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Design of low phase noise and low power modified current-reused VCOs for 10 GHz applications

机译:适用于10 GHz应用的低相位噪声和低功率修改的电流重用VCO的设计

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摘要

In this paper, we present low phase noise and low power of the modified current-reused VCOs for 10 GHz application. Three chips are implemented by the standard 0.18 um CMOS process. The improvement of the VCOs' three chips is described step by step. The traditional current-reused circuit with a wide tuning range of 17.2% is presented in the first chip. It has a phase noise-118 dBc/Hz at 1 MHz offset and 5 mW core power dissipation with a voltage supply under 1.5 V. The performance of FOM is as high as -191.8 dBc/Hz. Extra NMOS cross-coupled pairs inside the traditional current-reused circuit in the second chip is proposed to speed up the oscillation and stability. The phase noise is -106.19 dBc/Hz and the core power dissipation is 3 mW with a voltage supply under 1.5 V. For the third chip, two dc level shifters are adopted to improve the symmetry of the output signal and to decrease noise interference. The phase noise and core power are -106.9 dBc/Hz and 2.88 mW, respectively. It also has a high performance of FOM with -182.4 dBc/Hz.
机译:在本文中,我们介绍了针对10 GHz应用的修改后的电流重用VCO的低相位噪声和低功耗。三个芯片通过标准的0.18 um CMOS工艺实现。逐步描述了VCO的三个芯片的改进。第一个芯片展示了具有17.2%宽调谐范围的传统电流重用电路。它在1 MHz偏移下具有118 dBc / Hz的相位噪声,在1.5 V以下的电源下核心功耗为5mW。FOM的性能高达-191.8 dBc / Hz。建议在第二个芯片中的传统电流重用电路内使用额外的NMOS交叉耦合对,以加快振荡和稳定性。相位噪声为-106.19 dBc / Hz,电源电压低于1.5 V时,核心功耗为3 mW。对于第三个芯片,采用了两个直流电平转换器,以改善输出信号的对称性并降低噪声干扰。相位噪声和核心功率分别为-106.9 dBc / Hz和2.88 mW。它还具有-182.4 dBc / Hz的高性能FOM。

著录项

  • 来源
    《Microelectronics journal》 |2013年第2期|145-151|共7页
  • 作者单位

    Microwave Communication and Radio Frequency Integrated Circuit Lab., National Yunlin University of Science and Technology, Taiwan, ROC,Department and Institute of Engineering, National Yunlin University of Science and Technology, 123 University Road, Section 3, Douliou, Yunlin 64002, Taiwan, ROC;

    Department and Institute of Engineering, National Yunlin University of Science and Technology, 123 University Road, Section 3, Douliou, Yunlin 64002, Taiwan, ROC;

    Department and Institute of Engineering, National Yunlin University of Science and Technology, 123 University Road, Section 3, Douliou, Yunlin 64002, Taiwan, ROC;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    voltage-controlled oscillator (VCO); low phase noise; low power; current-reused; negative resistance enhancement;

    机译:压控振荡器(VCO);低相位噪声;低电量;当前重用;负电阻增强;

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