天线方向图综合中的本征激励方法  

The eigen-driven analysis method in antenna pattern synthesis

作　　者：卜安涛[1] 史小卫[1] 

机构地区：[1]西安电子科技大学电子工程学院,陕西西安710071

出　　处：《西安电子科技大学学报》2004年第2期243-247,共5页Journal of Xidian University

基　　金：国家自然科学基金资助项目(69971017)

摘　　要：给出矩量法分析天线阵列时本征激励模式的不同定义.使用单元间无耦合的理想阵列来逼近有耦合的实际阵列.可以把理想阵列单元的电流分布经过等效转化之后得到的系数去激励有耦合的阵列,可在有互耦的阵列上综合出与理想阵列一致的方向图.因为在优化过程中减少了精确的电磁场分析而大大缩减了考虑耦合的实际阵列方向图综合时间.最后给出算例验证了笔者思路的正确性.The novel definition of the eigen-driven mode is given in antenna array analysis by the Moment Method. The practical array with mutual coupling between elements is approximated with the ideal one without mutual coupling. The excitation coefficients derived from the current distribution of ideal array elements are used to excite the array with mutual coupling, to produce the same radiation pattern as that of the ideal array. The process of pattern synthesis of a practical array is shortened because of the reduced electromagnetic analysis. Some examples are illustrated to prove the conclusion.

关 键 词：天线方向图 本征激励 矩量法 互耦阵列 理想阵列 天线阵列 

分 类 号：TN820.12[电子电信—信息与通信工程]