In this paper, a sensitivity analysis and uncertainty estimation of small-signal model for InP HBT is presented. Analytical expressions for sensitivity are derived in terms of the measured S-parameters based on the direct intrinsic parameters extraction. Furthermore, the uncertainties of the intrinsic parameters vs frequency are discussed to give more reliable extraction results. The optimal solutions of the parameters are obtained by utilizing sensitivity analysis. In the frequency range of 45 MHz-40GHz, good fits between the measured and modeled S-parameters are achieved for 5 × 5μm² InP HBT.

中文翻译：

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InP HBT小信号建模中的灵敏度分析和不确定性估计（特邀论文）

本文提出了InP HBT小信号模型的敏感性分析和不确定性估计。灵敏度的分析表达式是根据基于直接固有参数提取的测量 S 参数导出的。此外，讨论了固有参数与频率的不确定性，以提供更可靠的提取结果。利用灵敏度分析得到参数的最优解。在 45 MHz-40GHz 的频率范围内，5 × 5μm ² InP HBT实现了测量和建模 S 参数之间的良好拟合。