Presentation	2014-11-20 Q-factor analysis of the Colpitts oscillation considering loss passive elements Daisuke KOMADA, Tuya Wuren,
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Abstract(in English)	In recent years, with the development of wireless communication device, the study of low-noise oscillation circuit has become an important issue. There is a Q-factor parameter which is the design index of the low-noise oscillation circuit. The noise becomes smaller as the Q-factor becomes higher, and the accuracy of the oscillator increases. In this study, we derived the Q-factor formula from the circuit parameters of a Colpitts oscillator circuit. It was confirmed that, when we consider the loss of the oscillation circuit, there is an optimum value for the circuit parameters.
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Keyword(in English)	Oscillation circuit / Q-factor
Paper #	MW2014-131
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Conference Information
Committee	MW
Conference Date	2014/11/13(1days)
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Registration To	Microwaves (MW)
Language	JPN
Title (in Japanese)	(See Japanese page)
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Title (in English)	Q-factor analysis of the Colpitts oscillation considering loss passive elements
Sub Title (in English)
Keyword(1)	Oscillation circuit
Keyword(2)	Q-factor
1st Author's Name	Daisuke KOMADA
1st Author's Affiliation	Department of Electricity and Electronics Engineering, Kurume National College of Technology()
2nd Author's Name	Tuya Wuren
2nd Author's Affiliation	Department of Electricity and Electronics Engineering, Kurume National College of Technology
Date	2014-11-20
Paper #	MW2014-131
Volume (vol)	vol.114
Number (no)	318
Page	pp.pp.-
#Pages	4
Date of Issue