平面螺旋电感优化设计方法  

Plate spiral inductor optimization design method

作　　者：吴迪[1] 杨格亮 李斌[1] 

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《河北工业大学学报》2017年第5期23-27,共5页Journal of Hebei University of Technology

基　　金："十三五"预研项目(31513030301-6)

摘　　要：平面螺旋电感是射频集成电路中广泛应用的重要器件,它决定着一些组成关键电路的主要性能指标,因此对于平面螺旋电感进行优化设计显得极为重要.文章主要介绍通过对比研究片上螺旋电感参考地的布图方式、参考地的宽度和参考地距离中心线圈的距离等3个方面的不同配置对片上螺旋电感的影响来研究参考地的优化设计.电磁场仿真结果显示,参考地的引入会降低电感的感值L、恶化电感的品质因子Q,参考地越窄或者参考地越远,电感的感值越大,Q值越高,因此,可以通过配置参考地实现片上螺旋电感的优化设计.A bstract Planar spiral inductors are critical components widely used in radio-frequency integrated circuits(RFICs).They determine the main performance indicator of many key constituent circuits, so it is very important to optimize the design of planar spiral inductors. The paper illustrates the optimization techniques of the planar spiral inductor design by comparing the different configuration of the following three aspects, the layout of the on-chip spiral inductance reference ground, the width of the reference ground and the distance from the reference center to the center coil. The electro-magnetic simulation results show that the reference ground willreduce the inductance and deterioratethe inductor quality of factor Q. If reference ground is narrower or farther away from the central coil, the inductance and quality factor Q of the inductor will increase. Therefore, the optimal design of the on-chip spiral inductors can be achieved by configuring the reference ground.

关 键 词：集成电路 平面螺旋电感 感值 品质因子 参考地 

分 类 号：TN432[电子电信—微电子学与固体电子学]