Based on the equivalent circuit model of a two-port optical receiver front-end, the relationship between the equivalent input noise current spectral density and the noise figure is analyzed.
根据光接收机前端等效电路模型，建立了噪声系数与等效输入噪声电流谱密度的关系。
Combination of ladder approach method and equivalent circuit model of slot antenna had been used to analyze its input impedance. Finally, GTD had been used to calculate the radiation pattern.
利用阶梯近似方法结合缝隙天线电路模型分析其输入阻抗，最后采用GTD方法计算该种天线的辐射方向图。
The device parameter as well as resonance frequency, mechanical quality factor and work band width were determined by the equivalent circuit input impedance admittance circle diagram.
分析压电式超声波换能器的等效电路，并由等效电路输入阻抗的导纳圆图确定了换能器的元器件参数以及谐振频率、机械品质因数和工作带宽等特征参量。
According to the rules of ideal source transformation, we are able to transfer the equivalent error sources to the input branch of the amplifier's equivalent circuit.
运用理想电源转移规则，可以把这些误差源转移到放大器等值电路的输入支路。
According to the rules of ideal source transformation, we are able to transfer the equivalent error sources to the input branch of the amplifier's equivalent circuit.
运用理想电源转移规则，可以把这些误差源转移到放大器等值电路的输入支路。
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