有限元\边界元混合算法分析波导裂缝阵列天线  

FE-BI analysis of rectangular waveguide longitudinal slots array antennas

作　　者：孙良[1] 刘其中[1] 邹艳林[1] 

机构地区：[1]西安电子科技大学天线与微波技术国防科技重点实验室,陕西西安710071

出　　处：《电波科学学报》2011年第4期704-708,共5页Chinese Journal of Radio Science

摘　　要：研究了一种分析波导裂缝阵列天线的方法。将有限元-边界元混合算法(FE-BI)应用于波导裂缝阵列天线的计算中,建立理论分析模型,计算波导裂缝上的等效磁流,进而求解整个天线阵列的远场辐射特性。为了检验这种方法的正确性,将所得的数值计算结果与测试值进行了比较,结果表明:FE-BI法可以作为计算波导裂缝阵列天线的一种有效的方法。A method for analyzing waveguide slots array is investigated. The finite element-boundary integral （FE-BI） method is introduced to calculate waveguide slots array antennas. The numerical model based on FE-BI is established. Then by obtaining the equivalent magnetic current on the surfaces of the slots, far field radiation characteristics of the waveguide slots array can be acquired. Also simulated and measured results are compared to verify the efficiency and accuracy of the pres- ented method. The good agreement shows that FE-BI can he utilized as an efficient method for analyzing waveguide slots array.

关 键 词：波导裂缝 有限元-边界元 阵列天线 

分 类 号：TN928[电子电信—通信与信息系统]