Radiative power transmission from dipolar sources

Moorey, Charles; Holderbaum, William; Potter, Ben

doi:10.1109/wpt.2013.6556919

Cited by 1 publication

(1 citation statement)

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“…When the operating wavelength of a magnetically coupled resonant wireless energy transmission system is significantly larger than its transmission distance, the system is considered to be in a quasi-static state. In such cases, the resonant coil of the system can be approximated via a magnetic dipole model [68]. Figure 8 shows a model of an inductively coupled circuit between two coils and a metamaterial plate.…”

Section: Magnetic Dipole Coupling Theorymentioning

confidence: 99%

A Review of Metamaterials in Wireless Power Transfer

Rong,

Yan,

et al. 2023

Materials

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Wireless power transfer (WPT) is a technology that enables energy transmission without physical contact, utilizing magnetic and electric fields as soft media. While WPT has numerous applications, the increasing power transfer distance often results in a decrease in transmission efficiency, as well as the urgent need for addressing safety concerns. Metamaterials offer a promising way for improving efficiency and reducing the flux density in WPT systems. This paper provides an overview of the current status and technical challenges of metamaterial-based WPT systems. The basic principles of magnetic coupling resonant wireless power transfer (MCR-WPT) are presented, followed by a detailed description of the metamaterial design theory and its application in WPT. The paper then reviews the metamaterial-based wireless energy transmission system from three perspectives: transmission efficiency, misalignment tolerance, and electromagnetic shielding. Finally, the paper summarizes the development trends and technical challenges of metamaterial-based WPT systems.

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Section: Magnetic Dipole Coupling Theorymentioning

confidence: 99%