Based on the equivalentcircuit model of a two-port optical receiver front-end, the relationship between the equivalentinput 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。
2
Combination of ladder approach method and equivalentcircuit 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。
3
The device parameter as well as resonance frequency, mechanical quality factor and work band width were determined by the equivalentcircuitinput impedance admittance circle diagram.