Title :
Optimum load of WPT system analyzed by S-parameters
Author :
Yuan, Qiaowei ; Chen, Qiang ; Li, Jianfeng ; Sawaya, Kunio
Author_Institution :
Sendai Nat. Coll. of Technol., Sendai, Japan
Abstract :
In this paper, the transfer efficiency of WPT system is calculated by using S-parameters if a WPT system is equivalent to a 2-ports lossy network. The optimum source and load impedances are deduced from the conjugated matching conditions for the maximum transfer efficiency of WPT system. The approach is applied to analyze the effects of different transmitting/receiving elements, different load on the transfer efficiency of WPT system. It is found that the method is very general and practical to deal with different WPT systems because the S-parameter can be obtained easily by the measurement or by the numerical simulation.
Keywords :
S-parameters; numerical analysis; radio networks; 2-ports lossy network; S-parameter; WPT system analysis; conjugated matching; load impedance; maximum transfer efficiency; numerical simulation; optimum load; optimum source; transmitting-receiving element; Equations; Impedance; Mathematical model; Resonant frequency; Scattering parameters; Transducers; Wireless communication;
Conference_Titel :
Antennas and Propagation (EUCAP), 2012 6th European Conference on
Conference_Location :
Prague
Print_ISBN :
978-1-4577-0918-0
Electronic_ISBN :
978-1-4577-0919-7
DOI :
10.1109/EuCAP.2012.6206303
