Artificial magnetic structures for wireless power transfer
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United States of America Patent
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Dec 12, 2017
Grant Date -
Jan 21, 2016
app pub date -
Jul 21, 2014
filing date -
Jul 21, 2014
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Abstract
A system includes a first resonator coupled to an energy source and a second resonator located a distance from the first resonator and coupled to the first resonator to provide near-field wireless energy transfer between the first resonator and the second resonator. The first resonator and the second resonator are non-radiative structures having a resonant frequency. The system also includes an artificial magnetic conductor (AMC) having the resonant frequency and arranged within the system to shape the near-field of at least one of the first resonator and the second resonator. The AMC includes a layer of unit cells arranged in a periodic pattern enabling the AMC to reflect the near-field. Each unit cell of the AMC includes a plurality of electronic components.
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