Communications: directive radio wave systems and devices (e.g. – Directive – Including a steerable array
Reexamination Certificate
2009-02-18
2011-11-01
Tarcza, Thomas (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a steerable array
Reexamination Certificate
active
08049667
ABSTRACT:
An antenna system has N antenna units stacked on a mast. Each unit has elements for responding to, e.g., GPS signals, and a phasing network that produces mutually orthogonal primary and auxiliary pattern modes at corresponding mode ports of the unit. A number of power dividers are each associated with a different mode, and each divider has N input ports coupled to the associated mode port of a corresponding antenna unit. The power divider associated with the primary pattern mode produces a reference beam and an auxiliary beam, and remaining power dividers produce different auxiliary beams. All beams have approximately both a common phase center and a common group delay center. An adaptive processor combines the reference and selected auxiliary beams to obtain a composite antenna reception pattern in which nulls are inserted at certain angles to suppress interfering signals, without degrading authentic signals arriving at other angles.
REFERENCES:
patent: 2217911 (1940-10-01), Lindenblad
patent: 5311194 (1994-05-01), Brown
patent: 5361212 (1994-11-01), Class et al.
patent: 5534882 (1996-07-01), Lopez
patent: 6201510 (2001-03-01), Lopez et al.
patent: 6246369 (2001-06-01), Brown et al.
patent: 6300915 (2001-10-01), Lopez
patent: 6618016 (2003-09-01), Hannan et al.
patent: 6819291 (2004-11-01), Lackey et al.
patent: 7417597 (2008-08-01), Lopez
patent: 2010/0117914 (2010-05-01), Feller et al.
A. Monteiro, A Parasitic Lindenblad Antenna for 70cm, AMSAT Proceedings (2006).
R. A. Monzingo, et al., Introduction to Adaptive Arrays, Scitech Publishing, Inc. (2004), pp. 6-8 and 260-266.
B. Pattan, Robust Modulation Methods & Smart Antennas in Wireless Communications, Prentice Hall PTR (2000), pp. 241-250.
BAE Systems Information and Electronic Systems Integration Inc.
McGue Frank
Tarcza Thomas
Zucker Leo
LandOfFree
GPS antenna array and system for adaptively suppressing... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with GPS antenna array and system for adaptively suppressing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and GPS antenna array and system for adaptively suppressing... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4279539