Scalable Compact Circuit Model for Differential Spiral Transformers in CMOS RFICs

Author

Gao, Wei ; Jiao, Chao ; Liu, Tao ; Yu, Zhiping

Author_Institution

Inst. of Microelectron., Tsinghua Univ., Beijing

Volume

53

Issue

9

fYear

2006

Firstpage

2187

Lastpage

2194

Abstract

A new compact circuit model for differential spiral transformers in CMOS radio frequency integrated circuits (RFICs) is developed in this paper. The model consists of two coupled "2-pi" subcircuits for each inductor coil in the transformer. All the values of the circuit elements can be analytically calculated according to the process parameters and the device\´s geometric dimensions, making the model highly scalable and predictive. The model has very good accuracy as validated by comparison to a 2.5-dimensional full-wave numerical electromagnetic field solver

Keywords

CMOS integrated circuits; differential transformers; integrated circuit modelling; radiofrequency integrated circuits; CMOS RFIC; differential spiral transformers; electromagnetic field solver; inductor coil; scalable compact circuit model; Coils; Coupling circuits; Inductors; Integrated circuit modeling; Predictive models; Radiofrequency integrated circuits; Semiconductor device modeling; Solid modeling; Spirals; Transformers; “; CMOS; differential spiral transformers; radio frequency integrated circuits (RFIC); scalable compact model;

fLanguage

English

Journal_Title

Electron Devices, IEEE Transactions on

Publisher

ieee

ISSN

0018-9383

Type

jour

DOI

10.1109/TED.2006.880230

Filename

1677852