中文摘要：

基于等效网络拓展模型，通过耦合矩阵级联的方式建立了包含天线单元间互耦影响的X型极化分集系统理论分析模型，进而推导出天线单元平均接收功率以及空域相关系数的解析式，由此可以分析天线间互耦与来波平均到达角对天线单元平均接收功率及其信道容量等的影响．仿真结果表明，在以对称振子为单元的分集系统中互耦降低了天线单元平均接收功率及其信道容量．

英文摘要：

A useful model for analyzing the effect of mutual coupling （MC） of the X-type polarization diversity system is propounded by the cascading of coupling coefficients matrix from the equivalent network model. The analytical expressions for both the average received power for each antenna element and spatial correlation between elements are also derived, and the effects of both MC and the mean Direction of Arrival （DOA） on the average power and capacity of MIMO wireless channels could be investigated, with the characters of the effect of mutual coupling in a dipole system shown.