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Your search keyword '"Santi C. Pavone"' showing total 2 results
Start Over Author "Santi C. Pavone" Journal ieee open journal of antennas and propagation
2 results on '"Santi C. Pavone"'

1. Forward and Inverse Scattering of Metallic Objects Through Focused Bessel-Shaped Fields

Author

Santi C. Pavone, Gino Sorbello, and Loreto Di Donato

Subjects
Inverse scattering, forward scattering, Bessel-shaped fields, focusing, microwave imaging, physical optics, Telecommunication, TK5101-6720
Abstract

This paper deals with both forward and inverse electromagnetic scattering of metallic objects by focused Bessel-shaped incident field. After discussing the main features of this kind of field, it is shown that its focusing capabilities may offer new effective possibilities for the detection of metallic targets which are not so far extended with respect to the probing wavelength, i.e., not satisfying the hypotheses of physical optics approximation. Numerical examples are performed by means of full-wave simulations, and then inversion algorithms based on back-propagation and physical optics are exploited to show that more accurate reconstructions can be pursued using Bessel-shaped fields.

Published
2022
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2. Bessel–Gauss Beam Launchers for Wireless Power Transfer

Author

David Gonzalez-Ovejero, Mauro Ettorre, Siyi Zhou, Anthony Grbic, Santi C. Pavone, Srdan Pakovic, Institut d'Électronique et des Technologies du numéRique (IETR), Nantes Université (NU)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Università degli studi di Catania [Catania], University of Michigan [Ann Arbor], University of Michigan System, Ministry of Higher Education and Research, Brittany through the Contrat de plan Etat-Region (CPER), Universite de Rennes 1, Italian Ministry of Education and Scientific Research (MIUR) through the Project PON-AIM 'Attraction and International Mobility', Université de Nantes (UN)-Université de Rennes 1 (UR1), Université de Nantes (UN)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), and Università degli studi di Catania = University of Catania (Unict)

Subjects
Diffraction, Coaxial cable, wireless power transfer, Near and far field, 02 engineering and technology, Bessel beams, horn antennas, 01 natural sciences, law.invention, 010309 optics, [SPI]Engineering Sciences [physics], Optics, law, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, Maximum power transfer theorem, Wireless power transfer, non-diffracting beams, Physics, business.industry, 020206 networking & telecommunications, Bessel beam, Physics::Accelerator Physics, Bessel-Gauss beams, business, Electrical efficiency, Beam (structure)
Abstract

International audience; 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.

Published
2021

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