Distributed phased array antenna system

Communications: directive radio wave systems and devices (e.g. – Directive – Including a steerable array

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342357, H04B 7185

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active

058961054

ABSTRACT:
An array of individual and autonomous modules are deployed in a region to be surveilled. Each module, contained in an air dropable bomblet, includes a GPS system for determining the exact location of the deployed module. The module also includes an rf receiver and transmitter, as well as an atomic clock circuit for providing highly precise time and clocking signals, with operation of the module circuitry being governed by a control computer. The computers of the modules are individually programmed such that the modules of the array collectively operate as a distributed phased array antenna system, but without any hardwired interconnection between the modules. In another embodiment a single receiver is utilized and the apparatus operates on the frequency set of the GPS system.

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patent: 5767804 (1998-06-01), Murphy
"Microwave Imaging of Aircraft", Proceedings Of The IEEE, vol. 76, No. 12, Dec., 1988, Bernard D. Steinberg, pp. 1578-1592.
"Improved Adaptive-Beamforming Target for Self-Calibrating a Distorted Phased Array", IEEE Transactions On Antennas And Propagation, vol. 38, No. 2, Feb., 1990, Bongsoon Kang, Harish M. Subbaram and Bernard D. Steinberg, pp. 186-194.
"The Peak Sidelobe of the Phased Array Having Randomly Located Elements", IEEE Transactions On Antennas And Propagation, vol. AP-20, No. 2, Mar., 1972, Bernard D. Steinberg, pp. 129-136.

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