Analysis of characteristic functions for equivalent circuit model in monolithic transformer  

作　　者：吴忠洁 Lu Jingxue Huang Fengyi Jiang Nan 

机构地区：[1]Institute of Information Science and Engineering,Southeast University,Nanjing 210096,P.R.China [2]S-TEK Research Center,Aoya Microeleclxonics,Zhangjiang High-Tech Park,Shanghai 201203,P.R.China

出　　处：《High Technology Letters》2012年第2期124-127,共4页高技术通讯（英文版）

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.

关 键 词：TRANSFORMER parameter extraction compact model radio frequency integrate circuit（（RFIC） 

分 类 号：O174.52[理学—数学] TN248.4[理学—基础数学]