Augmentation of the Extraneous Electromagnetic Radiation from Vehicular Wireless Charging Systems by Coupling to Motor Vehicle Characteristic Modes

Abstract

Wireless power transfer (WPT) systems for electric vehicles (EVs) conforming to the SAE J2954 standard operating in the presence of an EV are shown to excite the characteristic modes of the EV, modifying the extraneous electromagnetic field substantially. This can result in non-negligible power radiated in the HF communications bands.