针对传统矩量法分析电大目标难度大的问题,近几年提出一种有效的方法——特征基函数法。文中采用此方法结合空域格林函数法对一些微带天线阵列的电磁特性进行了研究,其中研究并运用磁流圆盘来模拟同轴激励源,运用简化附加模模型模拟线面连接处的电流。数值分析结果与MOM、软件仿真、相关文献的结果吻合良好,与MOM相比计算时间大大减少,从而证明了此方法的正确性、通用性和优越性。 In view of the difficulty of analyzing the target of TVU with traditional method of moment, this paper proposes an effective method, called the basis function method, in recent years. In this paper, the electromagnetic properties of some microstrip antenna arrays are studied by using this method combined with airspace Green’s function method. In this paper, a magnetic disc is used to simulate the coaxial excitation source, and a simplified additive model is used to simulate the current at the line junction. The results of numerical analysis are in good agreement with the results of MOM, software simulation and related literatures, and the computational time is greatly reduced compared with MOM, which proves the correctness, universality and superiority of this method.