Title :
A new highly-scalable equivalent circuit model for on-chip symmetrical transformer with accurate substrate modeling
Author :
Wang, Chuan ; Liao, Huailin ; Li, Chen ; Xiong, Yongzhong ; Huang, Ru
Author_Institution :
Inst. of Microelectron., Peking Univ., Beijing
fDate :
June 17 2008-April 17 2008
Abstract :
A new equivalent circuit model for on-chip symmetrical transformers is presented with all the model elements driven from fabrication specifications. Two extra coupled transformer loops are developed for each coil to calculate the parameters of skin effect, proximity effect and reflective effect of substrate eddy current respectively. Model accuracy is demonstrated by comparing simulated and measured S-parameters, coils inductance, coupling coefficient, and maximum available gain over a wide range of geometry configuration.
Keywords :
S-parameters; coils; eddy currents; equivalent circuits; geometry; integrated circuit modelling; skin effect; transformers; S-parameters; coils inductance; coupled transformer loops; coupling coefficient; equivalent circuit model; geometry configuration; onchip symmetrical transformer; proximity effects; reflective effects; skin effects; substrate eddy current; substrate modeling; Circuit simulation; Coils; Coupling circuits; Eddy currents; Equivalent circuits; Fabrication; Inductance measurement; Proximity effect; Skin effect; Solid modeling; Transformers; baluns; eddy current; equivalent circuit; physical model;
Conference_Titel :
Radio Frequency Integrated Circuits Symposium, 2008. RFIC 2008. IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
978-1-4244-1808-4
Electronic_ISBN :
1529-2517
DOI :
10.1109/RFIC.2008.4561530