1. [1] A. Kurs, “Wireless power transfer via strongly coupled magnetic resonances,” Science Express, vol.317, no.5834, pp.83-86, 2007.
2. [2] D. Wageningen and T. Staring, “The Qi wireless power standard,” 14th International Power Electronics and Motion Control Conference, pp.S15-25-S15-32, 2010.
3. [3] E. Strommer, M. Jurvansuu, T. Tuikka, and A. Ylisaukko-oja, “NFC-enabled wireless charging,” 2012 4th International Workshop on Near Field Communication, pp.36-41, March 2012.
4. [4] W. Zheng, X. Pi, X. Zheng, H. Liu, X. Xiao, and C. Peng, “A wireless transmission system based on electromagnetism induction for remote controlled capsule,” Proc. World Automation Congress 2008, pp.1-4, Sept. 2008.
5. [5] Y. Hiraiwa, N. Kikuma, H. Hirayama, and K. Sakakibara, “A consideration on transmission efficiency characteristics of wireless power transmission using proximity coils,” IEICE Technical Report, AP2009-86, Sept. 2009 (in Japanese).