Title :
A CMOS LC VCO with novel negative impedance design for wide-band operation
Author :
Wu, Chang-Hsi ; Jian, Guan-Xiu
Author_Institution :
Dept. of Electron. Eng., Lunghwa Univ. of Sci. & Technol., Taoyuan, Taiwan
Abstract :
A 5.2 GHz CMOS LC voltage-controlled oscillator (VCO) for UWB receiver, fabricated using CMOS 0.18μm process, is presented in this paper. The tuning range of the proposed VCO is mainly broadened by novel negative resistance and tapping inductance techniques. Measured results of the proposed VCO reveal phase noise of -116.708/Hz at 1 MHz offset and tuning range of 4.567GHz~5.832GHz (24.32%) while consuming only 3.92mW under the supply voltage of 0.8V. The core area is 0.732mm × 0.633mm.
Keywords :
CMOS integrated circuits; circuit tuning; electric impedance; inductance; phase noise; radio receivers; ultra wideband communication; voltage-controlled oscillators; CMOS LC VCO; CMOS process; UWB receiver; frequency 1 MHz; frequency 4.567 GHz to 5.832 GHz; frequency 5.2 GHz; negative impedance design; negative resistance; phase noise; power 3.92 mW; size 0.18 mum; tapping inductance; tuning range; voltage 0.8 V; voltage-controlled oscillator; wide-band operation; CMOS process; Electrical resistance measurement; Impedance; Inductance; Noise measurement; Phase measurement; Phase noise; Tuning; Voltage-controlled oscillators; Wideband; UWB; VCO; novel negative resistance; tapping inductance; tuning range;
Conference_Titel :
Radio Frequency Integrated Circuits Symposium (RFIC), 2010 IEEE
Conference_Location :
Anaheim, CA
Print_ISBN :
978-1-4244-6240-7
DOI :
10.1109/RFIC.2010.5477288
