A low noise bulk-coupled Colpitis CMOS quadrature VCO

Yi Hsien Cho, Fong Cheng Chang, Ming Fong Lei, Ming Da Tsai, Hong Yeh Chang, Huei Wang

研究成果: 書貢獻/報告類型會議論文篇章同行評審

12 引文 斯高帕斯(Scopus)

摘要

This paper proposes a quadrature voltage-controlled oscillator (QVCO) using 0.18-μm 1P6M standard CMOS process. The QVCO is realized by combining two differential oscillators via the bulk terminals. Using this approach, we can reduce the power dissipation and remove the noise from the additional coupling transistors compared with conventional QVCOs. To improve the phase noise, the oscillator is composed of Colpitis topology for lower phase noise than its cross-coupled counterpart. Moreover, the Colpitts oscillator adopts only PMOS to achieve a better phase noise performance because PMOS has less 1/f noise than NMOS. The VCO operates from 4.9 to 5.5 GHz with more than 11 % tuning range. The measured phase noise at 600-kHz offset is -117 dBc/Hz at 5.2 GHz. The QVCO dissipates 10.8 mW at 1.8 V and achieves a good FOM of 185 dB.

原文???core.languages.en_GB???
主出版物標題2006 Asia-Pacific Microwave Conference Proceedings, APMC
頁面997-1000
頁數4
DOIs
出版狀態已出版 - 2006
事件2006 Asia-Pacific Microwave Conference, APMC - Yokohama, Japan
持續時間: 12 12月 200615 12月 2006

出版系列

名字Asia-Pacific Microwave Conference Proceedings, APMC
2

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???event.eventtypes.event.conference???2006 Asia-Pacific Microwave Conference, APMC
國家/地區Japan
城市Yokohama
期間12/12/0615/12/06

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