Title :
A 4.9–6.9 GHz LC VCO with low-phase-noise
Author :
Shanliang Gan ; Yuan Wang ; Jian Cao ; Song Jia ; Xing Zhang
Author_Institution :
Key Lab. of Microelectron. Devices & Circuits (MoE), Peking Univ., Beijing, China
Abstract :
A wide-tuning-range and low-phase-noise LC voltage controlled oscillator (VCO) is presented in this paper. With the variable current source and source damping resistor, the proposed VCO exhibits a phase noise of -115dBc/Hz at 1MHz offset from 6 GHz carrier, and a power dissipation of 1.4mW. In addition, its tuning range is from 4.9 to 6.9 GHz with the MIM capacitor bank and differentially controlled varactors. The capacitor bank is used for wide tuning range and the differentially controlled varactors are useful for suppressing power supply noise.
Keywords :
CMOS integrated circuits; MIM devices; MMIC oscillators; damping; field effect MMIC; integrated circuit noise; phase noise; resistors; varactors; voltage-controlled oscillators; MIM capacitor bank; differentially controlled varactors; frequency 1 MHz; frequency 4.9 GHz to 6.9 GHz; low phase noise LC VCO; power dissipation; power supply noise suppression; source damping resistor; tuning range; variable current source; voltage controlled oscillator; wide tuning range LC VCO; CMOS integrated circuits; Tuning; Voltage-controlled oscillators; Wireless communication; differential tuning; low phase noise; source damping resistor; voltage controlled oscillator (VCO); wide tuning range;
Conference_Titel :
Electron Devices and Solid-State Circuits (EDSSC), 2013 IEEE International Conference of
Conference_Location :
Hong Kong
DOI :
10.1109/EDSSC.2013.6628209
