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Journal of Antennas 2023
耐高温相控阵天线关键技术研究
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Abstract:
本文就制约高机动平台相控阵天线工程化应用的外表温度过高的问题提出了表面进行隔热设计、内部进行高效热控的设计思路，提出了一种可应用于隔离300℃~400℃高温的天线隔热罩设计方法，并对天线隔热罩对相控阵天线辐射特性的影响进行了仿真和分析，得出了较厚的隔热罩对天线波束指向、天线增益均存在较大影响，在实际工程应用中，需进行修正和补偿的结论。上述的设计思路和方法均经过了仿真和工程应用，相关方法可显著提升相控阵天线在高机动平台下的电气性能和环境适应性，为研制高性能耐高温相控阵天线样机提供了技术基础。
In order to solve the problem of high surface temperature, which restricts the engineering application of phased array antenna on high mobile platform, this paper puts forward a design idea of sur-face heat insulation design and internal high efficiency thermal control, and puts forward an antenna heat shield design method which can be applied to isolate the high temperature of 300？C ~400？C. The influence of antenna heat shield on the radiation characteristics of phased array antenna is simulated and analyzed. It is concluded that thicker heat shield has great influence on antenna beam direction and antenna gain, and it needs to be corrected and compensated in practical engineering application. The above design ideas and methods have been simulated and applied in engineering, and the relevant methods can significantly improve the electrical performance and environmental adaptability of phased array antenna under high mobility platform, and provide a technical basis for the development of high-performance and high-temperature resistant phased array antenna prototype.
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