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由于原始的Ｔ矩阵不适用于求解具有大纵横比物体的电磁散射问题，针对二维问题，通过对其格林函数的椭圆柱波函数展开，提出一种求解二维电磁散射问题椭圆柱波函数的Ｔ矩阵程式（推广Ｔ矩阵）。结果表明：推广Ｔ矩阵能够很好地用于处理谐振频域的大纵横比物体的电磁散射问题。
Since the original T matrix is not suitable for solving electromagnetic scattering problems with large aspect ratio objects, aiming at two-dimensional problems, an elliptic cylindrical wave function of Green's function is developed. T matrix program (generalized T matrix). The results show that the generalized T matrix can be used to deal with the electromagnetic scattering of large aspect ratio objects in the resonant frequency domain.