An Injection-Locked Frequency Divider With Multiple Highly Nonlinear Injection Stages and Large Division Ratios

An injection-locked frequency divider (ILFD) with multiple highly nonlinear injection stages is discussed. Implemented in a standard 0.18-mum CMOS technology, measurement shows that multiple division ratios from 6 to 18 are achieved while the locking ranges are all above 1.7 GHz without the need for additional tuning. The ILFD can be locked at the maximum injection frequency of 11 GHz with the power consumption no more than 7.2 mW from a 1.8-V power supply

[1]  G. Reddy Gangasani,et al.  A Time-Domain Model for Predicting the Injection Locking Bandwidth of Nonharmonic Oscillators , 2006, IEEE Transactions on Circuits and Systems II: Express Briefs.

[2]  M. Tiebout,et al.  A CMOS direct injection-locked oscillator topology as high-frequency low-power frequency divider , 2004, IEEE Journal of Solid-State Circuits.

[3]  Beomsup Kim,et al.  A low-noise, 900-MHz VCO in 0.6-/spl mu/m CMOS , 1999 .

[4]  F.H. Huang,et al.  20 GHz CMOS injection-locked frequency divider with variable division ratio , 2005, 2005 IEEE Radio Frequency integrated Circuits (RFIC) Symposium - Digest of Papers.

[5]  Michael M. Green,et al.  High-frequency CML clock dividers in 0.13-/spl mu/m CMOS operating up to 38 GHz , 2005, IEEE Journal of Solid-State Circuits.

[6]  Liang-Hung Lu,et al.  A wide-band CMOS injection-locked ring oscillator , 2005, IEEE Microwave and Wireless Components Letters.

[7]  Carlo Samori,et al.  A 15-GHz broad-band ÷2 frequency divider in 0.13-μm CMOS for quadrature generation , 2005 .

[8]  Michael M. Green,et al.  High-Frequency CML Clock Dividers in 0 . 13-m CMOS Operating Up to 38 GHz , 2005 .

[9]  M. Fujishima,et al.  A 44-/spl mu/W 4.3-GHz injection-locked frequency divider with 2.3-GHz locking range , 2005, IEEE Journal of Solid-State Circuits.

[10]  Thomas H. Lee,et al.  A unified model for injection-locked frequency dividers , 2003, IEEE J. Solid State Circuits.

[11]  B. Nauta,et al.  A wide-band CMOS injection-locked frequency divider , 2004, 2004 IEE Radio Frequency Integrated Circuits (RFIC) Systems. Digest of Papers.

[12]  T. Lee,et al.  Superharmonic injection-locked frequency dividers , 1999, IEEE J. Solid State Circuits.