A novel power plane topology for wideband suppression of simultaneous switching noise and fast computational method

2009 IEEE Electrical Design of Advanced Packaging & Systems Symposium (EDAPS) Pub Date : 2009-12-01 DOI:10.1109/EDAPS.2009.5403991

Hee-Do Kang, H. Kim, Sang-Gyu Kim, J. Yook

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Abstract

Using spiral resonator mounted on a power plane, simultaneous switching noise and ground bouncing noise can be suppressed through very wideband from 0.22 GHz to 12.5 GHz under noise suppression margin of −25 dB. The area of diameter of 3.2 mm is necessary for the resonator, and is comparable to a clearance pad size, diameter of 3.0 mm, in a ground/power plane. Hence the small size makes discontinuity of return current path reduces, therefore the signal integrity problem of an electromagnetic bandgap structure can be improved. For the analysis of modeling, the effects of inductance and capacitance in the spiral resonator are analyzed. As a result, suppression bandwidth and resonance frequency can be easily controlled by arm length and gap of spiral. Moreover, by applying 2 different sizes of resonators on top and bottom of power via, it is identified that multi-resonance effect is also obtained. Finally, it is shown that computational time can be dramatically decreased using both transmission line method and three-dimensional electromagnetic (3D EM) simulation instead of only 3D EM simulation for analysis.

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一种用于宽带同时开关噪声抑制的新型功率平面拓扑和快速计算方法

利用安装在功率平面上的螺旋谐振器，在- 25 dB的噪声抑制裕度下，可以在0.22 GHz到12.5 GHz的非常宽的频带范围内同时抑制开关噪声和地弹跳噪声。直径3.2 mm的面积对于谐振器来说是必要的，并且可以与地/电源平面中直径3.0 mm的间隙垫尺寸相媲美。因此，小尺寸减小了回流路径的不连续，从而改善了电磁带隙结构的信号完整性问题。在建模分析中，分析了电感和电容对螺旋谐振腔的影响。因此，可以很容易地通过臂长和螺旋间隙来控制抑制带宽和谐振频率。此外，通过在功率通孔的上、下两个不同尺寸的谐振器，也得到了多共振效应。结果表明，采用传输线法和三维电磁仿真相结合的方法可以大大减少计算时间，而不是只进行三维电磁仿真分析。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2009 IEEE Electrical Design of Advanced Packaging & Systems Symposium (EDAPS)

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