Electromagnetic bandgap power/ground planes for wideband suppression of ground bounce noise and radiated emission in high-speed circuits
Electromagnetic bandgap power/ground planes for wideband suppression of ground bounce noise and radiated emission in high-speed circuits
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DOI：
10.1109/tmtt.2005.854248
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发表时间：
2005
影响因子：
4.3
通讯作者：
Tzong-Lin Wu;Yen-Hui Lin;Ting-Kuang Wang;Chien-Chung Wang;Sin-Ting Chen
中科院分区：
文献类型：
--
作者：
Tzong-Lin Wu;Yen-Hui Lin;Ting-Kuang Wang;Chien-Chung Wang;Sin-Ting Chen
提出了一种利用低周期共面电磁带隙（LPC-EBG）结构有效消除高速数字电路接地反弹噪声（GBN）的电源/接地层设计方法。在保持接地层的坚固性和在电源层上设计LPC-EBG图案的情况下，所提出的结构在宽带频率范围（超过4 GHz）内全方位地表现出高效的GBN抑制（超过50 dB）。此外，所提出的设计抑制了由阻带内的GBN引起的辐射发射（或电磁干扰）。数值计算和实验验证了GBN的低辐射和宽带抑制特性。好的协议已经看到了。研究了LPC-EBG电源层对信号完整性的影响。两种可能的解决方案，差分信号和嵌入式LPC-EBG电源层的概念，建议和讨论，以减少影响。
A power/ground planes design for efficiently eliminating the ground bounce noise (GBN) in high-speed digital circuits is proposed by using low-period coplanar electromagnetic bandgap (LPC-EBG) structure. Keeping solid for the ground plane and designing an LPC-EBG pattern on the power plane, the proposed structure omnidirectionally behaves highly efficiently in suppression of GBN (over 50 dB) within the broad-band frequency range (over 4 GHz). In addition, the proposed designs suppress radiated emission (or electromagnetic interference) caused by the GBN within the stopband. These extinctive behaviors of low radiation and broad-band suppression of the GBN is demonstrated numerically and experimentally. Good agreements are seen. The impact of the LPC-EBG power plane on the signal integrity for the signals referring to the power plane is investigated. Two possible solutions, differential signals and an embedded LPC-EBG power plane concept, are suggested and discussed to reduce the impact.