本文着重讨论使用谐振陷波器实现过渡带特窄的滤波器的计算机辅助设计方法。文中给出了设计流程图、设计程序和两组设计该滤波器的参考曲线。最后给出了一个实用电路及其设计流程图,也给出了计算和测量结果。 This article focuses on the computer-aided design of a filter that uses a resonant notch filter to achieve a narrow transition band. The paper presents the design flow chart, the design procedure and two sets of reference curves for designing this filter. Finally, a practical circuit and its design flow chart are given, as well as the calculation and measurement results.