Title :
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
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;
Journal_Title :
Electron Devices, IEEE Transactions on
DOI :
10.1109/TED.2006.880230
