Mid-distance wireless power transmission for electric truck via microwaves

Various wireless power transmissions (WPT) are applied to charge an electric vehicle (EV). An inductive coupling WPT and resonance coupling WPT are often used. We proposed a WPT via microwave (microwave power transmission; MPT) for the wireless charging of the EV because we consider that merits of the MPT, which are mid or far distance WPT and no coupling between a transmitter and a receiver, are suitable for the WPT for the EV. However, there are some problems which we should solve before its commercialization. One of the problems is antenna and beam forming. In this paper, we describe a suitable beam forming design of the MPT system for an electric truck with genetic algorism.