Answers are grounded in this paper and cite their sources.
A combination of the method of moments and the geometrical theory of diffraction (g.t.d.) is used to predict the radiation properties of 90° semiangle conical horns possessing a number of annular slots in the flange. Computed and measured results show good agreement, and a set of theoretical curves is given for application of the horn as a feed.
No takes yet. Share an insight, caveat, or question.
G.L. James (1977) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: