Dip brazed corrugated feed horn
AssigneeRockwell International Corporation
InventorTheodore A. Dumas
Life of this patent
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Abstract
A corrugated feed horn and its method of manufacture is disclosed for circularly polarized SHF (super high frequency) and EHF (extra high frequency) parabolic antennas operating in the 12-100 GHz range. A plurality of laminations are dip braze bonded, providing alternate fins and grooves in an inner conical configuration. Extremely thin fins are enabled without expensive parts or fabrication methods.
Claims10
A method for making a corrugated feed horn for an antenna, comprising:
- dip brazing a plurality of laminations providing alternate fins and grooves including controlling a braze metal to creep along the interfaces between the laminations, while preventing buildup of the metal in the grooves, said brazing including
- providing aligned apertures in said laminations;
- running braze metal wire through said aligned apertures;
- and
- melting said wire by dipping said laminations in a solution heated above the melting point of the wire but below the melting point of the laminations.
A method for making a corrugated feed horn for an antenna, comprising dip brazing a plurality of laminations providing alternate fins and grooves, including providing a cut-out section in one of said laminations to afford an open slot receive port in said horn for intermediate signal pick-off.
A corrugated feed horn for an antenna, comprising:
- a plurality of laminations providing alternate fins and grooves, the laminations being bonded by braze metal but having no substantial excess of said metal in the grooves, and having aligned apertures receiving braze metal wire melted to creep by capillary action along the interfaces between the laminations.
A corrugated feed horn for an antenna, comprising:
- a plurality of braze bonded laminations providing alternate fins and grooves with a slot receive port in said horn for intermediate signal pick-off provided by a cut-out section in one of said laminations.
Dependencies are inferred from the claim text.