SMART RF LENSING: EFFICIENT, DYNAMIC AND MOBILE WIRELESS POWER TRANSFER
First Claim
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1. An RF lens comprising:
- a first plurality of radiators adapted to radiate electromagnetic waves to power a device positioned away from the RF lens, wherein each of the plurality of radiators operates at a first frequency, wherein a phase of an electromagnetic wave radiated by each of the plurality of radiators is selected to be determined by a distance between the radiator and the device.
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Abstract
An RF lens includes a multitude of radiators adapted to transmit radio frequency electromagnetic EM waves whose phases are modulated so as to concentrate the radiated power in a small volume of space in order to power an electronic device positioned in that space. Accordingly, the waves emitted by the radiators are caused to interfere constructively at that space. The multitude of radiators are optionally formed in a one-dimensional or two-dimensional array. The electromagnetic waves radiated by the radiators have the same frequency but variable amplitudes.
285 Citations
34 Claims
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1. An RF lens comprising:
a first plurality of radiators adapted to radiate electromagnetic waves to power a device positioned away from the RF lens, wherein each of the plurality of radiators operates at a first frequency, wherein a phase of an electromagnetic wave radiated by each of the plurality of radiators is selected to be determined by a distance between the radiator and the device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of wirelessly powering a device, the method comprising:
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transmitting a plurality of electromagnetic waves having a first frequency from a first plurality of radiators to the device; selecting a phase of each of the first plurality of radiators in accordance with a distance between the radiator and the device; and providing power to the device using the plurality of electromagnetic waves received by the device. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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Specification