基于C型DGS的双通带滤波器设计  

Design of dual-band bandpass filter based on C-shaped DGS

作　　者：高健[1] 吴佳伟[1] 张忠祥[2] 吴先良[1] 

机构地区：[1]安徽大学电子信息工程学院,安徽合肥230039 [2]合肥师范学院电子信息工程学院,安徽合肥230601

出　　处：《电子元件与材料》2015年第8期94-97,共4页Electronic Components And Materials

基　　金：安徽省科技计划项目资助(No.1501021041)

摘　　要：基于环形谐振器的基础结构,提出了新型C型缺陷地结构(defected ground structure,DGS)的双通带滤波器。利用C型DGS结构的高阻抗传输线特性,通过调节C型DGS结构的长度与宽度尺寸,可以实现对双频段带通滤波器的工作频段控制。最后给出了一个2.4 GHz和3.45 GHz工作频段的微带双通带滤波器设计实例,其测试结果与仿真结果吻合。Based on the ring resonator structure, a new type of dual-band bandpass filter with C-shaped DGS （defected ground structure） was proposed. With the high impedance transmission line characteristic of the C-shaped DGS structure, it can realize the frequency control of the dual-band bandpass filter by tuning the length and width size of C-shaped DGS structure. Finally, a 2.4 GHz and 3.45 GHz frequency band microstrip dual-band bandpass filter was designed as an example. The measured results of the filter are consistent with its simulation results.

关 键 词：滤波器 DGS结构 双通带 环形谐振器 微带 高阻抗传输线 

分 类 号：TN811[电子电信—信息与通信工程]