Metal Surface Guided-Wireless Power Transfer System for Portable Applications With Multiple Receivers

Recently, research has been actively conducted to overcome various challenges observed in wireless power transfer (WPT) technology. However, as additional techniques are implemented, the complexity and cost of WPT systems increased. Therefore, there is a need for new method that can shortcomings existing This paper presents metal surface guided-wireless (MSG-WPT) system applications with multiple receivers (Rxs). First, plate-wire propagation enhancer (PWPE) shown improve efficiency (PTE). it not suitable portable receiving systems. Based on our analysis PWPE characteristics, applying an L-section lumped impedance-matching scheme instead portability Rx. A coil-based (CPE), or inductor (CI), increase received if replaces scheme. The MSG-WPT does experience co-alignment issues exist between pair transceivers (TRxs) conventional It also support Rxs while ensuring PTE each Rx relatively unaffected. An electromagnetic simulation proposed performed using high-frequency structure simulator (HFSS), measurements corresponding experimental environment. measured at ?12 dB 4 MHz frequency band. CPE adequately efficient portable, allowing more liberal arrangement compared other