Abstract: Since material has different dielectric constants in different phases, microwave propagation and reflection properties become variant. The distribution of power density is related to the properties. By combining COMSOL simulation and experiments, the effect of freeze on uniformity microwave heating of potatoes is studied, and good agreement can be seen between the experimental and simulated results. From simulation and experiments, properly freeze can improve the uniformity of microwave heating. This research also works for microwave target heating.
