包含3个不同类型的滤波器设计报告，无源带通滤波器，无源低通滤波器，有缘低通滤波器-Contains three different types of filter design report, passive band-pass filter, passive low-pass filter, and by chance the low-pass filter

设计一个8阶以内的带通滤波器，通带截止频率fc1=30070HZ，fc2=32170HZ，通带内允许最大衰减0.2dB。设计满足要求的Butterworth滤波器和chebyshev滤波器。以RC运放为基本单元以最易实现的原则完成电路设计及参数选择，并根据设计参数进行幅频特性和相频特性的仿真，给出仿真曲线。分析电路的无源灵敏度。-Design within an 8-order band-pass filter, the passband cutoff frequencies FC1 = 300

无源滤波器设计的设计原理，设计技巧，熟练掌握无源滤波器设计-Passive filter design, the design principle of design skills, familiar with passive filter design

实现无源滤波器的选型 自己设计各种参数 和 结构 实现自动检测并选择型号-Implementation of passive filter selection, design parameters and structure to realize automatic detection and select models