Communications: directive radio wave systems and devices (e.g. – Testing or calibrating of radar system – By monitoring
Reexamination Certificate
2006-10-10
2006-10-10
Tarcza, Thomas H. (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Testing or calibrating of radar system
By monitoring
C342S372000
Reexamination Certificate
active
07119739
ABSTRACT:
A technique is disclosed for calculating the phase and amplitude weighting factors for use with a specific compact antenna range that synthesize an in phase, constant amplitude planar wave front that appears to have been transmitted from the far field. The weighting factors are used to weight RF signals after they are received by a full size or scaled radio direction finding array mounted on a platform during testing of the antenna array on the compact antenna range. The weighted received signals accurately replicate the antenna array response in the far field, including electromagnetic glint caused by the platform on which the antennas are mounted, and are stored in complex voltage form as a calibration table for the array.
REFERENCES:
patent: 3766559 (1973-10-01), Butcher et al.
patent: 4280128 (1981-07-01), Masak
patent: 5039991 (1991-08-01), Boese et al.
patent: 5721554 (1998-02-01), Hall et al.
patent: 2003/0038747 (2003-02-01), Patel et al.
K.A. Struckman, Synthesis of DF array calibration manifolds from near-field measurements, IEEE Antennas and Propagation Society International Symposium, vol. 1, p. 711-714, Jun. 2004.
L. Duchesne et al., Compact multiprobe antenna test station for rapid testing of antennas and wireless terminals, 10th Asia-Pacific Conference on Communications and the 5th International Symposium on Multi-Dimensional Mobile Communications Proceedings, vol. 2, p. 553-557, Aug.-Sep. 2004.
A.J. Weiss et al., Manifold interpolation for diversely polarised arrays, IEE Proceedings—Radar, Sonar and Navigation, vol. 141(1), p. 19-24, Feb. 1994.
R.B. Ertel et al., Antenna array hardware amplitude and phase compensation using baseband antenna array outputs, IEEE 49th Vehicular Technology Conference, vol. 3, p. 1759-1763, May 1999.
R.C. Johnson et al., Determination of far-field antenna patterns from near-field measurements, □□Proceedings of the IEEE, vol. 61(12), p. 1668-1694, Dec. 1973.
N. Saucier and K. Struckman,Direction Finding Using Correlation Techniques, IEEE Antenna Propagation Society International Symposium, pp. 260-263, Jun. 1975.
BAE Systems Information and Electronic Systems Integration Inc.
Funk Joseph E.
Long Daniel J.
Mull F H
Tarcza Thomas H.
LandOfFree
Near field to far field DF antenna array calibration technique does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Near field to far field DF antenna array calibration technique, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Near field to far field DF antenna array calibration technique will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3622328