Title :
A 50-to-62GHz wide-locking-range CMOS injection-locked frequency divider with transformer feedback
Author :
Wong, Yu-Hang ; Lin, Wei-Heng ; Tsai, Jeng-Han ; Huang, Tian-Wei
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei
fDate :
June 17 2008-April 17 2008
Abstract :
A 50-to-62 GHz injection-locked frequency divider (ILFD) with transformer feedback technique is designed in 0.13-mum CMOS technology for wide locking range. The measurement results show that the free-running frequency is 55.3 GHz and the total locking range is 12 GHz (>20%) at the input power level of 0 dBm while consuming 10.8 mW from a 0.9 V power supply. The phase noise of the divider is -124.93 dBc/Hz at 1 MHz offset from the carrier. This wide locking range ILFD is suitable for integration into a phase-lock-loop (PLL) system because of its small size and no need of extra control signal.
Keywords :
CMOS integrated circuits; frequency dividers; phase locked loops; phase noise; transformers; free-running frequency; frequency 50 GHz to 62 GHz; frequency 55.3 GHz; phase noise; phase-lock-loop system; transformer feedback; wide-locking-range CMOS injection-locked frequency divider; CMOS technology; Control systems; Feedback; Frequency conversion; Frequency measurement; Phase locked loops; Phase noise; Power measurement; Power supplies; Size control; 60GHz; CMOS; injection-locked frequency divider (ILFD); millimeter-wave frequency; transformer feedback; wide locking range;
Conference_Titel :
Radio Frequency Integrated Circuits Symposium, 2008. RFIC 2008. IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
978-1-4244-1808-4
Electronic_ISBN :
1529-2517
DOI :
10.1109/RFIC.2008.4561471
