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Article Dans Une Revue Ieee Open Journal of Antennas and Propagation Année : 2021

Bessel-Gauss Beam Launchers for Wireless Power Transfer

Résumé

In this work, we study the use of Bessel-Gauss beam launchers for wireless power transfer (WPT) applications. The power transfer efficiency between two radiating apertures is investigated in the radiative near field. A spectral Green's function approach is used to derive the power efficiency under a simultaneous conjugate impedance match. The transverse electromagnetic (TEM) mode of a coaxial cable, as well as Bessel beam (BB) and Bessel-Gauss beam (BGB) field distributions, are considered as aperture distributions. Numerical results demonstrate that a BGB field distribution is the optimal choice for WPT due to its limited spectrum and reduced diffraction of the radiated beam. We synthesized a Bessel-Gauss launcher that exhibits power efficiency exceeding 50% for distances larger than 30 lambda. These results show that non-diffracting beams can pave the way toward efficient near-field WPT systems with extended operating ranges.
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Dates et versions

hal-03413362 , version 1 (29-11-2021)

Licence

Paternité - Pas d'utilisation commerciale - Pas de modification

Identifiants

Citer

Srdan Pakovic, Siyi Zhou, David Gonzalez-Ovejero, Santi Concetto Pavone, Anthony Grbic, et al.. Bessel-Gauss Beam Launchers for Wireless Power Transfer. Ieee Open Journal of Antennas and Propagation, 2021, 2, pp.654-663. ⟨10.1109/OJAP.2021.3078234⟩. ⟨hal-03413362⟩
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