| 射频卫星电视天线电路中LC压控振荡器设计 |
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| 引用本文： | 王魏,黎希,宫召英,马晓英.射频卫星电视天线电路中LC压控振荡器设计[J].电视技术,2012,36(21). |
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| 作者姓名： | 王魏 黎希 宫召英 马晓英 |
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| 作者单位： | 重庆邮电大学,重庆邮电大学,重庆邮电大学,重庆邮电大学 |
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| 摘 要： | 本文设计了一款应用于卫星电视天线电路中低功耗、低相噪的宽带单片集成压控振荡器。该振荡器利用PMOS尾电流源和MIM电容阵列结构。在保证调谐范围的前提下，有效的降低了相位噪声。使得该压控振荡器实现了3.384GHz~4.022GHz频段的覆盖，在中心频率为3.7GHz时，100Hz和1MHz频偏处的相位噪声分别为-90.4dBc/Hz和-119.1dBc/Hz，工作电压下为1.8V，功耗仅为2.5mW。
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| 关 键 词： | 天线电路，LC压控振荡器 宽带 相位噪声 |
| 收稿时间： | 4/25/2012 5:13:14 PM |
| 修稿时间： | 5/11/2012 7:00:21 PM |
LC VCO design in the RF satellite TV antenna circuit |
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| wangwei,lixi,gongzhaoying and maxiaoying.LC VCO design in the RF satellite TV antenna circuit[J].Tv Engineering,2012,36(21). |
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| Authors: | wangwei lixi gongzhaoying and maxiaoying |
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| Affiliation: | Chongqing University of Posts and Telecommunications,Chongqing University of Posts and Telecommunications,Chongqing University of Posts and Telecommunications,Chongqing University of Posts and Telecommunications |
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| Abstract: | A monolithic integrated voltage controlled oscillator (VCO) with low power, low phase noise and wide tuning range used in the satellite TV antenna RF circuit is designed. The PMOS tail current source and a MIM capacitor array structure was used so as to effectively reduce the phase noise, and ensure the enough tuning range. The proposed VCO achieved a tuning rang of 3.364~4.022GHz, and the central frequency is 3.7GHz, the phase noise is -90.4dBc/Hz at 100Hz and -119.1dBc/Hz at 1MHz offset while dissipating 2.5mW from 1.8V supply. |
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| Keywords: | antenna circuit LC VCO wideband phase noise |
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