| 摘要: |
| 为了满足现代通信设备对其高性能滤波器的迫切需要，提出了一种新型的带通滤波器
设计方法。在传统切比雪夫函数的电路基础上，通过引入有限传输零点改善其阻带抑制性能
；结合合理的等效网络变换，得到了较椭圆函数滤波器更易于实现的电路拓扑结构。实验结
果表明，根据此方法设计出的滤波器具有低插损、高陡峭度、小体积等高性能特点。 |
| 关键词: 机载设备 带通滤波器 切比雪夫函数 传输零点 等效网络变
换 |
| DOI： |
|
| 基金项目: |
|
| A Novel Method for Designing Band pass Filter Based on Chebyshev Function |
| HU Shun-hua |
| (Southwest Institute of Electronic Technology, Chengdu 610036,China) |
| Abstract: |
| in order to meet the highdemand of modern communication equipment,a novel desi
gn method for bandpass filter is introduced. Compared to the traditi
onal Chebyshev filter, it has better stopband rejection because of applying the
finite transmission zeros，and the circuit topology is more easily to realize th
an the elliptic function filter by using equivalent network transformation. Expe
riment results show that the filter has the characteristics of low insertion lo
ss, high steepness, small size, and so on. |
| Key words: airborne equipment band-pass filter Chebyshev function transmission zero eq
uivalent network transformation |
《电讯技术》编辑部 