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Abstract

The invention provides a dielectric heating device. The device includes a plurality of electrically conductive side walls which are electrically interconnected in use and arranged in series to define a heating cavity. At least one pair of adjacent side walls has its walls inclined to each other at a corner having an included angle selected from the group consisting of acute angles and obtuse angles. At least one electromagnetic power source capable of emitting electromagnetic radiation suitable for dielectric heating is arranged to feed waves of such radiation into the cavity with circular polarization of the waves, to cause the cavity to act as a multimode resonant heating cavity.

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First Claim