Programmable beam transform and beam steering control system for

Details Programmable beam transform and beam steering control system for Programmable beam transform and beam steering control system for

1988-04-29

1991-04-16

Blum, Theodore M.

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a steerable array

H01Q 322, H01Q 324, H01Q 326

Patent

active

050086804

ABSTRACT:
A programmable beam transform system is disclosed for performing both beam steering and beam shaping operations in a phased array antenna. A programmable beam transform control circuit is responsive to a plurality of input signals for selectively generating and applying a plurality of control signals to each intelligent phase shift control circuit in an array of phase shift control circuits/phase shifters/antenna elements. Each phase shift control circuit simultaneously modifies the plurality of control signals applied thereto as a function of its internally-stored data to develop its own phase shift command signal which is used by its associated phase shifter to phase shift that portion of the total energy applied thereto. On transmit, the phase-shifted energy outputs from the phase shifters in the array are then respectively transmitted by the associated antenna elements in the array to form the desired beam pattern at the desired beam position; and on receive the complementary function occurs.

REFERENCES:
patent: 3877012 (1973-04-01), Nelson
patent: 4178581 (1979-12-01), Willey, Sr.
patent: 4445119 (1984-04-01), Works
Publication, Distributed Beamsteering Control of Phased Array Radars, by T. . Waldron et al., Microwave Journal, pp. 133-134, 136, 140, 142-144, 146, Sep. 1986.
Publication (limited distribution), An Architecture to Beam Steer and Monitor a Phased Array Radar Antenna, by J. M. Willey, NRL Report 8965, Navel Research Laboratory, Washington, D.C. 20375-5000, 17 total pages, Jun. 12, 1986.

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