B. Philips et Ad. Olver, DESIGN AND PERFORMANCE OF PROFILED DIELECTRIC-LOADED HORNS, IEE proceedings. Microwaves, antennas and propagation, 141(5), 1994, pp. 337-341
Profiled dielectric loaded horns are investigated with the aim of obta
ining low peak crosspolar level and high aperture efficiency. A number
of nonlinear profiles are considered. The paper also looks into the i
nfluence of profiling on the bandwidth of the horn and the effect of n
onuniformities in the dielectric material on horn performance.