Leland Stanford Junior University

Xiaofang Yu

Shanhui Fan

Sid Assawaworrarit

Torbjorn Skauli

Sunil Sandhu

Sven Beiker

Richard E Sassoon

Various embodiments are directed to apparatuses and methods related to source circuitry that provide power to other circuitry. The source circuitry including gain circuitry and a source resonator. The gain circuitry provide powers to the source resonator with a gain that is dependent on a coupling rate between the source circuitry and other circuitry. The source resonator is coupled to the gain circuitry and generates a magnetic field in response to the power. The source circuitry is configured and arranged to wirelessly transfer the power to the other circuitry via the magnetic field.

Methods and apparatuses for wireless transfer of power

Electromagnetic energy transfer is facilitated. In accordance with an example embodiment, a first resonator transmits electromagnetic energy using an electromagnetic wave, based on frequency matching and alignment of an electromagnetic field with a second resonator within a distance of one wavelength of the electromagnetic wave from the first resonator. An electromagnetic energy reflector adjacent the first resonator redirects reflected portions of the electromagnetic wave back towards the first resonator.

Wireless energy transfer

Growing community of inventors

San Mateo, CA, United States of America

Xiaofang Yu