A 0.8-mW 55-GHz dual-injection-locked CMOS frequency divider

作者:Luo Tan Nian*; Chen Yi Jan Emery
来源:IEEE Transactions on Microwave Theory and Techniques, 2008, 56(3): 620-625.
DOI:10.1109/TMTT.2008.916868

摘要

This paper presents the dual-injection-locking technique to enhance the locking range of resonator-based frequency dividers. By fully utilizing the voltage and current injection of the input signal, the divider locking range is extended significantly. The 0.8-mW dual-injection-locked frequency divider was developed in 90-nm digital CMOS technology. The total chip size is 0.77 mm x 0.5 mm. Without any varactor or inductor tuning, the input signal frequency coverage of the divider is from 35.7 to 54.9 GHz. Combined with the excellent locking range and sub-milliwatt power consumption, the figure-of-merit of this work surpasses those of the previous resonator-based dividers by more than one order.