一种新型紧凑宽带平面电磁带隙结构  

A Novel Compact Wideband Planar Electromagnetic Band-Gap Structure

作　　者：刘涛[1] 曹祥玉[1] 马嘉俊[1] 

机构地区：[1]空军工程大学电讯工程学院,西安710077

出　　处：《电子与信息学报》2009年第4期1007-1009,共3页Journal of Electronics & Information Technology

基　　金：国家自然科学基金(60671001);空军工程大学电讯工程学院博士创新基金(200603);陕西省自然科学基础研究(2005F21);西安市工业攻关项目(GG06020)资助课题

摘　　要：针对一般谐振型电磁带隙结构相对带宽比较窄的特点,依据电磁带隙结构带隙形成机理和等效电路分析模型,该文提出了一种基于低介电常数低成本基底的紧凑宽带平面电磁带隙结构。实验结果表明,新结构具有54.1%的相对带宽,相比文献结构有超过100%的相对带宽改善,并且中心频率降低了25.2%,达到了实现紧凑宽带UC-EBG结构的目的。Aiming at the characteristic of relative narrower bandwidth of present Electromagnetic Band-Gap （EBG） structure, according to the physical mechanism of EBG structures and equivalent circuit model, a novel compact wideband planar EBG structure is proposed constructed on low permittivity low-cost substrate in this paper. The measured results show that relative bandwidth of the novel structure reaches 54.1% and obtain more than 100% bandwidth improvement, and simultaneously the center frequency is reduced by 25.2%. The objective of realizing compact wideband UC-EBG structure is attained.

关 键 词：天线 电磁带隙 相对带宽 宽带 

分 类 号：TN823[电子电信—信息与通信工程]