Beaming Power to the Brain: Phased-Array Wireless Power and Data for Implants

Implantable medical devices hold significant promise for the treatment of neurological conditions, yet their long-term viability depends on a fundamental challenge: delivering power safely and reliably to small, deeply implanted devices that are subject to continuous movement in a freely moving animal. Conventional wireless charging methods, which require close and fixed alignment, are poorly suited to these conditions. This talk presents a wireless power transfer approach that directs electromagnetic energy toward an implant and dynamically adjusts to maintain delivery as the device moves. In contrast to conventional near-field systems, the proposed architecture tracks the implant and continuously realigns the power beam, while the same link simultaneously supports data communication between the implant and external system. The discussion also considers the broader process of advancing such a concept from theoretical formulation to an experimentally validated system, along with its potential applications across medical devices, robotics, and related fields.