电子器件2025，Vol.48Issue(2)：250-256,7.DOI:10.3969/j.issn.1005-9490.2025.02.003
采用有源电感的宽调谐范围低相位噪声紧凑型VCO
Compact VCO with Wide Tuning Range and Low Phase Noise Using Active Inductor
摘要
Abstract
An inductor-capacitor voltage-controlled oscillator(LC VCO)with high integration level,wide tuning range and low phase noise is proposed based on a novel voltage-controlled active inductor(VCAI).The VCAI is mainly composed of a first gyration loop,a second gyration loop,and a noise suppression branch to obtain adjustable inductance value and low noise characteristics.Then instead of the traditional passive spiral inductor,the VCAI is applied to LC VCO in order to not only increase the tuning range of oscillation fre-quency,but also improve the phase noise,and reduce the VCO chip area greatly.Furthermore,the employment of the source degradation negative resistance generation circuit in VCO reduces the noise current flowing into the LC resonant circuit and improves the phase noise.Based on TSMC 0.18 μm RFCMOS process,the performance of the LC VCO is verified by using Cadence Virtuoso tool.By tuning the external bias voltage of Vtune1 in VCAI from 0 V to 1.2 V,the LC VCO achieves good comprehensive performance.The tunable oscil-lation frequency ranges from 1.02 to 3.55 GHz,and the tuning range is 110.7%.The phase noise ranges from-83.6 to-92.06 dBc/Hz at a frequency offset of 1 MHz,and the power consumption ranges from 7.26 to 13.33 mW.关键词
压控振荡器/有源电感/高集成度/调谐范围/相位噪声Key words
voltage-controlled oscillator/active inductor/high integration level/tuning range/phase noise分类
信息技术与安全科学引用本文复制引用
吴银烽,张万荣,谢红云,金冬月,那伟聪,任衍贵,高文静,李楠星..采用有源电感的宽调谐范围低相位噪声紧凑型VCO[J].电子器件,2025,48(2):250-256,7.基金项目
国家自然科学基金资助项目(61774012,61574010,61901010) （61774012,61574010,61901010）
北京市自然科学基金资助项目(4192014,4204092) （4192014,4204092）
中国博士后科学基金资助项目(2019M650404) （2019M650404）
北京市朝阳区博士后科研经费资助项目(2019ZZ-9) （2019ZZ-9）
