A new compact model has been introduced to model on-chip spiral transformers.Unlike conventional models,which are often a compound of two spiral inductor models (i.e.,the combination of two coupled Π or 2-Π sub-circuits),our new model only uses 12 elements to model the whole structure in the form ofT topology.The new model is based on the physical meaning,and the process of model derivation is also presented.In addition,a simple parameter extraction procedure is proposed to get the elements' values without any fitting and optimization.In this procedure,a new method has been developed for the parameter extraction of the ladder circuit,which is commonly used to represent the skin effect.In order to verify the model's validity and accuracy,we have compared the simulated and measured self-inductance,quality factor,coupling coefficient and insertion loss,and an excellent agreement has been found over a broad frequency range up to the resonant frequency.
参考文献
| [1] | Sangsoo K,Jeong-Geun K,Taeksang S,et al.K-and Q-bands CMOS frequency sources with X-band quadrature VCO.IEEE Trans Microw Theory Tech,2005,53(9):2789 |
| [2] | Simburger W,Wohlmuth H D,Weger P,et al.A monolithic transformer coupled 5-W silicon power amplifier with 59％ PAE at 0.9GHz.IEEE J Solid-State Circuits,1999,34(12):1881 |
| [3] | Cassan D J,Long J R.A 1-V transformer-feedback low-noise amplifier for 5-GHz wireless LAN in 0.18 μm CMOS.IEEE J Solid-State Circuits,2003,38(3):427 |
| [4] | Long J R.Monolithic transformers for silicon RFIC design.IEEE J Solid-State Circuits,2000,35(9):1368 |
| [5] | Ng K T,Rejaei B,Burghartz J N.Substrate effects in monolithic RF transformers on silicon.IEEE Trans Microw Theory Tech,2002,50(1):377 |
| [6] | EI-Ghamiti O,Kerherve E,Begueret J B.Modeling and characterization of on-chip transformers for silicon RFIC.IEEE Trans Microw Theory Tech,2007,55(4):607 |
| [7] | Lin L,Yin W Y,Mao J F,et al.Performance characterization of circular silicon transformers.IEEE Trans Magnetics,2008,44(12):4684 |
| [8] | Wang C,Liao H L,Xiong Y Z,et al.A physics-based equivalentcircuit model for on-chip symmetric transformers with accurate substrate modeling.IEEE Trans Microw Theory Tech,2009,57(4):980 |
| [9] | Huailin L,Chuan W.A new approach to parameter extraction for on-chip symmetric transformers.IEEE International Symposium on Radio-Frequency Integration Technology,2009:257 |
| [10] | Mayevskiy Y,Watson A,Francis P,et al.A new compact model for monolithic transformers in silicon-based RFICs.IEEE Microw Wireless Compon Lett,2005,15(6):419 |
| [11] | El-Gharniti O,Kerherve E,Begueret J B,et al.Modeling of integrated monolithic transformers for silicon RF IC.Proceedings of the 11 th IEEE International Conference on Electronics,Circuits and Systems,2004:137 |
| [12] | H M Hsu,Tseng C W,Chan K Y.Characterization of on-chip transformer using microwave technique.IEEE Trans Electron Devices,2008,55(3):833 |
| [13] | Huang F Lu J,Jiang N,et al.Frequency-independent asymmetric double-π equivalent circuit for on-chip spiral inductors:physics-based modeling and parameter extraction.IEEE J SolidState Circuits,2006,41 (10):2272 |
| [14] | Kim S,Neikirk D P.Compact equivalent circuit model for the skin effect.IEEE MTT-S International Microwave Symposium Digest,1996,3:1815 |
| [15] | Lin Y S,Chen C Z,Liang H B,et al.High-performance on-chip transformers with partial polysilicon pauerned ground shields (PGS).IEEE Trans Electron Devices,2007,54(1):157 |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%