一种新型混合型超宽带EBG结构  

A Novel Hybrid Electromagnetic Band Gap Structure

作　　者：马晓剑[1] 李晓春[1] 王宁[1] 毛军发[1] 

机构地区：[1]上海交通大学高速电子系统设计与电磁兼容研究教育部重点实验室,上海200240

出　　处：《微波学报》2016年第2期30-34,42,共6页Journal of Microwaves

基　　金：上海市科委项目(13511500900);高等学校博士学科点专项科研基金(20120073130003);国家自然科学基金(61234001;61327803;61522113);电磁兼容教育部重点实验室主任基金(2012001;2014001);三星项目

摘　　要：针对当前电磁带隙(EBG)结构存在下截止频率高、阻带范围小与抑制程度差等问题,提出了一种结合L型EBG与Meander型EBG的混合型电磁带隙结构。将所提结构应用在电源分配网络(PDN)的电源层,同时保持地层的完整性,构建新型电源/地层结构。以抑制深度-30 d B作为参考标准,所提EBG结构阻带带宽可以达到270 MHz^30 GHz以上,与传统的EBG结构相比,能够实现更宽的抑制范围。仿真与实验结果表明所提结构在电源/地层间噪声抑制方面改善明显,验证了所提结构的有效性。此外,本文还研究了单根和差分信号线下的信号传输特性。结果表明,当采用差分线时,该结构在保持良好的SSN抑制性能的同时能够实现较好的信号完整性。Aimed at solving the problems of high initial cut-off frequency,small stop band range and poor inhibition in the cur-rent electromagnetic band gap（EBG）structure,a hybrid electromagnetic band gap structure with meander EBG and L EBG is pro-posed. The proposed structure is applied in the power layer of power distribution network（PDN）,maintaining the integrity of theground layer,to build a new power/ground structure. Compared with the traditional EBG structure,the proposed EBG structure canachieve 270 MHz-30 GHz bandwidth,in a reference of-30 d B,which is wide in range. Simulation and experimental results are repre-sented to verify the noise suppression performance by the proposed hybrid EBG structure. In addition,the transfer characteristic of sin-gle line and differential signal lines are studied. The results show that the performance with the proposed hybrid EBG is high in SSNsuppression and signal integrity.

关 键 词：电磁带隙结构 同步开关噪声 电源完整性 

分 类 号：TN41[电子电信—微电子学与固体电子学]