Wireless energy transfer using planar capacitively loaded conducting loop resonators

US8035255B2 · kind B2 · utility

Assignee

• WiTricity Corporation · US

Inventors

• Andre B. Kurs · Sharon, US
• Aristeidis Karalis · Boston, US
• Katherine L. Hall · Westford, US
• Morris P. Kesler · Bedford, US
• Marin Soljacic · Belmont, US

Key dates

• Filing date: Nov 6, 2009
• Grant date: Oct 11, 2011
• Expiry date: Nov 6, 2029

Classification

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

Abstract

Described herein are improved capabilities for a source resonator having a Q-factor Q1>100 and a characteristic size x1 coupled to an energy source, and a second resonator having a Q-factor Q2>100 and a characteristic size x2 coupled to an energy drain located a distance D from the source resonator, where the source resonator and the second resonator are coupled to exchange energy wirelessly among the source resonator and the second resonator.