Analysis and Optimum Design of Differential Inductors Using Distributed Capacitance Model  

用分布电容模型分析和优化差分电感(英文)

作　　者：菅洪彦[1] 唐长文[1] 何捷[1] 闵昊[1] 

机构地区：[1]复旦大学专用集成电路与系统国家重点实验室,上海200433

出　　处：《Journal of Semiconductors》2005年第6期1077-1082,共6页半导体学报（英文版）

基　　金：上海市科委资助项目(批准号:037062019)~~

摘　　要：A distributed capacitance model for monolithic inductors is developed to predict the equivalently parasitical capacitances of the inductor.The ratio of the self-resonant frequency (f SR) of the differential-driven symmetric inductor to the f SR of the single-ended driven inductor is firstly predicted and explained.Compared with a single-ended configuration,experimental data demonstrate that the differential inductor offers a 127% greater maximum quality factor and a broader range of operating frequencies.Two differential inductors with low parasitical capacitance are developed and validated.建立了预测片上等效寄生电容的片上电感分布电容模型.预测和解释了差分电感的自激振荡频率的差异.实测数据显示,与单端驱动模式下的相同对称电感相比,差分驱动模式电感提高最大品质因数127%,具有更大的工作频率范围.设计和验证了低寄生电容的差分电感.

关 键 词：distributed capacitance model self-resonant frequency ratio quality factor differential inductor optimum design 

分 类 号：TM53[电气工程—电器]