Title :
Effect of nearby human body on WPT system
Author :
Yuan, Qiaowei ; Chen, Qiang ; Sawaya, Kunio
Author_Institution :
Sendai Nat. Coll. of Technol., Sendai, Japan
Abstract :
Based on the transmitting efficiency of WPT system calculated by using s-parameters when the WPT system is equivalent to a 2-ports lossy network [1], the effects of human body on the transmitting efficiency of WPT system with three different transmitting/receiving elements are further investigated in this paper. It is found that the WPT system using the element consisting of loop and a parasitic helical, resonant element in other words, can prevent the reduction in the transmitting efficiency from the human body, thus it is an efficient and safe choice to us a loop with a parasitic helical as the transmitting/receiving element.
Keywords :
S-parameters; loop antennas; microwave power transmission; receiving antennas; resonance; transmitting antennas; 2-ports lossy network; WPT system; loop element; nearby human body; parasitic helical element; receiving elements; resonant element; s-parameters; transmitting efficiency; transmitting elements; Biological system modeling; Impedance; Muscles; Power transmission; Resonant frequency; Scattering parameters; Wireless communication;
Conference_Titel :
Antennas and Propagation (EUCAP), Proceedings of the 5th European Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4577-0250-1
