基于螺旋谐振环结构的UWB同步开关噪声抑制电源平面
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摘要
针对目前印制电路板中采用的同步开关噪声抑制方法抑制带宽较窄、全向性较差、电源平面有效使用面积小、结构复杂及对信号质量影响大的问题,提出了一种基于螺旋谐振环结构的超宽带同步开关噪声抑制平面,具有结构简单、阻带宽、抑制方向具有全向性、无需周期性电磁带隙结构的特点。通过研究其等效电路模型,使用三维有限元法(FEM)对所设计的结构提取了S参数,并进行了频域与时域分析与仿真。仿真结果表明:所提出的结构其同步开关噪声抑制深度在-40 d B时,阻带范围为0.13~20 GHz,抑制带宽达到19.87 GHz,有效降低了带隙中心频率;当注入噪声电压为1 V时,可将噪声电压抑制到0.25 m V;对比UC-EBG和Planar EBG结构,在-40 d B抑制深度时,抑制带宽分别提高了16.97 GHz和17.73 GHz。
To solve the limitations of existing methods of simultaneous switching noise( SSN) suppression,an ultra- wideband( UWB) suppression of SSN using spiral resonator structure mounted power plane is presented. By studying its equivalent circuit model,full-wave finite element method( FEM) is applied to analyze the power integrity both in frequency domain and time domain. The simulated results display that the SSN suppression bandwidth is broadened from 0.13 GHz to 20 GHz under a noise suppression margin of-40 d B,the SSN suppression characteristics are greatly improved in lower frequencies,approximately16.97 GHz and 17.73 GHz of stopband bandwidth improvement over the conventional UC-EBG and planar-EBG power plane,respectively. When noise frequency is 20 GHz,the amplitude is 1 V injected,the noise voltage is suppressed to 0.25 m V.
To solve the limitations of existing methods of simultaneous switching noise( SSN) suppression,an ultra- wideband( UWB) suppression of SSN using spiral resonator structure mounted power plane is presented. By studying its equivalent circuit model,full-wave finite element method( FEM) is applied to analyze the power integrity both in frequency domain and time domain. The simulated results display that the SSN suppression bandwidth is broadened from 0.13 GHz to 20 GHz under a noise suppression margin of-40 d B,the SSN suppression characteristics are greatly improved in lower frequencies,approximately16.97 GHz and 17.73 GHz of stopband bandwidth improvement over the conventional UC-EBG and planar-EBG power plane,respectively. When noise frequency is 20 GHz,the amplitude is 1 V injected,the noise voltage is suppressed to 0.25 m V.
引文
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[2]YANG H F,YUN X,CHANG H,et.al.Efficient and lowlatency pixel data transmission module for adaptive optics wavefront processor based on field-programmable gate array[J].Optical Engineering,2015,54(6):1-9.
[3]张志伟,李玉山.电磁带隙结构在同步开关噪声抑制中的应用分析[J].电讯技术,2010,50(3):64-68.ZHANG zhiwei,LI yushan.Application analysis of suppressing simultaneous switching noise(SSN)in electromagnetic band gap[J].Telecommunication Engineering,2010,50(3):64-68.(in Chinese)
[4]张木水.高速电路电源分配网络设计与电源完整性分析[D].西安:西安电子科技大学,2009.ZHANG Mushui.Power delivery network design and power integrity analysis for high-speed circuits[D].Xi’an:Xidian University,2009.(in Chinese)
[5]MUTHANA P,SRINIVASAN K,ENGIN A E,et.al.Improvements in noise suppression for I/O circuits using embedded planar capacitors[J].IEEE Transactions on Advanced Package,2008,31(2):234-245.
[6]张斌,张东来,贾毅婷.电网高速数据采集系统板级同步开关噪声抑制研究[J].电网技术,2012,36(3):269-276.ZHANG Bin,ZHANG Donglai,JIA Yiting.Study on board-level simultaneous switching noise reduction of power grid high-speed data acquisition system[J].Power System Technology,2012,36(3):269-276.(in Chinese)
[7]杨海峰,饶长辉,李梅,等.实时波前处理机中的同步开关噪声抑制[J].西安电子科技大学学报,2014,41(3):215-222.YANG Haifeng,RAO Changhui,LI Mei,et al.Study on suppression of simultaneous switching noise in the realtime wavefront processor[J].Journal of Xidian University,2014,41(3):215-222.(in Chinese)
[8]KYTHAKYAPUZHA S R.Modeling of spiral inductors and transformers[D].Manhattan,UK:Kansas State University,2001.
[9]WU T L,LIN Y H,CHEN S T.A novel power planes with low radiation and broadband suppression of ground bounce noise using photonic bandgap structures[J].IEEE Microwave Wireless Computational Letters,2004,14(7):337-339.
[10]RAIMONDO L,PAULIS F,ORLANDI A.A simple and efficient design procedure for planar electromagnetic bandgap structures on printed circuit boards[J].IEEETransactions on Electromagnetics Compatation,2011,53(2):482-490.