Apparatus for heating with a pulsating electromagnetic near field
AssigneeAntrad System AB
InventorLars Sven Erling Ekemar
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Abstract
An apparatus that enables a homogenous heating and an efficient measurement of organic as well as a mixture of organic and inorganic materials. The apparatus is characterized in that a load, placed in a cavity with very small dimensions in relation to the wavelength in vacuum at applied frequency, is heated by a generated pulsating near field.
Claims16
An apparatus for heating dielectric materials with electromagnetic radiation within the frequency range of 50 kHz-299 MHz with one or more antennas placed in a cavity characterized in that the antenna/antennas enclosed by the cavity in joint action with cavity walls that enclose a load space for heating a load together generate pulsating electric and magnetic fields in a load and the longest side of the cavity is delimited in such way that the distance between a central point in the cavity defined by the combined surfaces of the antenna, and any other point in the cavity is less than half a wavelength in vacuum of any wavelength in vacuum conditioned by applied frequency.
Dependencies are inferred from the claim text.