【摘要】 所述的有源带通滤波器是采用现代网络理论，通过查图表反复计算数值调试并利用多项式综合滤波器的设计理论得到的设计结果，从频率响应特性曲线和电路结构可见，它完全满足了设计时所提供的各项技术指标的要求。文中详细地讨论了由单元电路到全极点多反馈滤波网络电路设计时的理论根据，各支路参数实际的计算和调试方法。这种电路结构简单合理，调试和维修十分方便，代替了无源滤波器中的大型电感和电容，有利于设备小型化。更多还原

【Abstract】 The active band-pass filter is designed by using the modern network theory and multinomial synthetic filter and by modulating and calculating repeatedly through the examination of charts. Its frequency-response curve and circuit structure completely satisfy the needs of various technical indexes. This paper discusses in detail the theoretical basis of the design from unit circuit to full-pole and multi-feedback filter network circuit,as well as the methods of calculating and debugging the parameters of various subbranch circuits. These circuit structures are simple and reasonable, and very easy to modulate and repair. Thus they replace the large-scale inductance and capacitance, and help miniturize the installations.更多还原