A literature survey of wireless power transfer

Over 115 years ago Tesla invented the concept of wireless power transfer. Many industrial applications based on this technology have been developed ever since. This technology is of interest especially where the interconnecting wires are inconvenient, or even impossible. This paper provides a survey that describes the history of wireless power technology. Specifically two types of wireless power transfer, radiative and non- radiative, are studied. Additionally the formation of the first standard (Qi) and other standards are mentioned. Finally, the main challenges and future prediction of this technology are presented too.