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Title
Japanese: 
English:A Transformer-Based Current-Reuse QVCO with a Capacitor Coupling Technique in 180 nm CMOS 
Author
Japanese: 池田 翔, 上村 龍也, 李 尚曄, 伊藤 浩之, 石原 昇, 益 一哉.  
English: Sho Ikeda, Tatsuya Kamimura, Sangyeop Lee, Hiroyuki Ito, Noboru Ishihara, Kazuya Masu.  
Language English 
Journal/Book name
Japanese: 
English: 
Volume, Number, Page         pp. 93-96
Published date Oct. 2013 
Publisher
Japanese: 
English: 
Conference name
Japanese: 
English:European Microwave Integrated Circuits Conference 2013 
Conference site
Japanese:ニュルンベルク 
English:Nuremberg 
Official URL http://www.eumweek.com/2013/default.asp
 
Abstract This paper proposes a low-power and low phasenoise current-reuse quadrature VCO using a combination of capacitor coupling and transformer feedback technique. Compared with conventional active coupled QVCO, the proposed QVCO can achieve a low phase noise characteristics with low power consumption. The proposed QVCO was fabricated in 180nm CMOS process technology and showed a 1MHz offset phase noise of -127 dBc/Hz at 3.97 GHz. The power consumption was 6.26mW with 1.0V supply voltage and a figure of merit (FOM) of the proposed QVCO was -191 dBc/Hz.

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