| 一种微型超低频低噪声放大器电路的设计及噪声分析 |
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| 引用本文： | 王瑛剑,董俊宏,王永斌,潘圣. 一种微型超低频低噪声放大器电路的设计及噪声分析[J]. 长江大学学报, 2004, 1(4): i002-i003 |
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| 作者姓名： | 王瑛剑 董俊宏 王永斌 潘圣 |
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| 作者单位： | 海军工程大学通信工程系,湖北,武汉,430033;海军工程大学通信工程系,湖北,武汉,430033;海军工程大学通信工程系,湖北,武汉,430033;海军工程大学通信工程系,湖北,武汉,430033 |
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| 摘 要： | 设计了一种微型超低频低噪声放大器,给出了该放大器的电路分析,对该放大器的基极偏置噪声、发射极偏置噪声、集电极偏置噪声及电容噪声进行了分析.经测试,该放大器在室温下在30～100kHz范围内的噪声系数小于5dB.
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| 关 键 词： | 超低频 低噪声 放大器 |
| 文章编号： | 1673-1409(2004)04-0045-03 |
Design and Analysis on A Microscopic and Extra-low Frequency Low Noise Amplifier Circuit |
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| WANG Ying-jian,DONG Jun-hong,WANG Yong-bin,PAN Sheng. Design and Analysis on A Microscopic and Extra-low Frequency Low Noise Amplifier Circuit[J]. Journal of Yangtze University, 2004, 1(4): i002-i003 |
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| Authors: | WANG Ying-jian DONG Jun-hong WANG Yong-bin PAN Sheng |
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| Affiliation: | Naval University of Engineering Wuhan 430033 |
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| Abstract: | A microscopic and low frequency low noise amplifier is designed, the analysis on the amplifier is introduced. The base bias noise, emitter bias noise, collecting bias noise and capacitance noise of the amplifier are analyzed. Test indicates that the noise factor of the amplifier is less than 5 dB under 30-100kHz ambient temperature. |
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| Keywords: | extra-low frequency low noise amplifier |
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