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:
Feb. 27, 2007
Filed:
May. 21, 2004
John Minkoff, Englewood, NJ (US);
John Minkoff, Englewood, NJ (US);
ITT Manufacturing Enterprises, Inc., Wilmington, DE (US);
Abstract
Methods and apparatus for improving the effective resolving power of an array antenna are described that are not limited by the physical characteristics of the array. In an array with M elements, up to M−1 directional vectors may be selected, preferably at angles corresponding to the main lobe and/or side lobes of an array antenna beam pattern. A received signal plus interference (s+i) is zero-transformed to eliminate interference received from the plurality of selected directions. The zero-transformed s+i is then restored to obtain the signal of interest observed at maximum gain undisturbed by interference incident from arbitrarily close signal sources. The approach may be combined with conventional beamforming techniques to remove interference incident from angles corresponding to the side lobes, where conventional beamforming techniques are most effective.