中文摘要：

针对微波集成电路／单片微波集成电路中不连续性的导波结构，系统地综述了一种提取高次模的方法。该方法基于时域有限差分（FDTD）法的麦克斯韦方程求解技术，结合频域奇异值分解分析方法而实现。对基于系统的传输模态分析，该方法用于研究微波集成电路／单片微波集成电路中的不连续性，可确定系统的模式散射参数（S-参数）。文中所有结构宽波段的分析结果表明，这种方法计算准确、高效。

英文摘要：

A method for extracting high order modes for a guided wave structure from its connected MIC/MMIC discontinuity is reviewd. The method is derived based on the finite-difference time-domain （ FDTD ） Maxwell＇s solution technique in conjunction with the frequency domain singular value decomposition （ FD-SVD ） analysis. Also ,the developed method can directly determine the scattering parameters （ S- parameters） ,based on the modal analysis, for the investigated MIC/MMIC discontinuities. It shows that the scheme is computationally accurate and efficient in a wide-band analysis for all structures investigated in this research.