A Wireless Power and Data Transfer System for Medical Implants Using a Miniaturized Inductive Link With Frequency-Splitting Enhancement

Abstract

This article presents an enhanced-frequency- splitting-based wireless power and data transfer (EFS-WPDT) system that simultaneously delivers power and forward data over a compact inductive link. For data transmission, the proposed system employs frequency-shift keying (FSK) based on frequency-splitting enhancement (FSE), which is enabled by dynamic link-load isolation (LLI) and time-interleaved LC resonance. This approach e ffectively addresses the conventional tradeoffs among power delivered to t