Title :
A 60GHz wideband injection-locked frequency divider with adaptive-phase-enhancing technique
Author :
Wang, Hongrui ; Zhang, Lei ; Yang, Dongxu ; Zeng, Dajie ; Zhang, Li ; Wang, Yan ; Yu, Zhiping
Author_Institution :
Inst. of Microelectron., Tsinghua Univ., Beijing, China
Abstract :
A 60-GHz injection-locked frequency divider (ILFD) with quadrature outputs is designed in 90-nm CMOS technology. An adaptive-coupling scheme is proposed to enlarge the phase shift for a wide-band locking range. The measured results exhibit an input locking range of 12.1GHz or 20.5%from 52.7 to 64.8GHz at an incident power of 0dBm. The core circuit consumes 8.6mW from a 1.2V power supply and occupies an area of 360μm×230μm2.
Keywords :
CMOS integrated circuits; field effect MIMIC; frequency dividers; phase shifters; CMOS technology; adaptive-coupling scheme; adaptive-phase-enhancing technique; frequency 60 GHz; phase shift; power 8.6 mW; quadrature outputs; size 90 nm; voltage 1.2 V; wideband injection-locked frequency divider; CMOS integrated circuits; Couplings; Frequency conversion; Frequency measurement; Resonant frequency; Voltage measurement; 60GHz; CMOS; adaptive coupling; injection-locked frequency divider (ILFD);
Conference_Titel :
Radio Frequency Integrated Circuits Symposium (RFIC), 2011 IEEE
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4244-8293-1
Electronic_ISBN :
1529-2517
DOI :
10.1109/RFIC.2011.5940605
