孙凯, 张健, 刘昱, 李志强, 陈延湖. 采用分布式谐振回路的毫米波CMOS压控振荡器[J]. 微电子学与计算机, 2015, 32(11): 129-132,136.
引用本文: 孙凯, 张健, 刘昱, 李志强, 陈延湖. 采用分布式谐振回路的毫米波CMOS压控振荡器[J]. 微电子学与计算机, 2015, 32(11): 129-132,136.
SUN Kai, ZHANG Jian, LIU Yu, LI Zhi-qiang, CHEN Yan-hu. A Millimeter-wave CMOS VCO Using Distributed LC Tank[J]. Microelectronics & Computer, 2015, 32(11): 129-132,136.
Citation: SUN Kai, ZHANG Jian, LIU Yu, LI Zhi-qiang, CHEN Yan-hu. A Millimeter-wave CMOS VCO Using Distributed LC Tank[J]. Microelectronics & Computer, 2015, 32(11): 129-132,136.

采用分布式谐振回路的毫米波CMOS压控振荡器

A Millimeter-wave CMOS VCO Using Distributed LC Tank

  • 摘要: 设计了一款应用于毫米波频率综合器的压控振荡器(Voltage Controlled Oscillator,VCO).振荡器谐振回路采用分布式电感电容结构,相比传统结构可以提高振荡频率,降低振荡所需的环路增益;优化谐振网络中电容的设计,提高调谐范围;电磁仿真毫米波段电感,提高品质因数,降低相位噪声.电路设计采用SMIC 40 nm 1P6M RF CMOS工艺.仿真结果表明,频率调谐范围为56.1~61.2 GHz(5.1 GHz,8.7%),振荡中心频率处的相位噪声为-88 dBc/Hz@1 MHz.电源电压0.8 V下,电路功耗为3.3 mW.芯片核心面积为0.013 5 mm2.

     

    Abstract: A voltage controlled oscillator (VCO) was designed for millimeter-wave band frequency synthesizer. The oscillation frequency was enhanced and the minimum required loop gain was decreased compared to the conventional structure by using the distributed LC tank. Frequency tuning range was enhanced by optimizing the design of capacitance in the LC tank. Differential inductor was designed and modeled for millimeter-wave band using electromagnetic simulator. The quality factor and phase noise was improved due to the proposed inductor. The design is based on SMIC 40 nm 1P6M RF CMOS process. Post-simulation shows that the VCO has a tuning range of 5.1 GHz (8.7%) from 56.1 GHz to 61.2 GHz. The phase noise is -88 dBc/Hz at 1 MHz offset at the center frequency. The VCO consumes 3.3 mW from a 0.8 V power supply and the chip area is 0.013 5 mm2.

     

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