超介质串联馈电线性偶极子阵列  

A metamaterial series-fed linear dipole array

作　　者：曹卫平[1] 温金芳[1] 李思敏[1] 

机构地区：[1]桂林电子科技大学信息与通信学院,广西桂林541004

出　　处：《桂林电子科技大学学报》2010年第6期533-536,共4页Journal of Guilin University of Electronic Technology

基　　金：国家自然科学基金(61071018)

摘　　要：基于超介质的相位超前理论,设计了一种新型的串联线性偶极子阵列。该阵列利用负折射指数相移线代替传统一个导波波长(λg)的弯折线进行馈电。其中,NRI相移线采用CPS技术,并通过在主传输线上周期性地加载串联电容和并联电感来实现。研究结果表明:串联馈电线性偶极子天线具有带宽宽、体积小、波束倾斜小、制作简单、易于集成等优点。A novel series-fed linear antenna arrays based on negative refractive index theory is presented.The negative refractive index（NRI） media implemented by periodically loading host transmission-lines（TL） with lumped-element series capacitors and shunt inductors.The proposed series-fed linear antenna arrays employs metamaterials phase-shifting lines,instead of the conventional a one guided wavelength（λg） long meandered TL to feed.Both the metamaterials and TL arrays were designed in co-planar strip（CPS） technology.The proposed arrays shows a relative broad bandwidth,array patterns experience less beam squint with frequency when compared to their conventional series-fed counterparts.Moreover,it is compacted and easily to implement and integration.

关 键 词：超介质 共面带状线(CPS) 负折射指数相移线 

分 类 号：TN82[电子电信—信息与通信工程]