Compact Modeling of Series Stacked Tapered Spiral Inductors

Sathyasree Jeyaraman, V. Vanukuru, D. Nair, A. Chakravorty
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引用次数: 3

Abstract

In this paper for the first time, a frequency independent equivalent circuit model is proposed for series stacked inductors having variable width and space (taper) across their turns. The proposed model accounts for the increase in mutual inductance between the stacked spirals due to taper. Also, the proximity effect losses with tapered top and bottom spirals of the series stack is accurately modeled. Finally, the inter-layer capacitance between the stacked spirals which dictates the self-resonant-frequency of the series inductor is calculated across different values of taper. EM simulations and measurements show excellent correlation with model simulations across different layouts with different values of taper thereby demonstrating the scalability of the proposed model.
串联堆叠锥形螺旋电感的紧凑建模
本文首次提出了具有可变宽度和空间(锥度)的串联堆叠电感的频率无关等效电路模型。所提出的模型考虑了由于锥度的增加而导致的堆叠螺旋之间互感的增加。此外,本文还精确地模拟了串叠顶部和底部螺旋变细时的邻近效应损失。最后,通过不同的锥度值计算了决定串联电感自谐振频率的堆叠螺旋之间的层间电容。EM仿真和测量结果表明,在不同的布局下,不同的锥度值与模型仿真结果具有良好的相关性,从而证明了所提出模型的可扩展性。
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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