一种高海拔相控阵天线DBF模块的热设计方法  

A Thermal Design Method for DBF Module of High Altitude Phased Array Antennas

作　　者：马方圆 孟辰[1] 李桂红 Ma Fangyuan;Meng Chen;Li Guihong(The 39 Institute of CETC,xi'an,710065)

机构地区：[1]中国电子科技集团公司第39研究所,西安710065

出　　处：《测控与通信》2024年第1期23-28,共6页

摘　　要：高海拔情况下的相控阵天线散热,主要是针对后端DBF模块的散热,通过分析DBF上发热芯片的功率密度,选择强迫风冷进行散热,由于海拔较高,空气稀薄,风扇在同样的转速下输出的空气流量会大大降低,给后续的热设计带来了一定的困难。针对高海拔的情况,使用仿真软件对散热器进行设计优化,通过FloEFD仿真分析设计出适合高海拔条件下的散热器,并完成天线后端结构整体的布局和散热。The heat dissipation of phased array antennas under high altitude conditions is mainly aimed at the heat dissipation of the backend DBF module.By analyzing the power density of the heating chip on the DBF,forced air cooling is selected for heat dissipation.Due to the high altitude and thin air,the air flow output by the fan at the same speed will be greatly reduced,which brings certain difficulties to subsequent thermal design.For high altitude situations,simulation software is used to design and optimize the heat sink.FloEFD simulation analysis is used to design a heat sink suitable for high altitude conditions,and the layout and heat dissipation of the antenna backend structure are completed.

关 键 词：高海拔 相控阵天线 热设计 

分 类 号：TN9[电子电信—信息与通信工程]