Antenna assembly producing steerable beam and null

Details Antenna assembly producing steerable beam and null Antenna assembly producing steerable beam and null

1976-02-25

1977-04-12

Lieberman, Eli

Communications: radio wave antennas

Antennas

With coupling network or impedance in the leadin

343100SA, 340 6R, H01Q 326, G01S 386

Patent

active

040178676

ABSTRACT:
A prior art antenna ass embly comprises an array of elements, a steerable beamformer for producing a desired beam and a processor interconnecting the elements and the beamformer to introduce a steerable null. Presently disclosed is a processor which broadens the steerable null while not adversely affecting its low sensitivity character. This processor includes two or more beamformers uniquely related to one another and means for substracting combinations of their outputs from the various inputs to the steerable beamformer.

REFERENCES:
anderson V. C., "Dicanne, A Realizable Adaptive Process," The Jn. of the Acoustical Soc. of America, vol. 45, No. 2, pp. 398-405, 343-854.
Winder A. A., "Sonar System Technology," IEEE Transactions on Sonics & Ultrasonics, vol. SU-22, No. 5, pp. 308-312.

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