本文扼要介绍了一种模式设计法进行有源滤波器的设计。分析了提出模式设计法的依据,提出了具体设计方法,提供了大量的数据和图表。它根据对滤波器的具体技术要求(通带频率、阻带频率、通带波纹、阻带衰耗等),查表得出滤波器的阶次(即决定滤波器的传递函数)、电路形式以及电路参数,然后进行频率定标和阻抗定标,就可以完成滤波器的设计。文中给出了两个带通滤波器设计实例,并与实验结果进行了比较。 This article briefly introduces a pattern design method for active filter design. Analyzed the basis of the proposed pattern design method, proposed a specific design method, provides a large number of data and charts. It is based on the filter of the specific technical requirements (passband frequency, stopband frequency, passband ripple, stopband attenuation, etc.), look-up table derived filter order (ie, the decision transfer function of the filter), the circuit form And circuit parameters, and then frequency calibration and impedance scaling, you can complete the filter design. The article gives two examples of band-pass filter design, and compared with the experimental results.