Title :
Coupling coefficient of spiral resonators used for wireless power transfer
Author :
Awai, Ikuo ; Zhang, Yanjun ; Komori, Takuya ; Ishizaki, Toshio
Author_Institution :
Dept. of Electron. & Inf., Ryukoku Univ., Otsu, Japan
Abstract :
Coupling coefficient between two spiral resonators used for wireless power transfer is studied. It is pointed out that spiral resonators have different coupling coefficient corresponding to the mirror co-directional or inversely wound configurations alignment. The reason is clarified by calculating the coupling coefficient separately as the electric and magnetic parts. Helical resonators are also studied for comparison showing negligible difference between the two configurations.
Keywords :
electromagnetic coupling; microwave power transmission; resonators; coupling coefficient; electric part; helical resonator; inversely wound configuration alignment; magnetic part; mirror codirectional configuration; spiral resonator; wireless power transfer; Windings;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2010 Asia-Pacific
Conference_Location :
Yokohama
Print_ISBN :
978-1-4244-7590-2
Electronic_ISBN :
978-1-902339-22-2
