Wireless energy transfer, including interference enhancement

H - Electricity – 02 – J

Patent

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Details

H02J 17/00 (2006.01) H01F 5/00 (2006.01) H01Q 7/00 (2006.01)

Patent

CA 2724341

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, [insert formula] and [insert formula], 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.

L'invention concerne un appareil destiné à être utilisé dans un transfert d'énergie sans fil, qui comprend une première structure de résonateur configurée pour un transfert d'énergie avec une seconde structure de résonateur sur une distance D supérieure à des dimensions caractéristiques, [insérer formule] et [insérer formule],  des première et seconde structures de résonateur. Un générateur de courant est couplé à la première structure et configuré pour exciter la première structure de résonateur ou la seconde structure de résonateur à une fréquence angulaire éloignée des fréquences angulaires de résonance et décalée vers une fréquence correspondant à un mode impair normal pour les structures de résonateur afin de réduire le rayonnement provenant des structures de résonateur par une interférence destructrice de champ lointain.

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