Passive and Active Metasurfaces for Wireless Telemetry Sensors

In this talk, I will discuss both the theoretical design and experimental realization of metasurfaces aimed at enhancing the efficiency and operational range of wireless charging for surgically implanted biosensors. I will delve into several design concepts of metasurfaces including auto-reconfigurability, magnetic mode forming, and Parity-Time (PT) symmetric metasurfaces, which hold the potential for achieving unity efficiency. My discussion will extend to the inverse design principles and their impact on mode optimization. Further, I will explore the practical applications of these theoretical concepts by introducing the metasurface as a wearable device designed to sustainably power a surgically implanted bio-potential sensor, encompassing electromagnetic compatibility with both in vitro and in vivo demonstrations.