DocumentCode :
922536
Title :
A wide locking range and low Voltage CMOS direct injection-locked frequency divider
Author :
Chuang, Y.-H. ; Lee, Seok-Hee ; Yen, R.-H. ; Jang, S.-L. ; Lee, J.-F. ; Juang, M.-H.
Author_Institution :
Dept. of Electron. Eng., Nat. Taiwan Inst. of Technol., Taipei, Taiwan
Volume :
16
Issue :
5
fYear :
2006
fDate :
5/1/2006 12:00:00 AM
Firstpage :
299
Lastpage :
301
Abstract :
A low voltage and wide locking range injection-locked frequency divider using a standard 0.18-μm complementary metal oxide semiconductor (CMOS) process is presented. The wide locking range and the low-voltage operation are performed by adding an injection nMOS between the differential outputs of the divider that contains on-chip transformers which result in positive feedback loops to swing the output signals above the supply and below the ground potential. This dual-swing capability maximizes the carrier power and achieves low-voltage performance. The measurement results show that at the supply voltage of 0.75-V, the divider free-running frequency is 2.02 GHz, and at the incident power of 0 dBm the locking range is about 1.49 GHz (36.88%), from the incident frequency 3.27 to 4.64GHz.
Keywords :
CMOS integrated circuits; frequency dividers; injection locked oscillators; microwave frequency convertors; 0.18 micron; 0.75 V; 2.02 GHz; 3.27 to 4.64 GHz; CMOS process; complementary metal oxide semiconductor process; direct injection-locked frequency divider; divider free-running frequency; injection nMOS; low-voltage operation; on-chip transformers; positive feedback loops; wide locking range; CMOS process; Coils; Feedback loop; Frequency conversion; Frequency synthesizers; Injection-locked oscillators; Logic; Low voltage; Transformers; Voltage-controlled oscillators; Complementary metal oxide semiconductor (CMOS); injection-locked frequency divider (ILFD); low-voltage; transformer; wide locking range;
fLanguage :
English
Journal_Title :
Microwave and Wireless Components Letters, IEEE
Publisher :
ieee
ISSN :
1531-1309
Type :
jour
DOI :
10.1109/LMWC.2006.873489
Filename :
1626267
Link To Document :
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