1、 课程设计报告课程设计报告 课程名称:课程名称: 模拟电子技术模拟电子技术 设计题目:设计题目: 全功能有源滤波器全功能有源滤波器 20112011 年年 1212 月月 2020 日日 模拟电子技术课程设计报告模拟电子技术课程设计报告 2 全功能滤波器的设计全功能滤波器的设计 摘摘 要:要:滤波器在通信、测量的控制系统中得到了广泛的应用。一个理想的滤波器,应在要求的频带(通 带)内具有均匀而稳定的增益,而在通带以外,则具有无穷大的衰减。然而,实际的滤波器距此 有一定的差异。为此,人们采用各种函数来逼近理想滤波器的频率特性。在本课程设计中,设计 完成了一款多功能源滤波器,通过调节电路中相应的开
2、关及参数,可以构成以下滤波电路:全通 滤波器、带阻滤波器、高通滤波器、带通滤波器、低通滤波器。此外,还对该电路进行了测试, 对测试的数据利用Origin进行了傅立叶变换,更好的展现了滤波器的频带面貌及滤波特性。 关键词:关键词: 滤波器 傅立叶变换 滤波特性 全功能 Full-featured filter design Mou Mou- Wang Mou Mou- Li Mou Mou- Zang Mou Mou-Zhao (Department of physics, Baicheng Normal college, Electronic and Information Engineeri
3、ng 2007) Abstract:Filters in communications, measurement control system has been widely used. An ideal filter, should be requested by the band (band) has a homogeneous and stable gain, and in the passband outside, then have infinite attenuation. However, the actual filter from this there are some di
4、fferences. For this reason, people using a variety of functions to approximate the ideal filter frequency characteristics. During the course design, the design is completed a multi-purpose source filter, through the adjustment of circuit switches and the corresponding parameters, can constitute a filter circuit the following: all-pass filter, band-stop filter, high-pass filter, band-pass filter, low-pass filter. In addition, the c