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A matrix formulation for noise transduction as a general case of noise measure

机译:作为噪声测量的一般情况的用于噪声转换的矩阵公式

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摘要

Conventional noise characteristics of an active device or circuit are given by the minimum noise figure, the optimum source reflection coefficient, and a noise resistance. The noise measure proposed extends the noise figure to include the available gain of the network, for the case of a conjugate output match, and gives values that minimize the noise power available from the network consistent with maximum available gain. Noise transduction follows as a general case of the noise measure by using the transducer gain with any output load. A new noise equation is derived that is solved for the minimum transduced noise, the optimum source impedance, and the optimum load impedance. These equations minimize the noise power delivered to the load impedance consistent with a maximum in the transducer gain.
机译:有源器件或电路的常规噪声特性由最小噪声系数,最佳源反射系数和抗噪声性给出。对于共轭输出匹配,建议的噪声测量将噪声系数扩展到包括网络的可用增益,并给出与最大可用增益一致的最小化可从网络获得的噪声功率的值。通常,通过在任何输出负载下使用换能器增益来进行噪声测量。导出了一个新的噪声方程,可以求解最小的换能噪声,最佳的源阻抗和最佳的负载阻抗。这些方程式将传递给负载阻抗的噪声功率减至最小,这与传感器增益的最大值一致。

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