A 6-GHz Low-Phase-Noise Voltage-Controlled Oscillator
A 6-GHz low-phase-noise voltage-controlled oscillator (VCO) is proposed. A varactor based coarse tuning method which differs from the traditional switchcapacitor based architecture is adopted. The source feedback resistors and a modified filtering technique are used to suppress low and high frequency noises of current source, respectively. To verify the concept, a prototype VCO is fabricated in 0.13μm CMOS technology. The measurement results show that the VCO has a phase noise of -119dBc/Hz at 1MHz offset and a tuning range of 6.1GHz to 6.7GHz. The VCO core draws only 4.7mA current from 1.2V supply voltage.
Yaohua Pan Hu Chen Ke Shao Yumei Huang Zhiliang Hong
State Key Laboratory of ASIC and System, Fudan University, Shanghai 201203, China
国际会议
上海
英文
230-232
2010-11-01(万方平台首次上网日期,不代表论文的发表时间)