DocumentCode
2642136
Title
CMOS LC quadrature oscillators with enhanced tuning range by selective mode switching
Author
Bagheri, Mahdi ; Bagheri, Rahim ; Larson, Lawrence E.
Author_Institution
Univ. of California San Diego, La Jolla, CA, USA
fYear
2012
fDate
17-19 June 2012
Firstpage
297
Lastpage
300
Abstract
Quadrature oscillators (QOSCs) can operate in two selective modes of quadrature oscillation. By controlling the mode of oscillation, different wide tuning range CMOS LC QOSCs have been designed. The measured tuning range is 60% for 3.7 GHz design and 94% for 1.3 GHz design. Phase noise measurement shows that by this modified series coupled QOSC (S-QOSC) a FOMT (figure of merit with tuning range) of 199 dB can be achieved.
Keywords
CMOS analogue integrated circuits; MMIC oscillators; UHF integrated circuits; UHF oscillators; circuit tuning; field effect MMIC; phase noise; CMOS LC quadrature oscillators; figure of merit; frequency 1.3 GHz; frequency 3.7 GHz; modified series coupled QOSC; phase noise measurement; quadrature oscillation; selective mode switching; wide tuning range CMOS LC QOSC; CMOS integrated circuits; Frequency measurement; Phase measurement; Phase noise; Quality of service; Tuning; CMOS; phase noise; quadrature oscillator; tuning range;
fLanguage
English
Publisher
ieee
Conference_Titel
Radio Frequency Integrated Circuits Symposium (RFIC), 2012 IEEE
Conference_Location
Montreal, QC
ISSN
1529-2517
Print_ISBN
978-1-4673-0413-9
Electronic_ISBN
1529-2517
Type
conf
DOI
10.1109/RFIC.2012.6242285
Filename
6242285
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