Title :
A low phase noise CMOS quadrature VCO for 2.4 GHz bluetooth/WLAN applications
Author :
Frioui, Oussama ; Haddad, Fayrouz ; ZaiD, Lakhdar ; Rahajandraibe, Wenceslas
Author_Institution :
CNRS, Marseille
Abstract :
This paper presents a quadrature voltage-controlled oscillator (QVCO) based on the coupling of two LC-tank VCOs. The QVCO could be tuned between 2.41 and 2.64 GHz, and showed a phase noise of -139 dBc/Hz at 1 MHz offset frequency from the carrier across the whole tuning range, for a current consumption of 20 mA with 2.5-V power supply. A figure-of- merit of -190 dBc/Hz is observed.
Keywords :
Bluetooth; CMOS integrated circuits; voltage-controlled oscillators; wireless LAN; Bluetooth/WLAN applications; QVCO; current consumption; low-phase noise CMOS quadrature VCO; quadrature voltage-controlled oscillator; Bluetooth; Circuits; Energy consumption; Filters; Phase noise; Radio frequency; Signal generators; Transceivers; Voltage-controlled oscillators; Wireless LAN; CMOS; LC-tank; VCO; phase noise; quadrature signal generation;
Conference_Titel :
Design & Technology of Integrated Systems in Nanoscale Era, 2007. DTIS. International Conference on
Conference_Location :
Rabat
Print_ISBN :
978-1-4244-1277-8
Electronic_ISBN :
978-1-4244-1278-5
DOI :
10.1109/DTIS.2007.4449510
