WPT Systems on Ferromagnetic Substrates with Enhanced Performance
Conference
Barreto, J, Kaddour, AS, Georgakopoulos, SV. (2020). WPT Systems on Ferromagnetic Substrates with Enhanced Performance
. 1337-1338. 10.1109/IEEECONF35879.2020.9330258
Barreto, J, Kaddour, AS, Georgakopoulos, SV. (2020). WPT Systems on Ferromagnetic Substrates with Enhanced Performance
. 1337-1338. 10.1109/IEEECONF35879.2020.9330258
In this paper, ferromagnetic materials are used to improve the performance of Wireless Power Transfer (WPT) systems. A Conformal Strongly Coupled Magnetic Resonance (CSCMR) system is miniaturized by placing ferrite sheets under its transmitting (TX) and receiving (RX) elements. When the ferrite substrates are used, the operating frequency of the CSCMR system shifts from 40 MHz (without the ferrites) to 32 MHz This reduction of the operating frequency is achieved while maintaining the same dimensions, thereby miniaturizing the WPT system. Additionally, the effects of a metallic surface were also investigated. Without the ferrite substrates, the Power Transfer Efficiency (PTE) of the system is approximately zero, whereas with the ferrite substrates the system is able to provide a maximum PTE of 62.9%. These results show that ferromagnetic materials can be used to enhance the performance of CSCMR systems for multiple applications.
