Coupled Simulation of Electromagnetic and Thermal Fields for Multi-Source Microwave Oven

摘要

For industrial application, the multi-source excitation has been wildly used to generate enough output power, but because the position of the feed port may be relatively close, the coupling phenomenon may occur between magnetrons that will affect the output power, efficiency, and reliability of magnetron. Using the coupled simulation for high frequency electromagnetic and temperature fields, the efficiency optimization and homogeneity improvement of a four-tube microwave oven have been designed. HFSS is widely used in high frequency electromagnetic simulation [1]-[2], and we also employ HFSS to conduct electromagnetic simulation of microwave oven models. The simulation results are accurate enough to design a microwave oven. The feasibility of HFSS+ANSYS simulation has been verified in Sabbagh's report [3].