Influence of Ridge Groove Structure on Local Field Distribution in Microwave Reaction Cavity

Uneven energy distribution and “hotspot” phenomenon are bottlenecks restricting the development of the microwave heating industry. The formation of high-intensity electric field aggregation areas can be effectively repressed by optimizing the reaction cavity structures. With a box-type microwave reaction cavity as the study object and an external ridge groove as the induction device, the influences of the structural parameters of different devices on the microwave local field distribution were analytically explored through the simulation technology, and a “hotspot” early warning method was proposed. This study provides a reference for inhibiting the “hotspot” phenomenon on microwave fields and optimally designing microwave reactors.