| 摘要 |
PROBLEM TO BE SOLVED: To provide a microwave heating device having a practical structure which enables local intensive heating while performing the uniform heating of the whole heating chamber with a wide width. SOLUTION: The microwave heating device comprises a microwave generating means 32, a waveguide 33, a heating chamber 34 having a shape with a width direction dimension larger than a depth direction dimension, a non-rotating mounting table 35 to mount a heating object, a heating object housing space 36, an antenna space 37, rotary antennas 38, 39 arranged in symmetrical locations in the width direction in the heating chamber in order to radiate the microwave in the heating chamber, drive means 40, 41 of the rotary antennas, and a control means 411 to control directions of the rotary antennas by controlling the drive means. The control means 411 controls a portion having the strong radiation directivity of at least one rotary antenna to a prescribed direction to heat intensively a specified heating object. Thereby, a practical structure is obtained in which local intensive heating is conducted while also enabling the uniform heating of the whole heating chamber. COPYRIGHT: (C)2008,JPO&INPIT
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