WIRELESS ENERGY TRANSFER
First Claim
Patent Images
1. An energy transferring system, comprising:
- a source-side resonator for receiving an energy, wherein the source-side resonator has a first resonant frequency;
an intermediate resonant module having a second resonant frequency substantially the same with the first resonant frequency, wherein the energy on the source-side resonator is coupled to the intermediate resonant module, such that non-radiative energy transfer is performed between the source-side resonator and the intermediate resonant module, and the coupling between the source-side resonator and the intermediate resonant module corresponds to a first coupling coefficient; and
a device-side resonator having a third resonant frequency substantially the same with the second resonant frequency, wherein the energy coupled to the intermediate resonant module is further coupled to the device-side resonator, such that non-radiative energy transfer is performed between the intermediate resonant module and the device-side resonator, and the coupling between the intermediate resonant module and the device-side resonator corresponds to a second coupling coefficient;
wherein the coupling between the source-side resonator and the device-side resonator corresponds to a third coupling coefficient.
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Abstract
Disclosed is an apparatus for use in wireless energy transfer, which includes a first resonator structure configured to transfer energy non-radiatively with a second resonator structure over a distance greater than a characteristic size of the second resonator structure. The non-radiative energy transfer is mediated by a coupling of a resonant field evanescent tail of the first resonator structure and a resonant field evanescent tail of the second resonator structure.
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Citations
28 Claims
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1. An energy transferring system, comprising:
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a source-side resonator for receiving an energy, wherein the source-side resonator has a first resonant frequency; an intermediate resonant module having a second resonant frequency substantially the same with the first resonant frequency, wherein the energy on the source-side resonator is coupled to the intermediate resonant module, such that non-radiative energy transfer is performed between the source-side resonator and the intermediate resonant module, and the coupling between the source-side resonator and the intermediate resonant module corresponds to a first coupling coefficient; and a device-side resonator having a third resonant frequency substantially the same with the second resonant frequency, wherein the energy coupled to the intermediate resonant module is further coupled to the device-side resonator, such that non-radiative energy transfer is performed between the intermediate resonant module and the device-side resonator, and the coupling between the intermediate resonant module and the device-side resonator corresponds to a second coupling coefficient; wherein the coupling between the source-side resonator and the device-side resonator corresponds to a third coupling coefficient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 18, 19)
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15. An energy transferring method, comprising:
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providing a source-side resonator to receive an energy; providing an intermediate resonant module, wherein the energy on the source-side resonator is coupled to the intermediate resonant module, such that non-radiative energy transfer is performed between the source-side resonator and the intermediate resonant module, and the coupling between the source-side resonator and the intermediate resonant module corresponds to a first coupling coefficient; and providing the energy for coupling a device-side resonator to the intermediate resonant module, wherein the energy is further coupled to the device-side resonator, such that non-radiative energy transfer is performed between the intermediate resonant module and the device-side resonator, and the coupling between the intermediate resonant module and the device-side resonator corresponds to a second coupling coefficient, wherein; the coupling between the source-side resonator and the device-side resonator corresponds to a third coupling coefficient. - View Dependent Claims (16, 17, 20, 21)
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22. An energy transferring system, comprising:
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a first resonant object for receiving an energy; a second resonant object; a third resonant object configured to transfer energy with one or more of the first and second resonator objects, wherein energy in the first resonant object is coupled to the third resonant object such that non-radiative energy transfer is performed between the first resonant object and the third resonant object and the energy coupled to the third resonant object is further coupled to the second resonant object such that non-radiative energy transfer is performed between the third resonant object and the second resonant object, the first, second, and third resonant objects having the same resonant frequency, the coupling between the first resonator object and the third resonator object corresponds to a first coupling constant, the coupling between the third resonant object and the second resonant object corresponds to a second coupling constant, and the coupling between the first resonant object and the third resonant object corresponds to a third coupling constant. - View Dependent Claims (23, 24, 25)
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26. An energy transferring method, comprising:
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providing a first resonant object to receive an energy; providing a second resonant object; and providing the third resonant object, wherein the energy in the first resonant object is coupled to the third resonant object, such that non-radiative energy transfer is performed between the first resonant object and the third resonant object and energy in the third resonant object is further coupled to the second resonant object, such that non-radiative energy transfer is performed between the third resonant object and the second resonant object, wherein the coupling between the first resonant object and the third resonant object corresponds to a first coupling constant, the coupling between the third resonant object and the second resonant object corresponds to a second coupling constant, and the coupling between the first resonant object and the third resonant object corresponds to a third coupling constant. - View Dependent Claims (27, 28)
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Specification