H - Electricity – 01 – Q
Patent
H - Electricity
01
Q
351/57, 343/67
H01Q 25/02 (2006.01) H01Q 1/18 (2006.01)
Patent
CA 1290430
ABSTRACT OF THE DISCLOSURE An active array system is disclosed with electronic roll stabilization of the difference patterns, and with arbitrary partitioning of the phase scanned aperture with no hardware changes. The array system comprises a large number of radiating elements forming the array, with individual transmit/receive active modules coupled to each radiating element. In each active module, the received signal is amplified and then divided into three signal components. Two of the signal components are passed through a bi-state phase shifter for selectively phase shifting the signal component by 0 to 180 degrees. The selectively phase shifted receive signals are then coupled to the respective azimuth and elevation difference chan- nels. The third signal component is coupled to the sum channel network. The respective sum and difference channels all provide summing functions on the respective sum and difference signals from each module. The phase shifters provide an output signal with either a positive or negative sign, so that in effect the module signals are "differenced" first and then summed.
565112
Hughes Aircraft Company
Sim & Mcburney
Vodopia Samuel N.
LandOfFree
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