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-Feb-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
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