A Compact High-Performance Optical Control System for Phased Array Radars

Nabeel A. Riza

doi:10.1109/68.157153

A Compact High-Performance Optical Control System for Phased Array Radars

Nabeel A. Riza

General Electric

Research output: Contribution to journal › Article › peer-review

Abstract

A novel optical control system using nematic liquid crystals and acoustooptic devices is introduced that can provide compact, lightweight, low cost, transmit/receive mode, highperformance (> 6 bits), truly analog, 0-2π phase control for large (e.g., 5000 element) phased arrays. Modulo-2π phase control is demonstrated for a 120 MHz carrier, with a carriertonoise ratio of 116.8 dB/Hz at 1 MHz and a signal dynamic range of 55.5 dB at 1 MHz. A novel time‐multiplexed, two channel, radar beam scanning approach is introduced to provide fast 200 beams/s antenna scanning rates.

Original language	English
Pages (from-to)	1072-1075
Number of pages	4
Journal	IEEE Photonics Technology Letters
Volume	4
Issue number	9
DOIs	https://doi.org/10.1109/68.157153
Publication status	Published - Sep 1992
Externally published	Yes

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abstract = "A novel optical control system using nematic liquid crystals and acoustooptic devices is introduced that can provide compact, lightweight, low cost, transmit/receive mode, highperformance (> 6 bits), truly analog, 0-2π phase control for large (e.g., 5000 element) phased arrays. Modulo-2π phase control is demonstrated for a 120 MHz carrier, with a carriertonoise ratio of 116.8 dB/Hz at 1 MHz and a signal dynamic range of 55.5 dB at 1 MHz. A novel time‐multiplexed, two channel, radar beam scanning approach is introduced to provide fast 200 beams/s antenna scanning rates.",

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A Compact High-Performance Optical Control System for Phased Array Radars

Abstract

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