2 December 1992 Two-dimensional optical architecture for phase and time-delay beam forming in a phased-array antenna
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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.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Daniel Dolfi, Daniel Dolfi, S. Bann, S. Bann, Jean-Pierre Huignard, Jean-Pierre Huignard, J. Roger, 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); doi: 10.1117/12.138417; https://doi.org/10.1117/12.138417


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