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:
Dec. 30, 2003
Filed:
Nov. 19, 2001
Applicant:
Inventor:
John Byam O'Connell, Seattle, WA (US);
Assignee:
The Boeing Company, Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 1/38 ;
U.S. Cl.
CPC ...
H01Q 1/38 ;
Abstract
A phased array antenna having a plurality of independent antenna modules which are arranged in a manner to significantly improve cross polarization isolation of the antenna. The antenna modules are arranged in rows and columns to form a grid arrangement. Each antenna module has a pair of radiating elements, and each module is rotated 90° from its adjacent antenna modules in each column. In this manner, the worst case cross polarization isolation performance of each module is not summed together at the same azimuth scan angle as every other module but rather is broken up over the entire azimuth scan angle.