Two-dimensional optical architecture for phase and time-delay beamforming in a phased-array antenna

Daniel Dolfi; S. Bann; Jean-Pierre Huignard; J. Roger

doi:10.1117/12.138417

2 December 1992 Two-dimensional optical architecture for phase and time-delay beam forming in a phased-array antenna

Daniel Dolfi, S. Bann, Jean-Pierre Huignard, J. Roger

Proceedings Volume 1703, Optical Technology for Microwave Applications VI and Optoelectronic Signal Processing for Phased-Array Antennas III; (1992) https://doi.org/10.1117/12.138417
Event: Aerospace Sensing, 1992, Orlando, FL, United States

Abstract

We propose and experimentally demonstrate a two-dimensional optical architecture, based on polarization switching by N spatial light modulators of p x p pixels, which provides 2 exp N-1 time delays values and an analog control of the 0- to 2-pi phase for each of the p x p microwave signals actuating an active antenna. These signals originate from the coherent detection of a dual frequency laser beam obtained with an acoustooptic frequency shifter. Experimental results obtained at a microwave frequency of 1.8 GHz are presented.

Citation Download Citation

Daniel Dolfi, S. Bann, Jean-Pierre Huignard, and J. Roger "Two-dimensional optical architecture for phase and time-delay beam forming in a phased-array antenna", Proc. SPIE 1703, Optical Technology for Microwave Applications VI and Optoelectronic Signal Processing for Phased-Array Antennas III, (2 December 1992); https://doi.org/10.1117/12.138417

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