Title :
A 0.6V 2.2mW 58-to-73GHz divide-by-4 injection-locked frequency divider
Author :
Wu, Liang ; Luong, Howard C.
Author_Institution :
Dept. of Electron. & Comput. Eng., Hong Kong Univ. of Sci. & Technol., Hong Kong, China
Abstract :
A simple but effective locking range enhancement technique is proposed for LC-type divide-by-4 injection-locked frequency dividers (ILFDs) at millimeter-wave (mm-Wave) frequencies. By employing a 4th-order LC tank with the two frequency peaks properly designed at ω0 and 3ω0, the 3rd-order harmonic gets boosted that significantly enhances the injection efficiency and thus the locking range of divide-by-4 ILFDs. Implemented in 65-nm CMOS, the prototype measures a locking range of 21.9% from 58.53 to 72.92 GHz while consuming 2.2mW from a 0.6V-supply, which corresponds to an FoM of 6.54.
Keywords :
CMOS integrated circuits; frequency dividers; injection locked oscillators; 4th-order LC tank; CMOS; LC-type divide-by-4 ILFD; frequency 58 GHz to 73 GHz; injection-locked frequency divider; locking range enhancement technique; millimeter-wave frequencies; power 2.2 mW; size 65 nm; voltage 0.6 V; Band pass filters; CMOS integrated circuits; CMOS technology; Frequency conversion; Harmonic analysis; Power harmonic filters; Semiconductor device measurement;
Conference_Titel :
Custom Integrated Circuits Conference (CICC), 2012 IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4673-1555-5
Electronic_ISBN :
0886-5930
DOI :
10.1109/CICC.2012.6330594
