A parametric study of inductive SWIPT systems assisted by metamaterial using virtual magnetic TL-based channel modeling
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Journal of Microwaves, Optoelectronics and Electromagnetic Applications
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This paper presents a general methodology based on the
description of the inductive channel as virtual magnetic
transmission-lines (VMGTLs). In comparison with other existing
methods, VMGTL approach presents a better physical insight of
the channel behavior since the model correctly preserves the energy
flow between the transmitting and receiving coils. Besides that, it
facilitates the integration into the analysis of highly nonlinear and
dispersive structures such as metamaterial (MTM) lenses.
Particularly, the virtual-TL analogy clarifies that the enhancement
of the transmission gain between any two coils assisted by MTM is
not due to an enhanced coupling between the drivers, as usually
claimed, but to the emergence of propagating near-field modes
supported by the MTM. This approach, by means of a parametric
study, also indicates, for the first time, that MTMs could be
employed not only for the increasing of power but also of data
transfer due to the emergence of a sub-resonant region of minimum
distortion. Nonetheless, since both effects are mutually exclusive, no
passive MTM structure could simultaneously improve power and
data transmission.
Como referenciar
ALMEIDA, JORGE V. de; SILVA, EDUARDO C. da; MOSSO, MARBEY M.; SARTORI, CARLOS A.F. A parametric study of inductive SWIPT systems assisted by metamaterial using virtual magnetic TL-based channel modeling. Journal of Microwaves, Optoelectronics and Electromagnetic Applications, v. 20, n. 1, p. 195-207, 2021. DOI: 10.1590/2179-10742021v20i1995. Disponível em: http://repositorio.ipen.br/handle/123456789/31981. Acesso em: 30 Dec 2025.
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