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Proceedings Paper

Compact electro-optic controller for microwave phased-array antennas
Author(s): Nabeel A. Riza
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Paper Abstract

A compact, low cost, phased array antenna optical beamformer with element level analog phase (0 - 2 (pi) ) and amplitude control using nematic liquid crystal display-type technology is experimentally demonstrated. Measurements indicate > 6-bit phase control and 52.6 dB of amplitude attenuation control. High quality error calibration and antenna sidelobe level control is possible with this low control power, analog antenna controller. Optical system options using rf Bragg cells or wideband Bragg cells are discussed.

Paper Details

Date Published: 9 November 1993
PDF: 11 pages
Proc. SPIE 2026, Photonics for Processors, Neural Networks, and Memories, (9 November 1993); doi: 10.1117/12.163581
Show Author Affiliations
Nabeel A. Riza, GE Corporate Research and Development Ctr. (United States)


Published in SPIE Proceedings Vol. 2026:
Photonics for Processors, Neural Networks, and Memories
Stephen T. Kowel; William J. Miceli; Joseph L. Horner; Bahram Javidi; Stephen T. Kowel; William J. Miceli, Editor(s)

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