Wireless power transmission
First Claim
Patent Images
1. A system for power transmission, comprising:
- a receiver including a receiver antenna; and
an RF power transmitter including a transmitter antenna, wherein the RF power transmitter transmits RF power, the RF power includes multiple polarization components, and the receiver converts the RF power to direct current.
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Accused Products
Abstract
Disclosed is a system for power transmission. The system includes a receiver having a receiver antenna. An RF power transmitter includes a transmitter antenna. The RF power transmitter transmits RF power. The RF power includes multiple polarization components. The receiver converts the RF power to direct current. Also disclosed is an antenna for an RF power transmission system. The antenna includes at least two antenna elements. Alternating the radiation between the at least two antenna elements produces a power transmission having components in two polarizations. Additionally disclosed is a transmitter, a receiver and a method for power transmission.
329 Citations
35 Claims
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1. A system for power transmission, comprising:
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a receiver including a receiver antenna; and
an RF power transmitter including a transmitter antenna, wherein the RF power transmitter transmits RF power, the RF power includes multiple polarization components, and the receiver converts the RF power to direct current. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 27, 30, 31, 32, 33, 34, 35)
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- 13. An antenna for an RF power transmission system, comprising at least two antenna elements, wherein alternating the radiation between the at least two antenna elements produces a power transmission having components in at least two polarizations.
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21. A system for power transmission, comprising:
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a transmitter for wirelessly transmitting energy; and
a receiver having an energy harvester, wherein the energy harvester receives the energy, the energy harvester converts the energy into a direct current, and when the receiver is within a space defined by a radiation pattern of the transmitter, the direct current is greater than or equal to a predetermined level regardless of a polarization of the receiver with respect to the transmitted energy. - View Dependent Claims (22)
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23. A method for power transmission comprising the steps of:
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transmitting wirelessly energy from a transmitter;
receiving the energy from the transmitter at a receiver having an energy harvester; and
converting the energy received by the receiver with the energy harvester into a direct current, when the receiver is within a space defined by a radiation pattern of the transmitter, the direct current is greater than or equal to a predetermined level regardless of the polarization of the receiver with respect to the transmitted energy.
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24. A transmitter for power transmission to a receiver having an energy harvester which receives the power transmission from the transmitter and converts the energy into direct current comprising:
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a power source; and
at least one antenna in communication with a power source from which a radiation pattern emanates so that when the receiver is within a space defined by the radiation pattern, then the direct current from the energy harvester is greater than or equal to a predetermined level regardless of the polarization of the receiver with respect to the transmitted energy.
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25. A receiver which receives energy from a transmitter which transmits the energy wirelessly in a space defined by a radiation pattern of the transmitter comprising:
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at least one antenna which receives the wirelessly transmitted energy;
and an energy harvester in communication with the antenna which receives the energy and converts the energy into a direct current, and when the receiver is within the space defined by the radiation pattern of the transmitter, the direct current is greater than or equal to a predetermined level regardless of a polarization of the receiver with respect to the transmitted energy.
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26. A system for power transmission, comprising:
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means for wirelessly transmitting energy; and
means for receiving the wirelessly transmitted energy and converting the energy into a direct current, and when the receiving means is within a space defined by a radiation pattern of the transmitting means, the direct current is greater than or equal to a predetermined level regardless of a polarization of the receiving means with respect to the transmitted energy.
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Specification