| 摘要 |
PROBLEM TO BE SOLVED: To provide a microwave heating device capable of uniformly heating and drying by uniformly distributing an electric field of a waveguide type microwave heating oven of the microwave heating device when heating and drying a paper and a film having a wide width or simultaneously heating and drying numerous thread-like objects. SOLUTION: In the microwave heating device using a waveguide at a microwave frequency with a range of 300 MHz to 30 GHz, the microwave heating device is provided with a microwave oscillator 1, an isolator 2, a phase shifter 3, the waveguide type microwave heating oven 4, and a dummy load 5. A phase is changed by continuously shifting the phase shifter 3 in order to move a position of an electric field, and the electric field in the waveguide is set up to be uniform. Calorific value P in an object to be heated becomes uniform by making the electric field uniform, and uniform heating can be attained. COPYRIGHT: (C)2009,JPO&INPIT
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