Design of a 24GHz low phase-noise,wide tuning-range VCO with optimized switches in capacitor array and bias filtering technique

Author

Yang, Dongxu ; Wang, Hongrui ; Zeng, Dajie ; Zheng, Hongda ; Zhang, Li ; Yu, Zhiping

Author_Institution

Inst. of Microelectron., Tsinghua Univ., Beijing, China

fYear

2010

Firstpage

696

Lastpage

698

Abstract

A low phase-noise 24GHz VCO (voltage-controlled oscillator) for mm-wave WLANs (wireless LANs) using IBM 90nm CMOS process is presented. A current source is used to minimize the impact due to the process variation. Biasing filter technique is adopted to improve the phase noise performance. In addition, optimized switches are proposed to prevent phase noise degradation. Simulation shows that -101dBc/Hz phase noise is achieved at 1MHz offset. The tuning range of the VCO spans from 24.2GHz to 29.1GHz. Total power consumption of the VCO core is 2.8mW from 0.8V supply.

Keywords

CMOS integrated circuits; MMIC oscillators; field effect MMIC; voltage-controlled oscillators; wireless LAN; CMOS process; MMIC oscillators; biasing filter technique; frequency 24 GHz; frequency 24.2 GHz to 29.1 GHz; phase noise degradation; power 2.8 mW; process variation; size 90 nm; tuning range; voltage 0.8 V; voltage-controlled oscillators; wireless LAN; Control systems; Inductors; Phase noise; Tuning; Voltage-controlled oscillators; CMOS; LC VCO; mm-wave; phase noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State and Integrated Circuit Technology (ICSICT), 2010 10th IEEE International Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-4244-5797-7

Type

conf

DOI

10.1109/ICSICT.2010.5667379

Filename

5667379