This letter presents a parameter extraction methodology for implementing the Debye model to represent the complex permittivity of liquids at microwave frequencies. Thus, based on an electrical circuit analogy, the parameters associated with different model’s poles as well as with the low-frequency loss are straightforwardly determined through linear regressions. Excellent model–experiment agreement is achieved up to 15 GHz for four different liquid samples.

中文翻译：

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通过德拜模型电路等效性的系统参数提取对液体样品进行微波表征

这封信提出了一种参数提取方法，用于实施德拜模型来表示微波频率下液体的复介电常数。因此，基于电路类比，与不同模型的极点以及低频损耗相关的参数可以通过线性回归直接确定。对于四种不同的液体样品，在高达 15 GHz 的频率下实现了出色的模型-实验一致性。