A filtering technique to lower LC oscillator phase noise

Hegazi E.; Sjoland H.; Abidi A.A.

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A filtering technique to lower LC oscillator phase noise

机译：降低LC振荡器相位噪声的滤波技术

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Based on a physical understanding of phase-noise mechanisms, anpassive LC filter is found to lower the phase-noise factor in andifferential oscillator to its fundamental minimum. Three fullynintegrated LC voltage-controlled oscillators (VCOs) serve as a proof ofnconcept. Two 1.1-GHz VCOs achieve -153 dBc/Hz at 3 MHz offset, biased atn3.7 mA from 2.5 V. A 2.1-GHz VCO achieves -148 dBc/Hz at 15 MHz offset,ntaking 4 mA from a 2.7-V supply. All oscillators use fully integratednresonators, and the first two exceed discrete transistor modules innfigure of merit. Practical aspects and repercussions of the techniquenare discussed

机译：基于对相位噪声机制的物理了解，发现无源LC滤波器可将差动振荡器中的相位噪声因子降低至其基本最小值。三个完全集成的LC压控振荡器（VCO）作为概念的证明。两个1.1 GHz VCO在3 MHz偏移时达到-153 dBc / Hz，从2.5 V偏置到3.7mA.2.1 GHz VCO在15 MHz偏移时达到-148 dBc / Hz，从2.7 V电源获取4 mA 。所有振荡器均使用完全集成的谐振器，前两个超过了优缺点的分立晶体管模块。讨论了该技术的实际方面和影响

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来源
《IEEE Journal of Solid-State Circuits》 |2001年第12期|p.1921-1930|共10页
作者
Hegazi E.; Sjoland H.; Abidi A.A.;
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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
中图分类一般性问题;基本电子电路;
关键词
UHF oscillators; passive filters; phase noise; voltage-controlled oscillators; 1.1 GHz; 2.1 GHz; 2.5 V; 2.7 V; 3.7 mA; 4 mA; LC oscillator; differential oscillator; figure of merit; integrated resonator; passive LC filter; voltage-controlled oscillator;

机译：UHF振荡器;无源滤波器;相位噪声;压控振荡器;1.1 GHz;2.1 GHz;2.5 V;2.7 V;3.7 mA;4 mA;LC振荡器;差分振荡器;品质因数;集成谐振器;无源LC滤波器;电压控制振荡器;

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机译：一种降低LC振荡器相位噪声的滤波技术

A filtering technique to lower LC oscillator phase noise

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