Title :
An innovative injection-locked frequency divider with transformer transconductance-boosted technique
Author :
Yeh, Yan-Liang ; Chang, Hong-Yeh ; Chen, Kevin ; Wu, Szu-Hsien
Author_Institution :
Dept. of Electr. Eng., Nat. Central Univ., Jhongli, Taiwan
Abstract :
An innovative injection-locked frequency divider (ILFD) with transformer transconductance (gm)-boosted technique is proposed in this paper. By using the gm-boosted technique to enhance the effective gm, the locking range of the ILFD can be further increased. The proposed ILFD was implemented in 0.18 μm CMOS process. The measured locking range is from 24.6 to 27 GHz, for a locking range of 2.4 GHz, without varactor tuning. The output power is higher than ±11 dBm, and the core DC power consumption is only 2 mW.
Keywords :
CMOS integrated circuits; MMIC frequency convertors; frequency dividers; transformers; CMOS process; ILFD; core DC power consumption; frequency 2.4 GHz; frequency 24.6 GHz to 27 GHz; innovative injection-locked frequency divider; size 0.18 mum; transformer transconductance-boosted technique; varactor tuning; CMOS integrated circuits; CMOS technology; Couplings; Frequency conversion; Power demand; Power generation; Power measurement; CMOS; injection-locked frequency divider (ILFD); transconductance (gm);
Conference_Titel :
Microwave Conference Proceedings (APMC), 2010 Asia-Pacific
Conference_Location :
Yokohama
Print_ISBN :
978-1-4244-7590-2
Electronic_ISBN :
978-1-902339-22-2
