Title :
A 1.57 GHz fully integrated very low phase noise quadrature VCO
Author :
Vancorenland, P. ; Steyaert, M.
Author_Institution :
ESAT-MICAS, Heverlee, Belgium
Abstract :
A very low phase noise quadrature VCO is presented, featuring an inherently better figure of merit than the existing architectures. Through an improved circuit schematic and a special layout technique, the phase noise of the circuit could be lowered to stand amongst the lowest published. The circuit draws 15 mA from a 2 V supply. The phase noise is -136.5 dBc/Hz@600 kHz and the tuning range is 24% wide at a center frequency of 1.57 GHz. The figure of merit outperforms other published QVCOs.
Keywords :
CMOS integrated circuits; UHF integrated circuits; UHF oscillators; circuit tuning; integrated circuit layout; phase noise; voltage-controlled oscillators; 1.57 GHz; 15 mA; 2 V; CMOS; center frequency; circuit schematic; layout technique; phase noise; quadrature VCO; tuning range; CMOS technology; Circuit optimization; Coils; Costs; Energy consumption; Phase noise; Radio frequency; Resonance; Tuning; Voltage-controlled oscillators;
Conference_Titel :
VLSI Circuits, 2001. Digest of Technical Papers. 2001 Symposium on
Conference_Location :
Kyoto, Japan
Print_ISBN :
4-89114-014-3
DOI :
10.1109/VLSIC.2001.934210
