Title :
A divide-by-two injection-locked frequency divider with 13-GHz locking range in 0.18-μm CMOS technology
Author :
Yi, Xiang ; Boon, Chirn Chye ; Lin, Jia Fu ; Do, Manh Anh ; Yeo, Kiat Seng ; Lim, Wei Meng
Author_Institution :
Sch. of Electr. Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
In this paper, a new divide-by-two RC-oscillator-based injection-locked frequency divider is proposed. We present a symmetrical injection circuit, with only differential inputs, to realize multi-phase injection and hence the locking range is improved. Our proposed frequency divider can output quadrature signals which are useful for modern transceiver. Post-layout simulation results in a 0.18-μm CMOS Technology show that, the divider can be locked from 2 GHz to 15 GHz, draws a current less than 4 mA. The core area is only 30 μm by 30 μm.
Keywords :
CMOS integrated circuits; MMIC frequency convertors; MMIC oscillators; UHF frequency convertors; UHF integrated circuits; UHF oscillators; field effect MMIC; frequency dividers; injection locked oscillators; CMOS technology; divide-by-two RC-oscillator; divide-by-two injection-locked frequency divider; frequency 13 GHz; frequency 2 GHz to 15 GHz; multiphase injection; post-layout simulation; quadrature signals; size 0.18 mum; symmetrical injection circuit; transceiver; CMOS integrated circuits; CMOS technology; Frequency conversion; Power demand; Ring oscillators; Transistors; Frequency divider; injection locked; multi-phase injection; quadrature; ring oscillator;
Conference_Titel :
Integrated Circuits (ISIC), 2011 13th International Symposium on
Conference_Location :
Singapore
Print_ISBN :
978-1-61284-863-1
DOI :
10.1109/ISICir.2011.6131916
