Communications: directive radio wave systems and devices (e.g. – Directive – Including a steerable array
Patent
1994-06-01
1997-01-07
Tarcza, Thomas H.
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a steerable array
342154, 342 81, 342368, H01Q 322
Patent
active
055921787
ABSTRACT:
A phased array radar antenna uses time-steering subarray notch weightings to produce a wideband notch in the direction of interference for Electronic-Counter-Measure (ECM) interference suppression. A predetermined set of subarray notch weightings, each set being identical for each subarray, is stored in controllers each of which is coupled to a plurality of phase shifters and attenuators for feeding radiating elements of the antenna. Interference suppressors operate from a plurality of controllers to produce a subarray pattern having a notch in the direction of interference. Beamformers then combine outputs of all time-steering subarrays in the antenna so as to produce an antenna pattern having a wideband notch in the direction of interference.
REFERENCES:
patent: 3763490 (1973-10-01), Hadley et al.
patent: 4017867 (1977-04-01), Claus
patent: 4336543 (1982-06-01), Ganz et al.
patent: 4489324 (1984-12-01), Blume
patent: 4495502 (1985-01-01), Masak
patent: 4516126 (1985-05-01), Masak et al.
patent: 4736460 (1988-04-01), Rilling
patent: 4872016 (1989-10-01), Kress
patent: 4937584 (1990-06-01), Gabriel et al.
patent: 5103232 (1992-04-01), Chang et al.
"Optimizing the Synthesis of Shaped Beam Antenna Patterns," H. J. Orchard, R. S. Elliott, G. J. Stern, IEEE Proceedings (London), Pt. H., 1 (1985), pp. 63-68.
"Pattern Synthesis Based on Adaptive Array Theory," E. C. Dufort, IEEE Transactions on Antennas and Propagation, vol. 37, No. 8, Aug. 1989, pp. 1011-1018.
Beltran Fernando
Chang Kaichiang
Steudel Fritz
Mofford Donald F.
Phan Dao L.
Raytheon Company
Tarcza Thomas H.
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