紧凑型电磁带隙结构在短路微带天线中的应用  

Application of Compact Electromagnetic Band-Gap Structure to Shorted Micro-strip Antenna

作　　者：郑秋容[1] 袁乃昌[1] 付云起[1] 

机构地区：[1]国防科技大学微波技术发展中心,长沙410073

出　　处：《电子与信息学报》2007年第6期1500-1502,共3页Journal of Electronics & Information Technology

基　　金：国家973重大安全基础研究项目(51307)资助课题

摘　　要：该文提出一种带有紧凑型电磁带隙结构的短路微带天线,并与相同尺寸的普通短路微带天线作比较。测试结果表明该电磁带隙结构天线在增益上增加了3dB,H面的交叉极化有了明显的改善。同时也证明了设计具有同样谐振频率的电磁带隙结构单元,使用这种紧凑型结构的单元边长尺寸仅为普通结构的50?60%左右。这对最终实现电磁带隙结构微带相控阵天线具有重要意义。A micro-strip shorted antenna with Compact Electromagnetic Band-Gap structure （CEBG） is presented A shorted antenna with identical dimensions on a conventional ground plane is also included, so that a direct performance comparison can be made. Measured data shows a gain improvement of 3dB and a significant reduction in cress polarization for the CEBG antenna. Meanwhile it also proves that to design the same resonant frequency, the CEBG structure cell size is only about 50-60% of conventional structure, and this is significant in realizing EBG micro-strip phased antenna array.

关 键 词：微带天线 电磁带隙结构 辐射方向图 高阻表面 

分 类 号：TN823[电子电信—信息与通信工程]