Method and apparatus for optimizing feedhorn performance

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

1983-06-21

1986-03-25

Lieberman, Eli

Communications: radio wave antennas

Antennas

Wave guide type

343840, H01Q 1302, H01Q 1306

Patent

active

045786810

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.

REFERENCES:
patent: 3434146 (1969-03-01), Petrich
patent: 3553707 (1971-01-01), Yang et al.
patent: 3815139 (1974-06-01), Lewis et al.
patent: 4338609 (1982-07-01), Landry

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