Abstract
In microwave heating, interference of transmission wave and reflection wave in a sample has an important meaning. We focus on the high performance of the heating efficiency due to changing the surface structure of the sample. Using the microwave of TE_<10> mode and frequency of 2.45GHz in rectangular waveguide, we have investigated the effect of the only one rectangular concavity surface structure of the material on the characteristics of microwave heating, and have indicated the guideline for the optimization of microwave heating by controlling reflected and transmitted waves. It was found that the only one rectangular concavity surface structure was effective for the high performance of the heating efficiency, by considering the relationship between the mode and the surface structure.
