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Geometry Optimization of Planar Spiral Inductors operating at 5G mid-band frequencies

机译：在5G中频频率下工作的平面螺旋电感的几何优化

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摘要

This paper discusses a simplified methodology and optimization of geometry for designing of Planar Spiral Inductors. The existing method to calculate Inductance of a spiral i.e., the Greenhouse algorithm and other popularly used Spiral Inductor models are revisited. The parasitics and their effects on the spiral, quality factor, and range of operation at higher frequencies are discussed. The aim is to offer a simple method for extracting the geometric parameters of the Spiral Inductor for required Inductances are derived considering the given design constraints. The layout specifications can be chosen based on the requirements of the Quality Factor, the frequency range of operation. The layout parameters for 2nH, 5nH, and 10nH are derived for the outer dimensions in micrometers. The algorithm is implemented in Matlab and the Spiral Inductors designs are simulated in Sonnet EM tool on 180nm CMOS technology. The results are found to have overall deviations less than 10% for the thickness of 1 nm with a frequency range of operation in mid-bands of 5G spectrum and operational range almost till double the frequency corresponding to the maximum Quality Factor.
机译：本文讨论了用于设计平面螺旋电感器的几何形状的简化方法和优化。计算螺旋的电感的现有方法，重新预订温室算法和其他普遍使用的螺旋电感器模型。讨论了寄生菌及其对螺旋，质量因子和较高频率操作范围的影响。目的是提供一种简单的方法，用于提取所需电感的螺旋电感的几何参数，考虑到给定的设计约束。可以基于质量因数，操作频率范围的要求选择布局规范。用于2nH，5nH和10NH的布局参数用于微米中的外尺寸。该算法在MATLAB中实现，并在180nm CMOS技术中在SINNET EM工具中模拟螺旋电感设计。发现结果具有小于10％的整体偏差，对于厚度为1nm，在5g频谱的中间带中的频率范围和操作范围几乎直到与最大质量因子相对应的频率的双倍。

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