Power management and power conversion for implantable stimulators or sensors

Researcher in Prof. Ada Poon's laboratory have developed a way to increase the efficiency of rectification and power management of wirelessly powered implants that are operated in the electromagnetically weakly coupled regime. The device employs a coil with a characteristic dimension in the mm-range with a rectifier, and is typically housed in a RF transparent case. The device operates in the high MHz to low GHz range, and uses a rectifier to convert the AC signal to a DC signal.