频率属性：

    Frequency

    Relative Permittivity

    Loss Tangent

    High-Frequency Corner – the value of the High-frequency Corner should be at least 10 times higher than the Frequency.

即是WB，至少为频率的10倍，一般不作变动。

Use the fields to enter Properties at DC values:

    Relative Permittivity – select the check box if you wish to specify relative permittivity.

Conductivity

结果如下：