The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 13, 2011
Filed:
May. 14, 2009
Aristeidis Karalis, Boston, MA (US);
Rafif E. Hamam, Cambridge, MA (US);
John D. Joannopoulos, Belmont, MA (US);
Marin Soljacic, Belmont, MA (US);
Aristeidis Karalis, Boston, MA (US);
Rafif E. Hamam, Cambridge, MA (US);
John D. Joannopoulos, Belmont, MA (US);
Marin Soljacic, Belmont, MA (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Abstract
Disclosed is an apparatus for use in wireless energy transfer, which includes a first resonator structure configured for energy transfer with a second resonator structure over a distance D larger than characteristic sizes, Land L, of the first and second resonator structures. A power generator is coupled to the first structure and configured to drive the first resonator structure or the second resonator structure at an angular frequency away from the resonance angular frequencies and shifted towards a frequency corresponding to an odd normal mode for the resonator structures to reduce radiation from the resonator structures by destructive far-field interference.