Design and Analysis of High-Frequency Resonant Circuits for Wireless Power Transfer

Abstract

Wireless Power Transfer (WPT) has transformed the way energy is transmitted, especially in consumer electronics, electric vehicles, and biomedical implants. At the core of efficient WPT systems lie high-frequency resonant circuits, which maximize energy transfer over mid-range distances. This paper investigates the design principles and analytical methods for high frequency resonant circuits in WPT systems, particularly focusing on Series, Parallel, and Series-Parallel topologies. The study involves modeling, frequency domain analysis, and quality factor assessment, impedance matching, and coil design considerations. Simulation results using tools like LTspice and HFSS validate the theoretical analysis. The paper also explores challenges such as thermal stability, frequency drift, and electromagnetic interference, and proposes mitigation techniques. The overall objective is to provide a comprehensive understanding of high-frequency resonant circuits essential for the optimal design of future WPT applications.

Keywords: Wireless Power Transfer (WPT), Resonant Circuits, High Frequency Design, Series-Parallel Topology, Magnetic Coupling, Impedance Matching, Quality Factor