A Sustainable RF-Based Wireless Power Transfer System for Medical Applications

This research investigates the transformative capabilities of wireless power transfer (WPT) in the context of medical devices. It presents several advantages, including increased convenience, diminished patient discomfort, and prolonged battery longevity when compared to conventional wired systems. By leveraging ambient RF signals, WPT eliminates the battery or cable demand, strengthening safety measures for patients and device reliability. The paper introduces a non-linear diode model designed to accurately simulate diode behavior, determines the input impedance for optimal matching, and develops a network that aligns impedance to enhance power transfer efficiency. Simulations assess the circuit's performance, with an RF-to-DC conversion effectiveness of 88.109%. The integrated rectifier, when combined with the antenna, can convert electromagnetic waves into DC power. This has promising applications in pace-makers, neurostimulators, and drug delivery systems, potentially revolutionizing energy solutions for implantable medical devices. efficiently.