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Journal Articles Journal of Electromagnetic Waves and Applications Year : 2016

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

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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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Dates and versions

hal-01310741 , version 1 (03-05-2016)

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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, 2016, 30 (13), pp.1670 - 1680. ⟨10.1080/09205071.2016.1210037⟩. ⟨hal-01310741⟩
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