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Issued patent
Smooth-Walled Feed Horn
An issued NASA patent from the Technology Transfer catalog.
About this technology
Overview
NASA Goddard Space Flight Center has developed a smooth-walled feed horn that addresses the fabrication issues inherent in constructing corrugated feed horns. Corrugated feed horns offer excellent beam symmetry, main beam efficiency, and cross-polar response over wide bandwidths. However, these feed horns can be challenging to manufacture. Our technology is a smooth-walled feed horn that approximates the properties of a corrugated feed horn over a finite bandwidth, while being easier to fabricate. The novel feed horn provides diffraction-limited ~14 degree FWHM, with low cross polarization.