小型化行波管放大器热仿真分析及优化设计

介绍了小型化行波管放大器的热仿真分析和优化设计方法。首先对行波管放大器的热损耗进行了分析，然后依据热力学相关理论，基于Ansys Icepak软件，对行波管放大器进行了建模和仿真分析。针对小型化行波管放大器的特点，分别进行了水冷板的热优化设计和慢波结构的热优化设计，在此基础上进行了水冷板和慢波结构的综合优化设计。最后进行了实验验证，实验结果与仿真结果相符，行波管放大器无论是整体温度还是局部温度分布特性，均得到了明显改善。

Thermal simulation analysis and optimization design of miniaturized traveling wave tube amplifier

This paper introduces the thermal simulation analysis and optimization design method of the miniaturized traveling wave tube (TWT) amplifier. Firstly, the thermal loss of TWT is analyzed. Then, based on the thermodynamic theory and ANSYS Icepak software, the TWT amplifier is modeled and simulated. According to the characteristics of the miniaturized TWT, the thermal optimization design of the water-cooled plate and the slow-wave structure are carried out respectively. On this basis, the comprehensive optimization design of the water-cooled plate and the slow-wave structure is carried out. Finally, the experimental verification is excuted. The experimental results are in agreement with the simulation results. The overall and local temperature distribution characteristics of the TWT amplifier have been significantly improved.