A Wearable Metasurface for Efficient, Omnidirectional Wireless Power Transfer

Wireless charging at a distance can be time consuming and inefficient in real-world applications, including for embedded devices such as electronic medical implants. University of Illinois researchers have developed a metasurface that can redirect magnetic fields to efficiently charge devices that are far from and/or misaligned with a power source. The metasurface is flexible and performs well even when distorted, making it an excellent candidate for mounting on skin or other curved or nonuniform surfaces. This technology can be configured to charge multiple devices and offers an approximately 10x faster charge as compared to state-of-the-art solutions for difficult-to-charge devices.