Title :
A low phase noise VCO for 5-GHz WiMAX/WLAN frequency synthesizer
Author :
Ko-Chi Kuo ; Chi-Wei Wu
Author_Institution :
Dept. of Comput. Sci. & Eng., Nat. Sun Yat-sen Univ., Kaohsiung, Taiwan
Abstract :
This paper presents fully integrated CMOS LC voltage-controlled oscillator (VCO) which exhibits low phase noise and low power consumption. To reduce the of VCO, a bias filter consists of inductor and capacitor is used to suppress noise. Moreover, the source of tail current uses a memory reduced tail transistor to procure low power consumption and avoids degradation of phase noise. The VCO is designed and implemented by 0.18-μm TSMC CMOS process and achieves -100.9 and -121.5 dBc/Hz at 100-kHz and 1MHz offset respectively. The current consumption is 1.5mA with a 1.5-V power supply. A figure-of-merit of -192.1 dBc/Hz is observed by simulation.
Keywords :
MMIC frequency convertors; MMIC oscillators; field effect MMIC; frequency synthesizers; low-power electronics; phase noise; voltage-controlled oscillators; TSMC CMOS process; WiMAX-WLAN frequency synthesizer; bias filter; capacitor; current 1.5 mA; frequency 5 GHz; fully integrated CMOS LC voltage-controlled oscillator; inductor; low phase noise; low phase noise VCO; low power consumption; memory reduced tail transistor; noise suppression; phase noise reduction; size 0.18 mum; tail current source; voltage 1.5 V; CMOS process; Radio frequency; Transceivers; Voltage-controlled oscillators; WiMAX; Wireless LAN; frequency synthesizer; low power; memory reduction; noise filtering; phase noise; voltage-controlled oscillators;
Conference_Titel :
Electron Devices and Solid-State Circuits (EDSSC), 2013 IEEE International Conference of
Conference_Location :
Hong Kong
DOI :
10.1109/EDSSC.2013.6628184