应用EBG结构抑制电磁干扰的研究  

Research into EMI Reduction by Using EBG Structures

作　　者：万连城[1] 任立岗 

机构地区：[1]西安电子科技大学电子工程学院,陕西西安710071 [2]金钼集团工程公司工程部,陕西渭南714102

出　　处：《电子科技》2007年第11期4-7,共4页Electronic Science and Technology

摘　　要：电磁带隙结构(EBG)是一种周期性结构,具有明显的带阻特性。首先介绍了EBG结构的特点,通过理论分析计算和仿真,阐述了其禁带形成的原因,依据EBG结构所具有性质的特点,分析了该结构对表面电流的影响。并利用EBG结构带阻特性以及影响表面电流的特性,将其应用于抑制表面电流从而减小电磁干扰(EMI)。通过仿真建模实验、数据测量得到的结果,说明了将EBG结构应用于抑制电磁干扰的可行性。The Electromagnetic bandgap（EBG） is a periodic structure with obvious bandstop characteristic. The EBG structure characteristic is introduced, and the reason for the formation of its forbidden band is elaborated through theoretical analysis computation and simulation measurement. Then an analysis is given of the influence of this structure on the surface current. Finally the EBG structure is adopted to suppress surface cur- rent thus reducing the electromagnetic interference （EMI） owing to its bandstop characteristic and its influence on surface current characteristic. Results from simulation modeling experiment and the data obtained prove the feasibility of the application of EBG structure in electromagnetic interference suppression.

关 键 词：电磁带隙结构 电磁干扰 电磁兼容 

分 类 号：TN03[电子电信—物理电子学]