DocumentCode :
1479284
Title :
A 0.18 
m CMOS Quadrature VCO Using the Quadruple Push-Push Technique
Author :
Jang, Sheng-Lyang ; Shih, Chih-Chieh ; Liu, Cheng-Chen ; Juang, Miin-Horng
Author_Institution :
Dept. of Electron. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei, Taiwan
Volume :
20
Issue :
6
fYear :
2010
fDate :
6/1/2010 12:00:00 AM
Firstpage :
343
Lastpage :
345
Abstract :
This letter presents a new quadrature voltage-controlled oscillator (QVCO), which consists of two complementary cross-coupled voltage-controlled oscillators (VCOs) with two tail inductors. The two differential VCOs are coupled via two tail inductors to form a quadrature VCO. The proposed CMOS QVCO has been implemented with the TSMC 0.18 μm CMOS technology and the die area is 0.83 ?? 0.96 mm2. At the supply voltage of 1.45 V, the free-running frequency of the QVCO is tunable from 4.94 to 5.22 GHz as the tuning voltage is varied from 0.0 to 1.0 V. The total power consumption is 8.7 mW and the measured phase noise at 1 MHz frequency offset is -124.58 dBc/Hz at the oscillation frequency of 5.15 GHz and the figure of merit (FOM) of the proposed QVCO is -189.42 dBc/Hz.
Keywords :
CMOS integrated circuits; inductors; power consumption; voltage-controlled oscillators; CMOS QVCO; CMOS quadrature VCO; FOM; TSMC CMOS technology; die area; figure of merit; free-running frequency; frequency 1 MHz; frequency 4.94 GHz to 5.22 GHz; frequency 5.15 GHz; oscillation frequency; power 8.7 mW; power consumption; quadrature voltage-controlled oscillator; quadruple push-push technique; size 0.18 mum; supply voltage; tail inductors; tuning voltage; voltage 0 V to 1 V; voltage 1.45 V; CMOS; MEMS inductors; quadrature voltage-controlled oscillator (QVCO);
fLanguage :
English
Journal_Title :
Microwave and Wireless Components Letters, IEEE
Publisher :
ieee
ISSN :
1531-1309
Type :
jour
DOI :
10.1109/LMWC.2010.2047525
Filename :
5454341
Link To Document :
