper and cite their sources.
Improved array performance (lower sidelobe levels, a better input match) requires elimination of approximations in earlier design procedures. One important change is to include internal higher order mode coupling. That is done here and is found to cause a simple but significant change in existing design formulas.
No takes yet. Share an insight, caveat, or question.
Elliott et al. (1986) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: