Wireless power transmission apparatus using near field focusing
First Claim
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1. A wireless power transmission apparatus, comprising:
- a source resonator disposed between a substrate and a material and configured to transmit wireless power through a magnetic field to a target apparatus;
the substrate; and
the material, having a High Impedance Surface (HIS) based on a resonance frequency of the source resonator, whereinthe substrate and the material are configured to focus a near field of the magnetic field onto the target apparatus, the magnetic field being radiated in an omni-direction from the source resonator.
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Abstract
A wireless power transmission apparatus using near field focusing is provided. The wireless power transmission apparatus may include a source unit including a source resonator that transmits power wirelessly to a target apparatus, and a near field focusing unit to focus a near field of a magnetic field radiated in an omni-direction from the source resonator onto the target apparatus.
36 Citations
14 Claims
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1. A wireless power transmission apparatus, comprising:
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a source resonator disposed between a substrate and a material and configured to transmit wireless power through a magnetic field to a target apparatus; the substrate; and the material, having a High Impedance Surface (HIS) based on a resonance frequency of the source resonator, wherein the substrate and the material are configured to focus a near field of the magnetic field onto the target apparatus, the magnetic field being radiated in an omni-direction from the source resonator. - View Dependent Claims (2, 3, 4, 5)
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6. A source resonator configured to increase wireless energy transmission efficiency, the source resonator comprising:
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a resonator disposed between a substrate and a material and configured to wirelessly transmit a power signal to a target resonator through a magnetic field; the substrate; and the material that has a High Impedance Surface (HIS) based on a resonance frequency of the source unit, wherein the substrate and the material are configured to focus a near field of the magnetic field in a direction of a target resonator such that incident waves of the power signal that are not travelling in the direction of the target resonator are redirected towards the target resonator. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14)
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Specification