Silica-wavequide optical time-shift network for steering a 96-element L-Band conformal array

Willie W. Ng; Robert Y. Loo; V. L. Jones; Jack B. Lewis; Stan Livingston; J. J. Lee

doi:10.1117/12.218518

1 October 1995 Silica-wavequide optical time-shift network for steering a 96-element L-Band conformal array

Willie W. Ng, Robert Y. Loo, V. L. Jones, Jack B. Lewis, Stan Livingston, J. J. Lee

Proceedings Volume 2560, Optical Technology for Microwave Applications VII; (1995) https://doi.org/10.1117/12.218518
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

We report the demonstration of a 4-bit optoelectronic-switched silica-waveguide time-delay network. Targeted for insertion into a 96-element L-band conformal array, the optical time- shifter provides 16 programmable time-delays in steps of 0.248 nsec. By characterizing its RF insertion phase and synthesized pulse response, we verified that the relative time-delays generated by the waveguides were within 15 psec of their designed value. The antenna patterns obtained with the waveguide-module steering the central column of the phased array demonstrated greater than 50% instantaneous bandwidth for scan angles as wide as +/- 60 degrees.

Citation Download Citation

Willie W. Ng, Robert Y. Loo, V. L. Jones, Jack B. Lewis, Stan Livingston, and J. J. Lee "Silica-wavequide optical time-shift network for steering a 96-element L-Band conformal array", Proc. SPIE 2560, Optical Technology for Microwave Applications VII, (1 October 1995); https://doi.org/10.1117/12.218518

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