论文从二极管传统的建模方法入手，建立了它的小信号模型，用优化的方法提取了小信号模型参数。

We started with the traditional modeling methods for Schottky diode and the small-signal model had been extracted by using optimization method.

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你可以为D1使用几乎任何一个小信号的二极管。

You can use almost any small-signal diode for D1.

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