高手指教！

Finite Conductivity –A Finite Conductivity boundary enables you to define the surface of an object as a lossy (imperfect) conductor. It is an imperfect E boundary condition, and is analogous to the lossy metal material definition. It is only valid for
good conductors.
既然说模拟lossy conductor ,那还为什么说only valid for good conductors?
还有两种边界条件：Finite Conductivity和Impedance有什么不同?

a lossy (imperfect) conductor的话，boundary condition就不能是iperfect E，所以你不能使用默认的边界条件，必须重新定义。有损耗就应该使用Finite Conductivity。

谢谢！1楼