Antenna calibration

Details Antenna calibration Antenna calibration

2011-08-23

2011-08-23

Tarcza, Thomas H (Department: 3662)

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

Testing or calibrating of radar system

By monitoring

C342S165000, C342S173000

Reexamination Certificate

active

08004457

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 calibrationAccordingly, the present invention provides a method of continuous on-line monitoring of each element in an array antenna comprising the steps of: (i) transmitting known test signals to one or more elements of the array antenna; (ii) monitoring responses of the elements to the test signals; and (iii)comparing the response with expected responses for the elements to determine an operation condition of the elements.

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), Andersson 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), Göttl 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 et al.
patent: 7362266 (2008-04-01), Collinson
patent: 7379019 (2008-05-01), Kennedy et al.
patent: 7405696 (2008-07-01), Kennedy 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 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: 0 812 027 (1997-12-01), None
patent: 1 496 567 (2005-01-01), None
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: 2 224 887 (1990-05-01), None
patent: 2 300 076 (1996-10-01), None
patent: WO 95/34103 (1995-12-01), None
patent: WO 98/52248 (1998-11-01), 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
patent: WO 2004025321 (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. 12/301,939 dated Sep. 24, 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.
European Search Report dated Jan. 24, 2008.
UK Search Report dated Nov. 16, 2007.
International Search Report and Written Opinion dated Sep. 17, 2008.
Extended European Search Report dated Jan. 30, 2008.
Official Action U.S. Appl. No. 12/302,073 dated Aug. 12, 2010.

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