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Photonically Assisted 2-D Transmit Array Using Fourier-Optic-Based Beamformer
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DOI：10.1109/TMTT.2025.3581547.png)
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This article presents the development and demonstration of a photonically actuated ultrawideband (UWB), 2-D transmit array using a Fourier optical lens as a beamformer. The transmitted beam direction is selected using a beam-space optical fiber array fed through an optical switch matrix. A data encoding scheme was developed, in which custom intermediate frequency (IF) signal/data can be modulated on phase-locked tunable optical paired sources (TOPSs). A 2-D RF front-end, consisting of a tapered slot array (TSA), medium power amplifier (MPA), and needle-packaged photodetector (PD) arrays, was also developed. Experimental measurement of the far-field pattern of the developed system was conducted to demonstrate 2-D wide angular beam steering over an ultrawide frequency band from 10 to 20 GHz.
Keyword:
Optical fibers
Optical imaging
Optical attenuators
Optical amplifiers
High-speed optical techniques
Optical arrays
Radio frequency
Optical switches
Phased arrays
Optical beams
Beamformer
Fourier optical lens
phased array
transmit
ultrawideband (UWB)
期刊
IF:
4.5
论文数:
727
被引数:
3.5W
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