| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a microwave heating device uniformly and efficiently irradiating a heating object with microwave without using a turnable mechanism. Ž<P>SOLUTION: In this applicator 10, the heating object 12 such as a foodstuff is placed on the top face of a metal table 11 in a minimum capacity. A conically cut fluororesin spacer 13 is disposed in the upper part of the object to be heated 12. Microwaves synthesized in a T-type waveguide 1 are radiated to the heating object 12 through the conically cut fluororesin spacer 13. Thus, the synthesized microwave transmitted from the T-type waveguide 1 while having an electric field difference of 90° is refracted by wavelength-contracting action of the fluororesin spacer 13, and is concentrically and uniformly radiated to the area of the heating object 12. Accordingly, the heating object 12 can be uniformly and efficiently heated without providing a turntable. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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