標題: | A 0.6-V 30 GHz CMOS Quadrature VCO Using Microwave 1:1:1 Trifilar Transformer |
作者: | Syu, Jin-Siang Lu, Hsi-Liang Meng, Chinchun 電機工程學系 Department of Electrical and Computer Engineering |
關鍵字: | Quadrature voltage-controlled oscillator (QVCO);sideband rejection (SBR);trifilar transformer |
公開日期: | 1-二月-2012 |
摘要: | A 30 GHz trifilar-transformer-coupled quadrature voltage-controlled oscillator (QVCO) is proposed in this letter using 0.13 mu m CMOS technology. The trifilar transformer provides dc decoupling as well as ac mutual coupling from drain, gate, and source nodes. The mutual coupling increases the overall quality factor while the gate/drain-to-source coupling provides quadrature coupling. The proposed 1:1:1 trifilar transformer realization has lower ohmic loss than the conventional trifilar transformer realization and is especially suitable for high-frequency applications. As a result, the proposed 30 GHz QVCO has a -195 dBc/Hz figure of merit (FOM) and a maximum 41.6 dB sideband rejection (SBR) at a 0.6 V supply. |
URI: | http://dx.doi.org/10.1109/LMWC.2011.2180369 http://hdl.handle.net/11536/15673 |
ISSN: | 1531-1309 |
DOI: | 10.1109/LMWC.2011.2180369 |
期刊: | IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS |
Volume: | 22 |
Issue: | 2 |
起始頁: | 88 |
結束頁: | 90 |
顯示於類別: | 期刊論文 |