Study of wireless power systems with two-dimensionally moving receivers

The advantages of wirelessly powering electronic devices are numerous, but the technology is generally not being applied to moving devices because existing solutions are complex or offer poor efficiency. This paper describes a wireless power system for receivers moving between uniformly distributed points in a rectangular area. The proposed solution consists of a single small wireless power transmitter, offering both low complexity and high efficiency. Simulations were performed to determine the optimal transmitter location, shape and transmitted power. Also a statistical analysis of the receiver buffer size was performed. As a result of these simulations, a design flow was proposed that permits the use of existing technologies for the considered setup.