文档介绍：西北工业大学硕士论文摘要摘要波导裂缝阵列天线由于其体积小、重量轻、口径效率高、功率容量大和容易实现低副瓣及超低副瓣等优点,在机载火控雷达、导弹导引头等方面有着极为广泛的应用。本文就裂缝阵列天线的辐射阵面及功分系统设计技术进行研究。论文首先回顾了国内外波导裂缝阵列天线的研究历史和现状,介绍了波导裂缝阵列天线的构成和基本原理;分析了缝隙的阻抗特性与谐振长度,利用波导中磁场的边界条件详细推导了两端开路、一端短路和两端短路情况下波导宽边开纵缝、横缝和斜缝的并矢格林函数。然后针对端馈式波导裂缝阵列运用矩量法进行了精确的分析,将波导内外部的互耦、波导壁厚及波导内高次模的影响全部考虑进去,详细推导了导纳矩阵中的元素表达式,解决了矩阵元的奇异点问题,给出了缝阵的远区辐射场求解公式;进而对单缝、一个行波线阵和一个驻波线阵进行了编程计算,以验证该方法及所推导公式的正确性;并按泰勒分布设计了一根端馈线阵。接着运用矩量法对耦合斜缝馈电式阵列天线进行了分析,得到了耦合斜缝馈电的两端短路波导宽边纵缝直线阵在辐射缝偏心距和缝长都相同时直线缝阵口径分布等幅同相的结论,利用所得结论并结合泰勒线阵综合法提出了一种有效的综合方法,并设计了一根线阵。最后就两种馈电功分系统进行了仿真分析, 设计了一个八分路的微带功分器和一个折叠双T接头。关键词:裂缝阵列天线, 并矢格林函数,矩量法,辐射方向图,反射系数功率分配器西北工业大学硕士论文 Abstract Abstract Slottedwaveguide army antenna has been used widely inradar and munication systems because pact structure,power capacity, realizing low side-lobe andvery lowside- thisarticle,theradiating s1,11-face andpower dividera∞researched inthispaper. First,review the research history and present situation oftheslottedwavegulde array ante'liSa,introduce the structure and keystone;analysis theimpedance characteristicand resonance length oftheslot,conclude theDyadic Green’Sfunctions ofthelongitudinal,horizontaland inclined slotinthewavegnide using theboundary conditionof ic ,theory analysisand calculation of the rectangular waveguide longitudinal slotarrays aremade byusing moment method, including the innerand ******@r mutualcouplings,the effectofthe fmitewaveguide wall thickness and the internalhigber order mode theelementary expression intheadmittance matrix,solve thesingnhrity problem,present thearray ofHnkmg far- well as on thesingle slot,a standing wave linear array and alineararray fortheprogram,to veilfy thecorrectness ofthemethodology andformulasderived;Design alinearray ofthearray antellna feeding bycoupling inclined slotusing moment mathod hasbeen made,get a veryimportantconclusion,using thisand taylormethodan effectivedesign method is bringcd forward,a linearray