Energous Corporation
Electronic Device With Antenna Elements That Follow Meandering Patterns For Receiving Wireless Power From A Near-Field Antenna

Abstract:

Systems and methods for receiving near-field wireless power at an electronic device. An electronic device includes a receiver with one or more receiving antenna elements formed by respective conductive lines in a meandering pattern. Each receiving antenna element is configured to receive near-field radio-frequency signals radiated from a transmitting antenna element of a near-field power transmitter. The receiving antenna elements are configured to receive the near-field radio-frequency signals radiated from the transmitting antenna element of the near-field power transmitter when the electronic device is on a surface of the near-field power transmitter, and the transmitting antenna element is formed by respective conductive lines in a meandering pattern. The transmitting antenna element is selectively activated from among a plurality of available transmitting antenna elements of the near-field transmitter. A power-harvesting circuit of the receiver is configured to convert the near-field radio-frequency signals into usable power for the electronic device.