Abstract The rotary joint is a ponent of radar feeder can plish the transmission of microwave signals as radar in order to improve the power capacity of the high—power radar the hi曲一pressure gas is filled to the feeder system. While the sealed windows is a ponent of maintaining the system pressure and its performance directly affects the performance and reliability of radar. The ic fluid seal rotary joint is a new joint and there are many advantages over other evaporation of anic solution which is the carrier of ic fluid leads to seal failure as the temperature ,the thermal analysis of this joint is particularly ,this article describes how to design the ic fluid seal rotary joint under the principle of ic fluid sealing characteristics for the engineering ,the thermal analysis of the conduction,radiation and convection was carried out separately according to traditional theory of thermal order to avoid excessive temperature rise of this joint failures due,effective thermal design is applied to the joint and it carried out through the thermal analysis simulation software”Flotherm” the joint Was conducted witll seal test, low temperature test,hi曲power experiment and the electrical performance test essfully,the joint was essfully applied in practice. Fluoride crystal mica,a new developed artificial mica silicate crystals in recent decades,is applied in many fluoride crystal waveguide mica window seal, which is designed through the analysis of the thermal adaptation,frequency characteristics,stress and deformation,proves to be a good window seal for high-power radar by the experiments. Keyword:the ic fluid rotary joint seal thermal design the waveguide sealed windows fluoride crystal mica high power 西安电子科技大学学位论文独创性(或创新性)声明 秉承学校严谨的学风和优良的科学道德,本人声明所呈交的论文是我个人在导师指导下进行的研究工作及取得的研究成果。尽我所知,除了文中特别加以标注和致谢中所罗列的内容以外,论文中不包含其他人已经发表或撰写过的研究成果;也不包含为获得西安
