Immunity of a pacemaker with a Wireless Power Transfer coil

The application of the Wireless Power Transfer (WPT) technology to a pacemaker for recharging its battery requires the pacemaker to be equipped with a secondary WPT coil. This coil acts as a receiving loop antenna for external electromagnetic fields. Thus, the induced current and voltage can be a source of EMI for the pacemaker circuitry. Aim of this study is to investigate how to reduce these induced effects by choosing an adequate design of the WPT secondary coil.