MU-NEGATIVE METAMATERIALS SEEN AS BAND-LIMITED NON-FOSTER IMPEDANCES IN INDUCTIVE POWER TRANSMISSION SYSTEMS

Authors

  • Jorge V. de Almeida
  • Gláucio L. Siqueira
  • Marbey M. Mosso
  • Carlos A. F. Sartori

DOI:

https://doi.org/10.1590/2179-10742019v18i41625

Keywords:

Coupling enhancement, magnetic circuit, metamaterial-based lens, non-Foster impedance matching

Abstract

In the last decade, various works have demonstrated that a class of artificial material called metamaterials (MTM) can synthesize mu-negative (MNG) media capable of evanescent-wave focusing which largely enhances the magnetic coupling between coils, which is the basic mechanism of Inductive Power Transmission (IPT) systems. In the present work, MTM-enhanced coupling in IPT systems is examined through analytical and numerical results, which are validated by experimental data. Adopting a transmission-line (TL) based approach to describe the general MTM-enhanced IPT system, it is evidenced that MNG MTMs can be interpreted as a negative impedance from a circuital point of view.

 

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Published

2020-04-10

How to Cite

Jorge V. de Almeida, Gláucio L. Siqueira, Marbey M. Mosso, & Carlos A. F. Sartori. (2020). MU-NEGATIVE METAMATERIALS SEEN AS BAND-LIMITED NON-FOSTER IMPEDANCES IN INDUCTIVE POWER TRANSMISSION SYSTEMS. Journal of Microwaves, Optoelectronics and Electromagnetic Applications (JMOe), 18(4), 492-504. https://doi.org/10.1590/2179-10742019v18i41625

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