The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 25, 1992
Filed:
Nov. 17, 1983
Edward C DuFort, Fullerton, CA (US);
Hughes Aircraft Company, Los Angeles, CA (US);
Abstract
A wideband shaped beam antenna having steep beam edge slopes in one plane is disclosed. An optical multiple beam antenna such as a geodesic lens antenna, a Luneberg lens or a circular folded pillbox, is coupled at selected points to a feed system having a power divider and phasing control. Coupling of the feed system to the optical multiple beam antenna is effected with a power transition having a wide frequency bandwidth and a capability of conducting high power levels. To shape the beam further, selected beams may be amplitude weighted. An aperture control device such as an E-plane sectoral horn, is attached when required, to narrow the beamwidth in the E-plane. By overlapping multiple beams of the optical multiple beam antenna in accordance with the invention, a sector beam having a constant position and constant steep edge slopes over an octave frequency bandwidth is obtained.