新型非周期缺陷接地结构微带线及其应用  

Novel Microstrip Line with Combinatorial Non-periodic Defected Ground Structure and Application

作　　者：李媛[1] 叶春辉[1] 郝彦博[1] 阎磊[1] 

机构地区：[1]天津大学电子信息工程学院,天津300072

出　　处：《固体电子学研究与进展》2008年第2期229-234,共6页Research & Progress of SSE

基　　金：国家973计划资助项目(No2007CB310605);国家自然科学基金项目资助项目(No60371029)

摘　　要：提出了两种新型缺陷接地结构(DGS)单元,分析了它们的频率特性,建立了等效电路模型并提取了电路参数。将两种组合式DGS应用于双频微带天线两个端口,形成基于组合式非周期DGS(CNPDGS)的双频微带天线,并实际制作了电路。仿真和测试结果表明,基于CNPDGS的双频微带贴片天线有效地抑制了高次谐波,提高了端口隔离度。In this paper, two different shape of defected ground structure （DGS） units are presented and their frequency characters are analyzed. Then the dual-frequency microstrip antenna integrated with these two different shapes of combinatorial non-periodic DGS is designed. Simulated and measured results compared with conventional dual-frequency microstrip antenna show that high order harmonics are suppressed and the port isolation is enhanced.

关 键 词：非周期缺陷接地结构 双频微带天线 谐波 隔离度 

分 类 号：TN803[电子电信—信息与通信工程]