Abstract: With the wide application of high -power magnetron, people are paying much attention to the heat -dissipation performance of high -power magnetron, because the heat -dissipation performance of magnetron directly affects the lifespan and stability of magnetron. Referring to the working characteristics of air -cooled magnetron, we optimize the existing magnetron technology in this paper. Firstly we decide the designing direction of analysis and optimization theoretically, and then simulate it by the software Icepak, and obtain a feasible plan. Samples are made to test the actual heat -dissipation performance. We find that increasing the superficial area of the heat -dissipation system of the magnetron and improving the Reynolds number of the heat-dissipation system could obviously improve the heat- dissipation performance.

Key words: heat dispersing, magnetron, icepak