Apparatus for wireless power transmission using high Q low frequency near magnetic field resonator
First Claim
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1. A wireless power transmission apparatus, comprising:
- a high Q magnetic field resonator configured to comprise a shunt inductor on a transmission line to have characteristics of a metamaterial, and configured to comprise one of a via in a substrate and a slot in the substrate as the shunt inductor to increase a quality factor (Q) value of the resonator,wherein the metamaterial comprises an epsilon-negative (ENG) metamaterial, andwherein, in the resonator to implement the characteristics of the ENG metamaterial, the Q value is increased by forming the via in the substrate and the shunt inductor is formed by forming the slot, which has a meandering shape, in the substrate to lengthen a path of current flow.
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Abstract
An apparatus for wireless power transmission is disclosed. According to an exemplary aspect, the wireless power transmission apparatus includes a high Q low frequency near magnetic field resonator having characteristics of a metamaterial. Accordingly, manufacturing of a compact power supply capable of wirelessly supplying power to mobile communication terminals or multimedia terminals is possible. By using a zeroth-order resonator with a DNG or ENG structure, a small-sized power supply with a simple configuration may be manufactured.
25 Citations
18 Claims
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1. A wireless power transmission apparatus, comprising:
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a high Q magnetic field resonator configured to comprise a shunt inductor on a transmission line to have characteristics of a metamaterial, and configured to comprise one of a via in a substrate and a slot in the substrate as the shunt inductor to increase a quality factor (Q) value of the resonator, wherein the metamaterial comprises an epsilon-negative (ENG) metamaterial, and wherein, in the resonator to implement the characteristics of the ENG metamaterial, the Q value is increased by forming the via in the substrate and the shunt inductor is formed by forming the slot, which has a meandering shape, in the substrate to lengthen a path of current flow. - View Dependent Claims (2, 3, 4, 5)
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6. A mobile device having a wireless power transmission apparatus, comprising:
a high Q magnetic field resonator configured to comprise a shunt inductor on a transmission line to have characteristics of a metamaterial, and configured to comprise one of a via in a substrate and a slot in the substrate as the shunt inductor to increase a quality factor (Q) value of the resonator. - View Dependent Claims (7, 8, 9)
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10. A wireless power transmission method comprising:
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configuring a resonance circuit to comprise a shunt inductor on a transmission line to implement characteristics of epsilon-negative (ENG) metamaterial; forming one of a via in a substrate and a slot in the substrate as the shunt inductor to increase a quality factor (Q) value of the resonance circuit; and forming the shunt inductor by forming a slot, which has a meandering shape, in a substrate to lengthen a path of current flow. - View Dependent Claims (11, 12, 13)
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14. A wireless power transmission method, comprising:
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configuring a resonance circuit to comprise a series capacitor and a shunt inductor on a transmission line to implement characteristics of double-negative (DNG) metamaterial; and forming one of a via in a substrate and a slot, which has a meandering shape, in the substrate as the shunt inductor to increase a quality factor (Q) value of the resonance circuit. - View Dependent Claims (15, 16, 17, 18)
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Specification