摘要
有源相控阵雷达天线阵面中T/R组件的散热对雷达的性能和可靠性有重要影响。本文针对T/R组件内功率放大器体积小、热流密度大的特点,采用热控与结构协同设计技术,将水道集成在天线骨架内,并采用热仿真软件对功率器件的温度分布进行了分析。热仿真结果表明通过控制流量可以实现功率器件的良好散热。针对天线阵面冷板种类多、流量分配难度大的特点,通过在天线框架内合理布置流道,采用压力-流量匹配技术实现了25个冷板流量的精确分配。
Heat dissipation of T/R modules in antenna array has an important effect on performance and reliability of active phased array radar.Aiming at characteristics of power amplifier in T/R module like small volume,high heat flux density,water runner is integrated in antenna framework by using technique of cooperating design thermal control with structure,and adopting thermal simulation software to analyze temperature distribution on power devices.The thermal simulation result shows that perfect heat dissipation can be implemented by controlling flux.Aiming at characteristics like multiple variety of cold plate on antenna array,and difficulty in allocating flux,pressure-flux matching technique is used to achieve precise flux allocation for 25 cold plates by arranging runner rationally within antenna framework.
作者
任恒
Ren Heng(No. 38 Research Institute of CETC, Hefei 23008)
出处
《火控雷达技术》
2017年第2期80-84,共5页
Fire Control Radar Technology
关键词
天线阵面
高热流密度
热设计
流量分配
antenna array
high heat flux density
thermal design
flux allocation
