某无人机SAR天线系统的热设计

为解决某无人机SAR安装平台无环控、天线系统发热量大、安装空间狭小等问题,文中将热管技术引入机载雷达天线系统的热设计。针对雷达工作状态,分别提出天线系统的挂飞散热方案和地面调试散热方案,并通过地面试验和仿真分析验证散热方案的合理性。结果表明,根据雷达工作状态进行热设计的思路可行,散热方案合理,满足热设计要求。

Thermal Design of the SAR Antenna of an Unmanned Aerial Vehicle

A set of problems restrain the heat dissipation of the antenna of an unmanned aerial vehicle, including no environment control system, large heat load and confined space. To solve these problems, heat pipe is introduced to the thermal design of the antenna of airborne radar. According to radar work states, the methods of heat dissipation for flight and ground tests are proposed respectively. In addition, the methods are verified through ground test and numerical simulation. The results show that thermal design according to radar work states is feasible, the methods are reasonable and can meet the demands of thermal design.