半导体学报2008，Vol.29Issue(11)：2106-2109,4.
3GHz低功耗低相位噪声的带自偏置电流源的LC压控振荡器
A 3GHz Low-Power and Low-Phase-Noise LC VCO with a Self-Biasing Current Source
摘要
Abstract
A fully integrated 3GHz low-power and low-phase-noise voltage-controlled oscillator(VCO)with a self-biasing current source was implemented in a standard 0.18μm CMOS process.A trade-off between noise and power was realized through the optimization of the improved current source.The VCO can be tuned from 2.83 to 3.25GHz with a 13.8% tuning range.The measured phase noise at 1MHz offset is-111dBc/Hz at a frequency of 3.22GHz while the core circuit draws less than 2mA from a 1.8V supply voltage.These results make the circuit suitable for a 5GHz wireless local area network(WLAN)receiver and 3.4 to 3.6GHz world interoperability for microwave access(WiMAX)application.关键词
3GHz LC压控振荡器/相位噪声/自偏置电流源/互补-MOS型集成电路Key words
3GHz LC VCO/phase noise/self-biasing current source/CMOS分类
信息技术与安全科学引用本文复制引用
陈普锋,李志强,黄水龙,张海英,叶甜春..3GHz低功耗低相位噪声的带自偏置电流源的LC压控振荡器[J].半导体学报,2008,29(11):2106-2109,4.基金项目
国家自然科学基金(批准号:60276021)和国家重点基础研究发展规划(批准号:G2002CB311901)资助项目 （批准号:60276021）
Project supported by the National Natural Science Foundation of China(No.60276021)and the State Key Development Program for Basic Research of China(No.G2002CB311901) （No.60276021）
