Method and apparatus for optimizing feedhorn performance

Details Method and apparatus for optimizing feedhorn performance Method and apparatus for optimizing feedhorn performance

H - Electricity

01

Q

351/28

H01Q 13/02 (2006.01) H01Q 13/06 (2006.01) H01Q 19/13 (2006.01)

Patent

CA 1216060

ABSTRACT An optimized feedhorn comprising a circular waveguide having a corrugated plate disposed around the outside of the aperture of the waveguide wherein the corrugations of the plate are capacitive as to E plane signals. The feedhorn includes a reduced aperture diameter which selectively protrudes beyond the plane of the corrugated plate. The amount of protrusion of the aperture is determined to approximately equalize E and H plane beamwidths and selectively shape the top and skirts of the signal pattern around the center frequency of interest.

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