Analysis of characteristic functions for equivalent circuit model in monolithic transformer

作     者：吴忠洁 Lu Jingxue Huang Fengyi Jiang Nan 

作者机构：Institute of Information Science and EngineeringSoutheast UniversityNanjing 210096P.R.China S-TEK Research CenterAoya MicroeleclxonicsZhangjiang High-Tech ParkShanghai 201203P.R.China 

出 版 物：《High Technology Letters》 (高技术通讯（英文版）)

年 卷 期：2012年第18卷第2期

页      面：124-127页

核心收录：

学科分类：080901[工学-物理电子学] 07[理学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 070104[理学-应用数学] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 0701[理学-数学] 

基　　金：the National High Technology Research and Development Program of China(2009AA01Z228,2009AA01Z261,2009AAO11503) the National Great Science Specific Projict(2009ZX 03007-001-01) 

主　　题：transformer parameter extraction compact model radio frequency integrate circuit((RFIC) 

摘      要：A model of monolithic transformers is presented, which is analyzed with characteristic functions. A closed- form analytical approach to extract all the model parameters for the equivalent circuit of Si-based on-chip transformers is proposed. A novel de-coupling technique is first developed to reduce the complexity in the Y parameters for the transformer, and the model parameters can then be extracted analytically by a set of characteristic functions. Simulation based on the extracted parameters has been carried out for transformers with different structures, and good accuracy is obtained compared to a 3-demensional full-wave numerical electro- magnetic field solver. The presented approach will be very useful to provide a scalable and wide-band compact circuit model for Si-based RF transformers.