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Metal Horns as Directive Receivers of UltraShort Waves G C Southworth and A P King Proceedings of
Electromagnetic Horn Design L J Chu and W L Barrow Transactions of the AIEE July 1939
33 other sections not shown
amplitude Antennas Propagat aperture efficiency aperture field approximation attenuation axis bandwidth beamwidth calculated Cassegrain antenna characteristics circular waveguide Clarricoats coefficient components computed coordinate corrugated conical horn corrugated horn corrugated waveguide curves cylindrical diameter dielectric cone dielectric-cone diffracted fields diffraction dimensions E-plane edge electric field electromagnetic horns Electron equation excited factor far-field feed horn field distribution Figure flare angle frequency function given grooves H-plane horn antenna horn aperture hybrid modes IEEE IEEE Trans illumination launcher lobe longitudinal M. S. Narasimhan maximum measured multimode noise temperature obtained on-axis optimum paper parabolic reflector paraboloid phase center phase error pipe plane patterns polarization Proc propagation pyramidal horn radiation pattern ratio rectangular reflector reflector antennas region scalar feed sectoral horn shown in Fig sidelobe sidelobe levels slots solution spherical spillover subreflector surface symmetric taper theoretical theory tion transverse values vector VSWR wave wavelength width zero