不同电磁带隙结构对微带天线性能的影响  

Effect of Different Eletromagnetic Band Gap Structures on the Performance of Microstrip Antenna

作　　者：闫丽萍[1] 刘春恒[2] 刘长军[1] 

机构地区：[1]四川大学电子信息学院,成都610064 [2]中国北方电子设备研究所,北京100083

出　　处：《电讯技术》2006年第1期135-138,共4页Telecommunication Engineering

摘　　要：EBG(电磁带隙)结构已在微带贴片天线中得到广泛的应用。本文采用EBG结构对传统贴片天线进行了改进。使用基于有限元法(FEM)的软件模拟并比较了不同EBG结构对贴片天线性能的影响。结果表明基于基底打孔型方形孔EBG结构的贴片天线的性能最佳,其增益、带宽和输入回波损耗都得到了较大的改善。The Electromagnetic Band Gap （EBG） structures have found wide application in microstrip antennas. The enhancement of microstrip antenna performance using EBG structures is investigated in this paper. The influence of three different kinds of EBG structures on a conventional patch antenna is simulated using a software based on FEM（Finite Element Method）. Results show that different EBG structures have different effects ori the patch antenna. The performance such as gain, bandwidth and return loss of the conventional patch antenna is improved greatly with one of the EBG structures..

关 键 词：微带天线 电磁带隙 有限元法 性能比较 

分 类 号：TN82[电子电信—信息与通信工程]