一种耦合线带通滤波器的设计  

A coupled line band-pass filter design

作　　者：王名越[1,2,3] 张卫国[1,2] WANG Ming-yue ZHANG Wei-guo(Key Laboratory of Micrwave Remote Sensing, Chinese Academy of Science, Beijing 100190, China National Space Science Centre, Chinese Academy of Science, Beijing 100190, China University of Chinese Academy of Science, Beijing 100190, China)

机构地区：[1]中国科学院微波遥感技术重点实验室,北京100190 [2]中国科学院国家空间科学中心,北京100190 [3]中国科学院大学,北京100190

出　　处：《电子设计工程》2017年第12期123-127,共5页Electronic Design Engineering

摘　　要：在现代通信系统中,滤波器的使用越来越广泛。本文通过两种仿真软件的协同仿真分析,来实现一个耦合线带通滤波器的设计。首先通过理论计算公式得到耦合线的奇偶模阻抗,然后在ADS软件中进行初次仿真分析。考虑到实际损耗的以及环境的影响,由ADS得到的结果作为HFSS的初始参数再在HFSS软件中进行优化设计。优化设计结果表明该耦合线带通滤波器在1 db损耗内的带宽为1.57~2.17 GHz,且在该频率范围内的回波损耗小于-10 d B,可以满足射频微波通信系统的要求。In modern communication systems, filters are used more and more widely. In this paper, two simulation software co-simulation analysis to achieve a coupled line bandpass filter design. First , get even and odd mode impedance coupling line by theoretical formula , then the first simulation in ADS software. Taking into account the actual loss and environmental impact , the results obtained by the ADS as the initial parameter ,and re-optimize the design in HFSS software. Optimal design results show that the coupled line bandpass filter bandwidth within 1db loss is 1.57~2.17 GHz , and the return loss in the frequency range of less than-10dB,which meets the requirements of RF and microwave communication system.

关 键 词：耦合线 带通 滤波器 协同设计 

分 类 号：TN61[电子电信—电路与系统]