一种具有超宽禁带的S-CSRR新型电磁带隙结构  

A Novel S-CSRR Electromagnetic Bandgap Structure with Ultrawide Stopband

作　　者：左盼盼 宋涛 王蒙军 郑宏兴 李尔平[3] ZUO Pan-pan;SONG Tao;WANG Meng-jun;ZHENG Hong-xing;LI Er-ping(School of Electronics and Information Engineering,Hebei University of Technology,Tianjin 300401,China;Tianjin Key Laboratory of Electronics Materials and Devices,Tianjin 300401,China;Key Laboratory of Advanced Micro/Nano Electronic Devices & Smart Systems and Applications,Zhejiang University,Hangzhou 310027,China)

机构地区：[1]河北工业大学电子信息工程学院,天津300401 [2]天津市电子材料与器件重点实验室,天津300401 [3]浙江大学先进微纳电子器件智能系统及应用重点实验室,杭州310027

出　　处：《微波学报》2019年第3期37-40,45,共5页Journal of Microwaves

基　　金：国家自然科学基金(61371031,61371043,61571395,61671200)

摘　　要：研究了高速电路领域电源/地平面之间的电源完整性问题,并设计出在电源地平面之间加载的一种新型"S"形互补开口谐振环(S-CSRR)电磁带隙结构,用以有效阻止同时开关噪声在电源分配网络上的传播。以抑制深度-30 dB为标准,能够得到高达9 GHz的超宽禁带,明显优于传统的"L"桥型电磁带隙结构。在电磁干扰方面,空间辐射电场的实验结果显示,在部分频段,该新型电磁带隙结构相比无电磁带隙结构的参考板具有更低的电磁干扰。此外,文章还探讨了该电磁带隙结构作为电源平面时的信号完整性问题。研究表明,在这种结构上采用差分线传输信号,对信号完整性的影响较小。In this paper, we focus on the power integrity(PI) problem of power/ground(P/G) plane pairs in high speed circuits and present a novel electromagnetic bandgap(EBG) structure design to efficiently suppress the simultaneous switching noise from propagating in the power distribution network. The novel structure can achieve an ultra-wide 9 GHz stopband under the suppress depth of-30 dB, which is obviously better than that of the traditional "L" bridge EBG structure. The experiment result indicates that the novel design shows lower electromagnetic interference(EMI) compared to the reference board in some frequency range. Meanwhile, the signal integrity(SI) property of the proposed EBG is also investigated when it is utilized as the power plane. The results indicate that the proposed EBG structure shows good SI performance if the differential traces are in use.

关 键 词：电磁带隙 互补开口谐振环 电磁干扰 信号完整性 眼图 

分 类 号：TN03[电子电信—物理电子学] TN86