平行耦合式微带线带通滤波器的ADS辅助设计研究

ADS-aided Design of Parallel Coupled Microstrip Bandpass Filter

文中以一相对带宽达60%的宽带滤波器(中心频率f_(?)=1375MHz,带宽BW=850MHz)为例,详细地阐述了设计平行耦合式微带线带通滤波器汁算方法,以及如何运用ADS射频模拟软件辅助设计微带线滤波器。测试了S21传输特性曲线,测试结果表明:ADS仿真效果与实测结果基本一致。

Take a special filter(center frequency fc=1375MHz,bandwidth BW=850MHz)as an example,this paper elaborates the calculating methods on how to design parallel couplcd microstrip bandpass filter,how to make full use of ADS as a computer design assistant.Based on experiment,S21 characteristic curve is tested.And cxpcrimcntal data show that the result from ADS emulation is almost the same as that from practical test.