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 :
Lab. Mater. et Microelectron. de Provence, 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 :
phase noise; signal generators; voltage-controlled oscillators; LC-tank; bandwidth 2.41 GHz to 2.64 GHz; current 20 mA; current consumption; phase noise; quadrature LC oscillator; quadrature signal generation; quadrature voltage-controlled oscillator; voltage 2.5 V; Bluetooth; Circuit optimization; Costs; Energy consumption; Phase noise; Signal generators; Transceivers; Tuning; Voltage-controlled oscillators; Wireless LAN; CMOS; LC-tank; QVCO; phase noise; quadrature signal generation;
Conference_Titel :
Microelectronics, 2007. ICM 2007. Internatonal Conference on
Conference_Location :
Cairo
Print_ISBN :
978-1-4244-1846-6
Electronic_ISBN :
978-1-4244-1847-3
DOI :
10.1109/ICM.2007.4497646
