Theoretical Study on Heating Mechanisms of Interaction between Microwave and Materials

Microwave techniques are nowadays widely used throughout wireless communication, material processing and material permittivity measuring.The major advantages of microwave used for material processing are rapid heat transfer,volumetric heating and selective heating,pollution-free environment and automatic control.The heating mechanisms on interaction of microwave with materials is discussed in this paper.For non-Debye relaxation materials,a model is deduced to calculate the dielectric loss.More importantly,the model can even be used to explain the transient process occurring under microwave irradiation.