一种快速分析面面结构电磁辐射特性算法  

Fast analysis of electromagnetic properties of surface/surface configurations

作　　者：王兴[1] 龚书喜[1] 王文涛[1] 张玉洁[1] 

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

出　　处：《西安电子科技大学学报》2011年第4期106-111,共6页Journal of Xidian University

基　　金：国家自然科学基金资助项目(60801042)

摘　　要：应用自适应积分方法(AIM)快速分析面面结构的电磁辐射特性.对含有线和面的复杂结构,需引入特殊的基函数来处理连接处迅速变化的电流.为了简化模型,以无厚度的细带代替圆柱线,统一使用RWG基函数建立面面连接模型;然后应用AIM加速迭代求解矩阵和矢量相乘,并稀疏存储阻抗矩阵.与传统矩量法相比,该方法大大降低了内存需求和计算时间.利用预条件技术进一步降低了迭代次数和求解时间.最后,通过3个典型算例的数值结果验证了该方法的准确性和高效性.The adaptive integral method is utilized to solve electromagnetic radiation properties of conducting surface/surface configurations.For a complex structure that involves wires and surfaces,a special basis function must be introduced to deal with the rapid varying current distributions.To simplify this model,a uniform RWG basis function has been used to model the surface/surface junction by using a thin strip with no thickness instead of a wire.Then the AIM is employed to accelerate the matrix-vector multiplications and to reduce matrix storage where the full matrices are stored in a sparse form.The preconditioner is developed to decrease the number of iterations and reduce the time of solution.Finally,three numerical examples are presented to demonstrate the accuracy and efficiency of this technique.

关 键 词：自适应积分 快速傅里叶变换 矩量法 

分 类 号：TN821.3[电子电信—信息与通信工程]