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:
Jun. 11, 2002
Filed:
Oct. 31, 2000
Applicant:
Inventors:
Jar J. Lee, Irvine, CA (US);
Stan W. Livingston, Fullerton, CA (US);
Assignee:
Raytheon Company, Lexington, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 7/02 ; H01Q 1/310 ;
U.S. Cl.
CPC ...
G01S 7/02 ; H01Q 1/310 ;
Abstract
A low cost array with wide band elements interleaved into an “egg-crate” structure. The radiating elements are flared notch radiators. Good impedance match over a wide band was achieved by feeding each element with a tapered quasi-TEM slot line, which transforms a 50-ohm input impedance to a 120-ohm radiation impedance. The radiating elements are fed by a true time delay beam-forming network to ensure that the main beam points.