Title :
CMOS LC quadrature oscillator with phase mismatch compensation circuit for UWB application
Author :
Lin, Jia ; Arasu, Muthukumaraswarmy Annamalai ; Xiaojun, Yuan
Author_Institution :
Integrated Circuits & Syst. Lab., A*STAR (Agency for Sci., Technol. & Res.), Singapore, Singapore
fDate :
Jan. 9 2009-Dec. 11 2009
Abstract :
This paper presents a quadrature voltage controlled oscillator (QVCO) with phase mismatch compensation circuit implemented in 0.18¿m technology. The implemented LC-QVCO, working from 4.1GHz to 5.2GHz, targets UWB application. Using on-chip mixer, a post-compensation image band rejection of 45dB was achieved, which is an indirect measure of quadrature phase accuracy. A low phase noise of -116dBc/Hz at 1MHz offset away from the carrier frequency of 4.51GHz is demonstrated. For a power consumption of 9mW, a figure of merit (FoM) of 181dB is obtained.
Keywords :
CMOS integrated circuits; mixers (circuits); phase noise; ultra wideband technology; voltage-controlled oscillators; CMOS LC quadrature oscillator; LC-QVCO; UWB application; frequency 1 MHz; frequency 4.1 GHz to 5.2 GHz; frequency 4.51 GHz; on-chip mixer; phase mismatch compensation circuit; power 9 mW; quadrature voltage controlled oscillator; size 0.18 micron; CMOS technology; Capacitors; Energy consumption; Frequency; Integrated circuit technology; Phase measurement; Phase noise; Switches; Tuning; Voltage-controlled oscillators; IBR; LC QVCO; Linearity; Low phase noise; Mismatch Compensation Technique;
Conference_Titel :
Radio-Frequency Integration Technology, 2009. RFIT 2009. IEEE International Symposium on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-5031-2
Electronic_ISBN :
978-1-4244-5032-9
DOI :
10.1109/RFIT.2009.5383737
