| 一个1.5V低相位噪声的高频率LC压控振荡器的设计 |
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| 引用本文： | 邬蓉,衣晓峰,唐长文,苏彦锋,洪志良.一个1.5V低相位噪声的高频率LC压控振荡器的设计[J].复旦学报(自然科学版),2005,44(1):166-172. |
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| 作者姓名： | 邬蓉 衣晓峰 唐长文 苏彦锋 洪志良 |
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| 作者单位： | 复旦大学,专用集成电路和系统国家重点实验室,上海,200433;复旦大学,专用集成电路和系统国家重点实验室,上海,200433;复旦大学,专用集成电路和系统国家重点实验室,上海,200433;复旦大学,专用集成电路和系统国家重点实验室,上海,200433;复旦大学,专用集成电路和系统国家重点实验室,上海,200433 |
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| 基金项目： | 复旦大学校科研和教改项目 |
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| 摘 要： | 介绍了一种适用于DCC-1800系统的压控振荡器的设计，中心频率为3．6GHz．分析并比较了三种降低相位噪声的方法并进行了仿真验证，然后阐述了3．6GHz压控振荡器器件尺寸的优化分析．采用电感电容滤波技术降低相位噪声，在偏离中心频率600kHz处，仿真得到相位噪声为-117dBc／Hz，调谐范围达到26．7％．VCO电路在1．5V电压下工作，静态电流为6mA．
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| 关 键 词： | 半导体技术 压控振荡器 相位噪声 电感电容滤波技术 |
| 文章编号： | 0427-7104(2005)01-0166-07 |
Design of 1.5 V LC Voltage-Controlled High Frequency Oscillator of Low Phase Noise |
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| WU Rong,YI Xiao-feng,TANG Zhang-wen,SU Yan-feng,HONG Zhi-liang.Design of 1.5 V LC Voltage-Controlled High Frequency Oscillator of Low Phase Noise[J].Journal of Fudan University(Natural Science),2005,44(1):166-172. |
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| Authors: | WU Rong YI Xiao-feng TANG Zhang-wen SU Yan-feng HONG Zhi-liang |
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| Abstract: | It is described the design of a voltage-controlled oscillator for the DCS-1800 system. The center frequency of the oscillator is 3.6 GHz. The analysis and comparison of three methods to reduce phase noise are presented theoretically, and the simulation results are shown. Then the optimization analysis of the parameters of the device is presented. LC filtering technology is used to reduce the phase noise. The phase noise at 600 kHz away from the center frequency is -117 dBc/Hz, the tuning range is up to 26.7%. The static current is 6 mA at 1.5 V. |
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| Keywords: | semiconductor technology voltage controlled oscillator (VCO) phase noise LC noise filtering technology |
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