Title :
A Very Low Phase Noise Fully Integrated Quadrature LC Oscillator for 2.4 GHz band Applications
Author :
Frioui, Oussama ; ZaiD, Lakhdar ; Rahajandraibe, Wenceslas ; Haddad, Fayrouz
Author_Institution :
L2MP -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 :
UHF oscillators; voltage-controlled oscillators; LC-tank VCO; current 20 mA; frequency 2.41 GHz; frequency 2.64 GHz; low phase noise; quadrature voltage-controlled oscillator; voltage 2.5 V; Bluetooth; Circuit optimization; Costs; Energy consumption; Phase noise; Radio frequency; Signal generators; Transceivers; Tuning; Voltage-controlled oscillators; CMOS; LC-tank; QVCO; phase noise; quadrature signal generation;
Conference_Titel :
Radio-Frequency Integration Technology, 2007. RFIT 007. IEEE International Workshop on
Conference_Location :
Rasa Sentosa Resort
Print_ISBN :
978-1-4244-1307-2
Electronic_ISBN :
978-1-4244-1308-9
DOI :
10.1109/RFIT.2007.4443977
