| 一种新颖的DMS低通滤波器的分析与设计 |
| |
| 引用本文： | 薛玉杰,杨雪霞,陆祎敏.一种新颖的DMS低通滤波器的分析与设计[J].应用科学学报,2007,25(3):272-275. |
| |
| 作者姓名： | 薛玉杰 杨雪霞 陆祎敏 |
| |
| 作者单位： | 上海大学 通信与信息工程学院，上海 200072 |
| |
| 基金项目： | 上海市教委资助项目;上海市重点学科建设项目 |
| |
| 摘 要： | 基于缺陷微带结构（DMS）提出了一种新颖的低通滤波器。首先利用三维电磁场仿真软件分析了DMS微带线的S参数频响特性，用微波电路分析软件讨论了DMS微带线的等效电路及其参数提取。然后利用该DMS结构设计、制作了一个低通滤波器，测得该低通滤波器的3dB截止频率fc为3.4GHz，通带内最大波纹为0.3dB，插入损耗大于15dB的阻带宽度为13GHz。仿真结果和实验测试结果非常吻合，验证了等效电路的有效性和DMS低通滤波器的可实现性。
|
| 关 键 词： | 缺陷微带结构 等效电路 低通滤波器 |
| 文章编号： | 0255-8297（2007）03-0272-04 |
| 收稿时间： | 2006-09-05 |
| 修稿时间： | 2006-09-052006-12-28 |
Design and Analysis of a Novel DMS Low-Pass Filter |
| |
| XUE Yu-jie,YANG Xue-xia,LU Yi-min.Design and Analysis of a Novel DMS Low-Pass Filter[J].Journal of Applied Sciences,2007,25(3):272-275. |
| |
| Authors: | XUE Yu-jie YANG Xue-xia LU Yi-min |
| |
| Institution: | School of Communication and Information Engineering, Shanghai University, Shanghai 200072, China |
| |
| Abstract: | A novel low-pass filter using defected microstrip structure(DMS) is proposed in this paper.The frequency characteristics of the DMS are simulated with three-dimension electromagnetic field analysis software.Its equivalent circuit and equivalent parameters are extracted with microwave circuit analysis software.Then a novel low-pass filter using DMS is designed and fabricated.The measured 3 dB cutoff frequency f_c is 3.4 GHz with 0.3 dB ripple level.The rejection bandwidth of the insertion loss more than 15 dB is 13 GHz.The experimental results show good agreement with simulation,validating effectiveness of the equivalent circuit and the realization of the DMS LPF. |
| |
| Keywords: | defected microstrip structure(DMS) equivalent circuit low-pass filter |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《应用科学学报》浏览原始摘要信息 |
| 点击此处可从《应用科学学报》下载免费的PDF全文 |
