一种新型DGS宽带带通滤波器  

A novel broadband bandpass filter with DGS

作　　者：宛新文[1] 何宏庆[1] 李民权[1] 彭猛[1] 常海星[1] 

机构地区：[1]安徽大学计算智能与信号处理教育部重点实验室,安徽合肥230039

出　　处：《合肥工业大学学报（自然科学版）》2017年第1期59-62,共4页Journal of Hefei University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(51477001)

摘　　要：文章提出了一种新型对称开口谐振环缺陷地结构(defected ground structure,DGS)带通滤波器,该滤波器具有低插损、宽带、小型化、易加工等特点。该文对开口谐振环DGS单元进行了分析,并在此基础上设计并制作了含3个对称开口谐振环DGS宽带带通滤波器。仿真和测试结果表明:该带通滤波器的插入损耗为0.9dB,回波损耗为-12.5dB,相对带宽为7%。In this paper, a microstrip bandpass filter with novel symmetrical split-ring resonators defec- ted ground structure（DGS） is proposed. This filter exhibits advantages such as low insertion loss, large range of bandwidth, miniaturization and easy fabrication. The split-ring resonators DGS unit is analyzed. Then the wideband bandpass filter with three symmetrical split-ring resonators DGS is de- signed. The simulation and testing results show that the bandpass filter with the novel DGS provides insertion loss of 0. 9 dB and return loss of -12.5 dB,

关 键 词：微带带通滤波器 缺陷地结构(DGS) 小型化 宽带 开口谐振环 

分 类 号：TN015[电子电信—物理电子学]