System and method for electromagnetic oven heating energy control using active and passive elements

摘要

A selective heating device comprises a chamber configured to contain a target to be at least partially heated, an active electromagnetic (EM) element to generate an electromagnetic field in the chamber and a passive EM element in the chamber. The passive EM element is capable of electromagnetically coupling to the active element. The active EM element and passive EM element are controllable to selectively heat a portion of the target.