Return coupled wireless power transmission
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United States of America Patent
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Jan 30, 2018
Issued Date -
N/A
app pub date -
Sep 9, 2015
filing date -
Sep 9, 2015
priority date (Note) -
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Abstract
Aspects of return coupled wireless power transmission systems are described. In one embodiment, a system includes a guided surface waveguide probe including a charge terminal elevated at a height over a lossy conducting medium, a ground stake, and a feed network. The system further includes a conductor coupled to the ground stake that extends a distance away from the guided surface waveguide probe across the lossy conducting medium, and at least one guided surface wave receivers including a ground connection coupled to the conductor. The conductor can help to provide additional efficiency in power transfer between the guided surface waveguide probe and the guided surface wave receivers, especially when the operating frequency of the probe is in the medium, high, or very high frequency ranges.
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