大平均功率前向波放大管散热分析  

Thermal Analysis of High Average Power Crossed Field Amplifiers

作　　者：孙涵[1] 杨金生[1] 

机构地区：[1]北京真空电子技术研究所,北京100015

出　　处：《真空电子技术》2016年第6期27-30,共4页Vacuum Electronics

摘　　要：本文介绍了一种S波段大平均功率前向波放大管的受热情况,首先通过整管效率和耗散功率的理论计算,简单分析了慢波结构的热分布情况,然后建立了整管的热仿真模型,并在ANSYS的流体模块中,模拟了流体的流动特性,对如何用ANSYS进行流固耦合的换热模拟进行说明。通过软件模拟对流换热过程,得到了输出功率20kW时慢波线的温度分布,经过结果分析,验证了此前向波放大管实现输出20kW平均功率的可行性。This paper presents the thermal analysis of an S-band crossed field amplifier. First, the heat distribution of slow wave structure was simply analyzed through the theoretical calculation of whole effi- ciency and power dissipation. Then the thermal simulation model of the whole tube was established, and the fluid characteristic was simulated in ANSYS module. The heat transfer simulation of fluid-solid coupling by use of ANSYS was described. The convective heat transfer process was simulated and the temperature gradient of the slow wave circuit with the output power of 20 kW was obtained. The results analysis verifies the feasibility of the crossed field amplifiers with an average output power of 20 kW.

关 键 词：正交场放大器 热分析 对流换热 

分 类 号：TN127[电子电信—物理电子学]