Communications: directive radio wave systems and devices (e.g. – Testing or calibrating of radar system
Reexamination Certificate
2011-08-02
2011-08-02
Tarcza, Thomas H (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Testing or calibrating of radar system
C342S174000
Reexamination Certificate
active
07990312
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 self-calibration of a plurality of calibration antennas comprising the steps of: (i) selecting two calibration antennas to be calibrated that have a common area in range of both calibration antennas; (ii) selecting at least one radiating element within range of the two calibration antennas; (iii) transmitted a known test signal from the one or more selected radiating elements; (iv) measuring a received signal at each of the two calibration antennas; (v) comparing the received signals at each of the two calibration antennas; and (vi) determining a correction coefficient for each calibration antenna based on the received signals at the said calibration antennas.
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, 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: 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 2004/025321 (2004-03-01), None
International Preliminary Report on Patentability together with Written Opinion dated Mar. 11, 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.
U.S. Official Action U.S. Appl. No. 12/301,939 dated Sep. 24, 2010.
U.S. Official Action U.S. Appl. No. 12/302,148 dated Sep. 27, 2010.
European Search Repot 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.
International Search Report dated Sep. 18, 2008.
European Search Report dated Jan. 23, 2008.
UK Search Report dated Dec. 6, 2007.
International Search Report and Written Opinion dated Sep. 18, 2009.
International Search Report and Written Opinion dated Sep. 16, 2008.
GB Search Report dated Dec. 3, 2007.
Official Action U.S. Appl. No. 12/302,073 dated Aug. 12, 2010.
BAE Systems plc
Brainard Timothy A
Scully Scott Murphy & Presser, PC
Tarcza Thomas H
LandOfFree
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.
Profile ID: LFUS-PAI-O-2791507