Abstract
A technique for wireless power transfer based on a ridge gap waveguide structure is proposed. This technique is named as "Contact-Less Transmission-Line Wireless Power Transfer, CLTL-WPT". The idea is stemmed from the fact that the ridge gap waveguides are low loss transmission lines which consist of a base and a cover which are not in ohmic contact, thus allowing for an air gap in between. The theoretical efficiency of the proposed wireless power transfer is well compared to the conventional methods. The proposed technique is presented in the context of a high-power wireless charger for electric vehicle applications. An analytical design procedure of the ridge gap waveguide with respect to such an application is shown in details. The presentation is supported with full wave simulations. The main challenges and limitations are addressed.
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