Super-resolution characteristics based on time-reversed single-frequency electromagnetic wave

Huilin Tu 1 Shaoqiu Xiao 1 Dominique Lesselier 2 Mohammed Serhir 3
1 UESTC - University of Electronic Science and Technology of China
2 L2S - Laboratoire des signaux et systèmes
3 GeePs - Laboratoire Génie électrique et électronique de Paris
Abstract : A sub-wavelength three-antenna array that is able to perform super-resolution focusing with single-frequency signal excitations is investigated using time-reversal. The antenna array is loaded with a set of uniformly distributed thin metal wires, which when combined with single-frequency electromagnetic waves from a time-reversal mirror yields a 1=35 wavelength super-resolution focusing at the targeted antenna. The length of the metal wires in particular determines the frequency band enabling super-resolution performance. The results have signi cance for the super-resolution investigation of multi-band compact antenna ar- rays involving micro-structures, with potential linkage with recent studies on super-resolution mechanisms in deterministic complex media.
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Journal articles
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https://hal-centralesupelec.archives-ouvertes.fr/hal-01310741
Contributor : Dominique Lesselier <>
Submitted on : Tuesday, May 3, 2016 - 10:11:00 AM
Last modification on : Friday, May 24, 2019 - 5:28:44 PM

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CNRS | INSMI | UPMC | L2S | SUP_LSS | GEEPS | CENTRALESUPELEC | PIEM | TDS-MACS | SUP_SIGNAUX | UNIV-PARIS-SACLAY | SORBONNE-UNIVERSITE | SU-SCIENCES

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Huilin Tu, Shaoqiu Xiao, Dominique Lesselier, Mohammed Serhir. Super-resolution characteristics based on time-reversed single-frequency electromagnetic wave. Journal of Electromagnetic Waves and Applications, Taylor & Francis, 2016, 30 (13), pp.1670 - 1680. ⟨10.1080/09205071.2016.1210037⟩. ⟨hal-01310741⟩

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