应用ANSYS对同轴磁控管频率稳定度的优化设计

同轴磁控管的频率稳定度越来越受到雷达整机的重视,影响同轴磁控管频率稳定度的因素有多方面的原因,频率热漂移是其中最主要的原因之一。同轴磁控管频率热漂移主要是由其同轴腔决定。本文应用ANSYS对同轴磁控管频率热漂移进行模拟分析,对不同环境温度下同轴谐振腔的电磁场、热场以及结构应力进行了模拟仿真分析。根据分析结果选择和优化结构零部件材料,在模拟仿真达到设计参数要求的基础上进行装管验证,能够缩短产品研制开发时间,减小同轴磁控管的频率温度系数,提升工作频率稳定性。

Optimized Design of Frequency Stability of Coaxial Magnetron by ANSYS

The radar manufacturers attach great importance to the frequency stability of coaxial magnetron. The frequency shift with temperature is the main reason affects the frequency stability of the coaxial magnetron. The frequency temperature shift of coaxial magnetron is mainly determined by its coaxial cavi- ty. In this paper, the frequency temperature shift of coaxial magnetron is simulated by ANSYS. The elec- tromagnetic field, thermal and stress of coaxial resonant cavity at different environmental temperatures are simulated. Based on the analysis results, parts structure and materials could be optimized selected to a- chieve design parameters. The process can reduce product development time and development costs, im- prove frequency stability of an existing product.