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:
Jul. 31, 2001
Filed:
Jan. 11, 2000
Gary A. Martek, Edgewood, WA (US);
Metawave Communications Corporation, Redmond, WA (US);
Abstract
Systems and methods are disclosed for illuminating multiple columns of antennas to provide a desired wave front without introducing non-coherent combining. The preferred embodiment feed network provides elevation scanning for a multiple beam antenna system on a per antenna beam basis. In a preferred embodiment columns of antenna elements are divided into phase-centers having a relative phase shift introduced there between. Phase differentials are introduced into the antenna beam signals of each phase-center of antenna elements in order to provide a phase progression which steers the antenna beam a predetermined angle from the broadside. The phase differentials are independently provided for each antenna beam signal to thereby allow independent steering of each antenna beam.