介质型EBG结构对同步开关噪声抑制的有限元分析
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摘要
研究了介质型电磁带隙结构对高速电路中电源/地平面间同步开关噪声的抑制作用。该介质型电磁带隙结构在抑制同步开关噪声的同时未破坏高速信号的电流返回路径,使高速信号的信号完整性得以保持。利用电磁场有限元方法将电源/地平面间同步开关噪声抑制的三维问题转化成二维问题进行处理,提高了计算效率。分析了介质型电磁带隙结构的介电常数对噪声抑制带宽的影响,利用了三维全波电磁场仿真软件HFSS对二维数值结果进行仿真验证,仿真结果与数值计算结果基本吻合,验证了二维数值算法的正确性。
Dielectrical elctromagnetic bandgap structures for mitigation of the simultaneously switching noises between power and ground planes in high-speed circuit is researched. This dielectrical electromagnetic bandgap structure can suppress the simultaneously switching noise without destroying the current return path of high-speed signal, so the signal integrity of high-speed signal can be maintained. The three-dimensional mitigation problem for the simultaneously switching noises is transformed into two-dimensional problem by using the finite element method of electromagnetic field, which improves the computational efficiency. The influence of dielectric permittivity of dielectric electromagnetic bandgap structure on noise suppression bandwidth is analyzed. The two-dimensional numerical results are simulated and verified by using HFSS software. The simulation results are basically in agreement with the numerical results, which verify the correctness of the two-dimensional numerical algorithm.
Dielectrical elctromagnetic bandgap structures for mitigation of the simultaneously switching noises between power and ground planes in high-speed circuit is researched. This dielectrical electromagnetic bandgap structure can suppress the simultaneously switching noise without destroying the current return path of high-speed signal, so the signal integrity of high-speed signal can be maintained. The three-dimensional mitigation problem for the simultaneously switching noises is transformed into two-dimensional problem by using the finite element method of electromagnetic field, which improves the computational efficiency. The influence of dielectric permittivity of dielectric electromagnetic bandgap structure on noise suppression bandwidth is analyzed. The two-dimensional numerical results are simulated and verified by using HFSS software. The simulation results are basically in agreement with the numerical results, which verify the correctness of the two-dimensional numerical algorithm.
引文
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[11] Shi L F,Li K J,Hu H Q,et al.Novel L-EBG embedded structure for the suppression of SSN[J].IEEE Transactions on Electromagnetic Compatibility,2016,58(1):241-248
[12] Wang C L,Shiue G H,Guo W D,et al.A systematic design to suppress wideband ground bounce noise in high-speed circuits by electromagnetic-bandgap- enhanced split powers[J].IEEE Transactions on Microwave Theory and Techniques,2006,54(12):7209-4217
[13] Shen C K,Chen S,Wu T L.Compact cascaded-spiral-patch EBG structure for broadband SSN mitigation in WLAN applications[J].IEEE Transactions on Microwave Theory and Techniques,2016,64(9):2740-2748
[14] Li J J,Mao J F,Ren S W,et al.Embedded planar EBG and shorting via arrays for SSN suppression in multilayer PCBs[J].IEEE Antennas and Wireless Propagation Letters,2012,11:1430-1433
[15] Wu T L,Chen S T.A photonic crystal power/ground layer for eliminating simultaneously switching noise in high-speed circuit[J].IEEE Transactions on Microwave Theory and Techniques,2006,54(8):3398-3045
[16] Scogna A C,Wu T L,Orlandi A.Noise coupling mitigation in PWR/GND plane pair by means of photonic crystal fence:sensitivity analysis and design parameters extraction[J].IEEE Transactions on Advanced Packaging,2010,33(3):574-581
[2] Shringarpure K,Pan S M,Kim J.Sensitivity analysis of a circuit model for power distribution network in a multi layered printed circuit board[J].IEEE Transactions on Electromagnetic Compatibility,2017,59(6):1993-2001
[3] Fan J,Drewniak J L,Knighten J L,et al.Quantifying SMT decoupling capacitor placement in DC power-bus design for multilayer PCBs[J].IEEE Transactions on Electromagnetic Compatibility,2001,43(4):588-599
[4] Xu M,Hubing T H,Chen J,et al.Power-bus decoupling with embedded capacitance in printed circuit board design[J].IEEE Transactions on Electromagnetic Compatibility,2003,45(1):22-30
[5] Cui W,Fan J,Ren Y,et al.DC power-bus noise isolation with power-plane segmentation[J].IEEE Transactions on Electromagnetic Compatibility,2003,45(2):436-443
[6] Wu C T,Shiue G H,Lin S M,et al.Composite effects of reflections and ground bounce for signal line through a split power plane[J].IEEE Transactions on Advanced Packaging,2002,25(2):297-301
[7] Abhari R,Eleftheriades G V.Metallo-dielectric electromagnetic bandgap structures for suppression and isolation of the parallel-plate noise in high-speed circuits[J].IEEE Transactions on Microwave Theory and Techniques 2003,51(6):1629-1639
[8] Shahparnia S,Ramahi O M.Electromagnetic interference (EMI) reduction from printed circuit boards (PCB) using electromagnetic bandgap structures[J].IEEE Transactions on Electromagnetic Compatibility,2004,46(4):580-587
[9] 徐晓非,冯一军.高速电路中地弹噪声抑制的研究[J].微波学报,2014,30(3):32-36 Xu X F,Feng Y J.Research on ground bounce noise suppression in high-speed circuit[J].Journal of Microwaves,2014,30(3):32-36
[10] Wu T L,Lin Y H,Wang T K,et al.Electromagnetic bandgap power/ground planes for wideband suppression of ground bounce noise and radiated emission in high-speed circuits[J].IEEE Transactions on Electromagnetic Compatibility,2005,53(9):2935-2942
[11] Shi L F,Li K J,Hu H Q,et al.Novel L-EBG embedded structure for the suppression of SSN[J].IEEE Transactions on Electromagnetic Compatibility,2016,58(1):241-248
[12] Wang C L,Shiue G H,Guo W D,et al.A systematic design to suppress wideband ground bounce noise in high-speed circuits by electromagnetic-bandgap- enhanced split powers[J].IEEE Transactions on Microwave Theory and Techniques,2006,54(12):7209-4217
[13] Shen C K,Chen S,Wu T L.Compact cascaded-spiral-patch EBG structure for broadband SSN mitigation in WLAN applications[J].IEEE Transactions on Microwave Theory and Techniques,2016,64(9):2740-2748
[14] Li J J,Mao J F,Ren S W,et al.Embedded planar EBG and shorting via arrays for SSN suppression in multilayer PCBs[J].IEEE Antennas and Wireless Propagation Letters,2012,11:1430-1433
[15] Wu T L,Chen S T.A photonic crystal power/ground layer for eliminating simultaneously switching noise in high-speed circuit[J].IEEE Transactions on Microwave Theory and Techniques,2006,54(8):3398-3045
[16] Scogna A C,Wu T L,Orlandi A.Noise coupling mitigation in PWR/GND plane pair by means of photonic crystal fence:sensitivity analysis and design parameters extraction[J].IEEE Transactions on Advanced Packaging,2010,33(3):574-581