Design of Low Phase Noise Voltage Controlled Oscillator with Low Tuning-gain Change and Wide Linear Range

ZHENG Jin-wang; CHEN Hua; NI Kan; GUO Gui-liang; ZHANG Run-xi; LIU Sheng-you; LAI Qiang-tao; YAN Yue-peng

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Design of Low Phase Noise Voltage Controlled Oscillator with Low Tuning-gain Change and Wide Linear Range

更新时间：2026-09-04

- Design of Low Phase Noise Voltage Controlled Oscillator with Low Tuning-gain Change and Wide Linear Range
- Vol. 31, Issue 6, Pages: 84-90(2014)
- 作者机构：
  
  1. 1 中国科学院机构微电子研究所,北京,100029
  2. 2 华东师范大学微电子电路与系统研究所,上海,710054
- 作者简介：
- 基金信息：
- DOI：
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- Published：2014
- 稿件说明：
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郑金汪, 陈华, 倪侃, 郭桂良, 张润曦, 刘生有, 来强涛, 阎跃鹏. 低增益变化宽线性范围低噪声压控振荡器设计[J]. 微电子学与计算机, 2014, 31(6): 84-90.

ZHENG Jin-wang, CHEN Hua, NI Kan, et al. Design of Low Phase Noise Voltage Controlled Oscillator with Low Tuning-gain Change and Wide Linear Range[J]. 2014, 31(6): 84-90.
郑金汪, 陈华, 倪侃, 郭桂良, 张润曦, 刘生有, 来强涛, 阎跃鹏. 低增益变化宽线性范围低噪声压控振荡器设计[J]. 微电子学与计算机, 2014, 31(6): 84-90. DOI：

ZHENG Jin-wang, CHEN Hua, NI Kan, et al. Design of Low Phase Noise Voltage Controlled Oscillator with Low Tuning-gain Change and Wide Linear Range[J]. 2014, 31(6): 84-90. DOI：

摘要

应用 TSMC 0.18 μm CMOS工艺设计了一款低调谐增益变化，恒定调谐曲线间隔，恒定输出摆幅的低功耗低噪声宽带压控振荡器（Voltage Controlled Oscillator，VCO）.本振荡器的振荡频率覆盖1.153~1.911 GHz（49.5%）范围，相邻调谐曲线的覆盖范围大于50%，调谐增益变化范围为45.5~52.7 MHz/V（13.7%），相邻调谐曲线间距变化范围为43.2~45.9 MHz（5.9%），VCO输出波形的峰峰值为694~715 mV（3%），调谐曲线的线性范围为0.2~1.6 V（1.4 V）.在1.8 V的电源电压下，VCO在中心频率1.53 GHz处耗电电流为3.2 mA，相位噪声在1 MHz频偏处为-130.5 dBc/Hz，FOM值为-186.5 dBc/Hz.

Abstract

Based on 0.18 μm CMOS process

a low power low phase noise broadband VCO with low tuning-gain change constant tuning curve interval and constant output swing was presented. Switched capacitor array

varactor array with bias voltage and the tail current array was included in this VCO. The tuning range of VCO is 1.153~1.911 GHz(49.5%). The coverage of adjacent tuning curve is more than 50%. The tuning-gain of VCO is 45.5~52.7 MHz/V (13.7%). The space of adjacent tuning curve is 43.2~45.9 MHz(5.9%).The output swing of VCO is 694~715 mV(3%).The linear range of tuning curve is 0.2~1.6 V(1.4 V). At a 1.8 V supply and the center frequency 1.53 GHz

the VCO measures a phase noise of -130.5 dBc/Hz@1 MHz offset while dissipating 3.2 mA current. The FOM of the VCO is -186.5 dBc/Hz.

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