Investigation of On-Chip Phase-Noise Reduction Using Self-Injection Technique on Fully Integrated Frequency Dividers Conference Paper uri icon

abstract

  • Significant phase-noise improvement is demonstrated using a self-injection technique on a fully integrated 0.18-μm CMOS divide-by-3 (1/3) injection-locked frequency divider (ILFD). The self-injection is realized with an odd-to-even harmonic converter followed by a feedback-amplifier. The self-injection 1/3 ILFD shows superior injection efficiency due to the increased self-injection signal which results in substantial phase noise reduction. The phase noise is improved by 14.77 dB at 1-MHz offset when the self-injection loop is enabled. The core of the 1/3 ILFD occupies 0.048-mm2 area and dissipates 18.2-mW from a 1.8-V power supply. The phase-noise reduction technique can be implemented for other kinds of ILFDs. © 2012 IEEE.

author list (cited authors)

  • Lee, S., Kim, J., & Nguyen, C.

citation count

  • 1

publication date

  • December 2012

publisher