Wireless energy transfer using conducting surfaces to shape field and improve K

US8461722B2 · kind B2 · utility

Assignee

• WiTricity Corporation · US

Inventors

• Andre B. Kurs · Sharon, US
• Andrew J. Campanella · Waltham, US
• Konrad J. Kulikowski · North Andover, US
• Katherine L. Hall · Westford, US
• Marin Soljacic · Belmont, US
• Morris P. Kesler · Bedford, US
• Aristeidis Karalis · Boston, US

Key dates

• Filing date: Dec 29, 2009
• Grant date: Jun 11, 2013
• Expiry date: Apr 11, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y04S30/14
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

In embodiments of the present invention improved capabilities are described for a method and system comprising a source resonator optionally coupled to an energy source and a second resonator located a distance from the source resonator, where the source resonator and the second resonator are coupled to provide near-field wireless energy transfer among the source resonator and the second resonator, and where the field of at least one of the source resonator and the second resonator is shaped using conducting surfaces to increase the coupling factor among the resonators.