In this paper, some rules about the excitation of full wave analysis are given and also the bandwidth for inverse Fourier transfer in calculating impulse responses of time domain modes are discussed.

• 讨论了全波时域方法求解时域模函数时域响应时激励函数的选取原则 ；讨论了用傅里叶反变换求解时域模函数冲击响应时频带宽度的选取问题 .