Title :
A 24GHz low phase noise feedback CMOS LC-VCO
Author :
Yang, Dongsheng ; Zhang, Lei ; Wang, Hongrui ; Zeng, Dajie ; Zhou, Chunyuan ; Yang, Dongxu ; Qia, He
Author_Institution :
Inst. of Microelectron., Tsinghua Univ., Beijing, China
Abstract :
This paper proposes an effective method to improve phase noise in voltage controlled oscillator (VCO), which is realized with 90nm RF CMOS technology. A current source is used in this design to control the VCO power consumption, while the filtering technique is incorporated to reduce VCO phase noise, and a feedback loop from output to input is also adopted to further improve the phase noise performance. A -100.85 - -104.7dBc/Hz phase noise is achieved at 1MHz offset, and the frequency tuning range(FTR) spans from 24.7GHz to 28.8GHz, with a total power consumption of 5.5mW from 1.2V supply.
Keywords :
CMOS integrated circuits; microwave integrated circuits; microwave oscillators; voltage-controlled oscillators; RF CMOS technology; current source; feedback loop; filtering technique; frequency 1 MHz; frequency 24 GHz; frequency 24.7 GHz to 28.8 GHz; frequency tuning range; low phase noise feedback LC-VCO; power 5.5 mW; power consumption; size 90 nm; voltage 1.2 V; voltage controlled oscillator; Capacitors; Phase locked loops; Phase noise; Tuning; Voltage-controlled oscillators; CMOS; Feedback; LC VCO; Phase Noise; mm-Wave;
Conference_Titel :
Electron Devices and Solid-State Circuits (EDSSC), 2011 International Conference of
Conference_Location :
Tianjin
Print_ISBN :
978-1-4577-1998-1
Electronic_ISBN :
Pending
DOI :
10.1109/EDSSC.2011.6117707
