| 混频三极管噪声系数的新算法 |
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| 引用本文： | 刘传菊.混频三极管噪声系数的新算法[J].哈尔滨商业大学学报(自然科学版),1992(2). |
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| 作者姓名： | 刘传菊 |
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| 作者单位： | 齐齐哈尔轻工学院机电系 |
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| 摘 要： | 根据混频三极管特殊的工作状态,即输出中频选频网络对输入载频及其附近的信号相当于短路,计算分析了输入回路的噪声源对输出的影响。依据管子内部反馈作用可以不考虑的特点,提出了混频器噪声系数的新算法。
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| 关 键 词： | 混频 噪声 本振 载频 |
A New Kind of Algorithm of Noise Coefficient of a Mixer Transistor |
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| Liu Chuanju.A New Kind of Algorithm of Noise Coefficient of a Mixer Transistor[J].Journal of Harbin University of Commerce :Natural Sciences Edition,1992(2). |
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| Authors: | Liu Chuanju |
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| Institution: | Qiqihar Institute of Light Industry |
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| Abstract: | Due to the proper operating point of a mixer transistor,namely the intermediat-frequency output selecting circuit may be seen as a short circuit over input carrier-frequency with its adjacents,in this paper the influence of input noise source to the output are calculated and analyzed. By the rule of ignorable feed-back within a mixer transistor,a new kind of algorithm of a mixer noise coefficient is suggested. |
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| Keywords: | mixing noise local generator carrier-frequency |
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