Narrow-band beam steering system

Details Narrow-band beam steering system Narrow-band beam steering system

G - Physics

10

K

351/19, 349/23,

G10K 11/34 (2006.01) H01Q 3/38 (2006.01) H03H 19/00 (2006.01)

Patent

CA 1227837

NARROW-BAND BEAM STEERING SYSTEM ABSTRACT A narrow-band phase shift beamformer system is disclosed. The outputs from the elements in a transducer array are each divided into two components whose amplitudes are respectively proportional to the sine and cosine of the required phase shift, which are then processed so that the steered beam may be formed by coherent summation. The proportionalities of the respective sine and cosine components are achieved by switched capacitor circuits, which are preferably implemented by LSI circuits, permitting substantial hardware savings and yielding highly accurate component proportionalities.

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