Title :
A low-voltage low-noise superharmonic quadrature oscillator
Author :
Naseh, Sasan ; Dooghabadi, Malihe Zarre ; Deen, M. Jamal
Author_Institution :
Eng. Dept., Ferdowsi Univ., Mashhad
fDate :
Aug. 31 2008-Sept. 3 2008
Abstract :
A qualitative analysis of the large-signal operation of cross-connected LC oscillators at steady state is presented. It provides a physically understandable picture of the amplitude stabilization in these oscillators. Based on the insights gained from the mechanism of operation, a new low-noise, low-voltage (Vdd as low as 0.6 V) quadrature oscillator utilizing the superharmonic coupling is proposed and verified with simulation. The same coupling scheme can be extended to multiphase signal generation.
Keywords :
harmonic oscillators (circuits); amplitude stabilization; cross-connected LC oscillators; low-voltage low-noise superharmonic quadrature oscillator; multiphase signal generation; signal operation qualitative analysis; steady state operation; superharmonic coupling; Circuit simulation; Coupling circuits; Energy consumption; Injection-locked oscillators; Phase noise; Radio frequency; Radiofrequency integrated circuits; Signal generators; Steady-state; Voltage-controlled oscillators; Low-noise; describing functions; low-voltage; multiphase oscillators; negative resistance oscillators; quadrature oscillators; superharmonic coupling;
Conference_Titel :
Electronics, Circuits and Systems, 2008. ICECS 2008. 15th IEEE International Conference on
Conference_Location :
St. Julien´s
Print_ISBN :
978-1-4244-2181-7
Electronic_ISBN :
978-1-4244-2182-4
DOI :
10.1109/ICECS.2008.4674875
