WIRELESS ENERGY TRANSMISSION USING NEAR-FIELD ENERGY
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United States of America Patent
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Issued Date -
Nov 1, 2012
app pub date -
Oct 19, 2011
filing date -
Apr 28, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Techniques are described for wireless energy transmission and projecting magnetic fields over relatively long near-fields. In one example, a device for transmitting near-field energy comprises at least one source that generates a radiofrequency (RF) signal, an antenna that generates near-field signals from the RF signal, and a plurality of sub-wavelength sized elements that form a lens in communication with the antenna that captures the near-field signals, generates near-field energy, and re-directs the near-field energy toward an object in the near-field of the lens, where the sub-wavelength sized elements are disposed about the antenna.
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