Antenna calibration

Details Antenna calibration Antenna calibration

2008-08-08

2011-12-27

Gregory, Bernarr (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Testing or calibrating of radar system

By monitoring

C342S165000, C342S173000, C342S175000, C342S368000, C343S7000MS, C343S703000, C343S824000

Reexamination Certificate

active

08085189

ABSTRACT:
The present invention relates to antenna calibration for active phased array antennas. Specifically, the present invention relates to a built-in apparatus for autonomous antenna calibration. Accordingly, the present invention provides an antenna array comprising: a plurality of antenna elements forming an array face and a plurality of calibration antennas mounted around the array face. The plurality of calibration antennas comprising one or more pairs. The calibration antennas have overlapping coverage areas such that the entire array face of the antenna array is within the coverage area of at least one calibration antenna and each pair of calibration antennas have overlapping coverage areas such that of a common area of the array face is within both coverage areas.

REFERENCES:
patent: 5001675 (1991-03-01), Woodward
patent: 5235342 (1993-08-01), Orton et al.
patent: 5253188 (1993-10-01), Lee et al.
patent: 5530449 (1996-06-01), Wachs et al.
patent: 5532706 (1996-07-01), Reinhardt et al.
patent: 5572219 (1996-11-01), Silverstein et al.
patent: 5657023 (1997-08-01), Lewis et al.
patent: 5677696 (1997-10-01), Silverstein et al.
patent: 5784030 (1998-07-01), Lane et al.
patent: 5809063 (1998-09-01), Ashe et al.
patent: 5861843 (1999-01-01), Sorace et al.
patent: 5864317 (1999-01-01), Boe et al.
patent: 5867123 (1999-02-01), Geyh et al.
patent: 5909191 (1999-06-01), Hirshfield et al.
patent: 5929809 (1999-07-01), Erlick et al.
patent: 5929810 (1999-07-01), Koutsoudis et al.
patent: 5977930 (1999-11-01), Fischer et al.
patent: 6037898 (2000-03-01), Parish et al.
patent: 6054951 (2000-04-01), Sypniewski
patent: 6084545 (2000-07-01), Lier et al.
patent: 6127966 (2000-10-01), Erhage
patent: 6157343 (2000-12-01), Anderson et al.
patent: 6163296 (2000-12-01), Lier et al.
patent: 6232918 (2001-05-01), Wax et al.
patent: 6252542 (2001-06-01), Sikina et al.
patent: 6339399 (2002-01-01), Andersson et al.
patent: 6356233 (2002-03-01), Miller et al.
patent: 6448939 (2002-09-01), Maruta
patent: 6480153 (2002-11-01), Jung et al.
patent: 6489923 (2002-12-01), Bevan et al.
patent: 6636173 (2003-10-01), Graham
patent: 6778130 (2004-08-01), Bevan et al.
patent: 6778147 (2004-08-01), Sanada et al.
patent: 6940453 (2005-09-01), Kim
patent: 7068218 (2006-06-01), Gottl et al.
patent: 7106249 (2006-09-01), Kubo et al.
patent: 7215298 (2007-05-01), Fraschilla et al.
patent: 7324042 (2008-01-01), Werntz et al.
patent: 7340248 (2008-03-01), Kawasaki et al.
patent: 7358898 (2008-04-01), Kennedy, Jr. et al.
patent: 7362266 (2008-04-01), Collinson
patent: 7379019 (2008-05-01), Kennedy, Jr. et al.
patent: 7405696 (2008-07-01), Kennedy, Jr. et al.
patent: 7423586 (2008-09-01), Schieblich
patent: 7545321 (2009-06-01), Kawasaki
patent: 2004/0032365 (2004-02-01), Gottl et al.
patent: 2004/0061644 (2004-04-01), Lier et al.
patent: 2004/0127260 (2004-07-01), Boros et al.
patent: 2004/0252752 (2004-12-01), Kennedy, Jr. et al.
patent: 2006/0009162 (2006-01-01), Tan et al.
patent: 2006/0119511 (2006-06-01), Collinson
patent: 2006/0192710 (2006-08-01), Schieblich
patent: 2006/0273959 (2006-12-01), Kawasaki
patent: 2007/0293269 (2007-12-01), Kuwahara et al.
patent: 1 670 095 (2006-06-01), None
patent: 1 724 875 (2006-11-01), None
patent: 2 199 447 (1988-07-01), None
patent: 2 199 447 (1988-07-01), None
patent: 2 224 887 (1990-05-01), None
patent: WO 99/52173 (1999-10-01), None
patent: WO 99/54960 (1999-10-01), None
patent: WO 02/087009 (2002-10-01), None
patent: WO 2004/025321 (2004-03-01), None
U.S. Official Action U.S. Appl. No. 12/303,469 dated Aug. 27, 2010.
U.S. Official Action U.S. Appl. No. 12/302,148 dated Sep. 27, 2010.
Aumann, H. M. et al., Phased Array Antenna Calibration and Pattern Prediction Using Mutual Coupling Measurements, IEEE Transactions on Antennas and Propagation, Jul. 1989, pp. 844-850, vol. 37, No. 7.
GB Search Report dated Dec. 10, 2007.
European Search Report dated Oct. 11, 2007.
Preliminary Report on Patentability and Written Opinion dated Mar. 11, 2010.
U.S. Official Action U.S. Appl. No. 12/301,939 dated Sep. 24, 2010.

Affiliated with

Also associated with

Rating

Antenna calibration does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Antenna calibration, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Antenna calibration will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4269450