新型电磁带隙结构加载的微带天线阵  

Novel EBG Loaded Microstrip Antenna Array

作　　者：李有权[1] 张光甫[1] 付云起[1] 袁乃昌[1] 

机构地区：[1]国防科技大学电子科学与工程学院,湖南长沙410073

出　　处：《国防科技大学学报》2010年第4期68-71,77,共5页Journal of National University of Defense Technology

基　　金：国家自然科学基金资助项目(60871069)

摘　　要：研究了以EBG结构为衬底的微带天线阵。将EBG结构置于微带天线阵的底部取代微带天线阵列的金属底板,不仅能增加天线带宽,还能提高天线阵的增益。测试结果表明,天线单元带宽从3.81%提高到8.86%,在工作频带内天线阵增益都在10dB以上,同时天线单元间的耦合系数也得到有效降低。Microstrip antenna array mounted over electromagnetic bandgap （EBG） substrate was studied The EBG was mounted below the microstrip antenna array to replace the conducting ground plane of antenna array,which can widen the operational bandwidth and promote the gain of antenna array. The measured results show that the operational bandwidth of antenna unit is promoted from 3.81% to 8.86%,and in the operational band the gain of antenna array is over 10dB. Meanwhile the coupling coefficient between units of antenna array is reduced.

关 键 词：微带天线阵 电磁带隙结构 耦合系数 带宽 增益 

分 类 号：TN011[电子电信—物理电子学]