本文提出了一种采用连续时间等效电路(简称CTE)分析SC网络的新方法.该法将混合的双线性和LDI变换应用于Z域四口等效电路中,使得导出的等效电路不含频相关元件,因而非常简单.该法并不局的用性.利用本文的连续时间等效电路,调用通用电路分析程序容易求出SC网络的频率响应. In this paper, we present a new method to analyze SC network by using continuous time equivalent circuit (CTE). This method applies mixed bilinear and LDI transform to the equivalent circuit of Z-domain four-port and makes the derived equivalent circuit It does not contain frequency-dependent components, so it is very simple. The method does not work with the use of the continuous-time equivalent circuit of this paper, call the general-purpose circuit analysis program to easily find the SC network frequency response.