Hi， everyone, I have a question about the capacitor modeling.
We all know there will be time-varying electrical coupling between the two plates, in the form of displacement current. Since there is the time-varying electrical coupling, it will cause the time-varying magnetic field, which means part of the energy is stored in magnetic field. And the electrical coupling can be represented by a capacitor for simplicity. So, my question is that can I use a inductor to represent the induced magnetic field?
Usually, the definition of the inductor is derived on the basis of the conducting current not the displacement current, but according to the maxwell function, the time-varying displacement currents also contribute to the induced magnetic field. This puzzled me a lot

Anyone how knows the answer, please help me!

Thank you for your advice. But it seems that the wiki just provide the conception. And I think it's ok to use a inductor in the model to describe the capacitor's high frequency behavior especially over the resonate frequency. While I'm not sure about this idea, could you give me some more details, thank you agian!boe wrote on Mar 9^th, 2015, 2:04am:

Thank you for your reply. And If the plate is not big enough and even smaller to the space, and there still exits enough electrical coupling, can I use the inductance to represent the induced magnetic field?

For example, there are two co-planar lines, one is the signal line, and another one is the ground line, there still exist electrical coupling, as shown in the following figure.
boe wrote on Mar 9^th, 2015, 9:42am:

Geoffrey_Coram wrote on Mar 27^th, 2015, 5:04am:


Thank you for your explanation. And I think I have understand the problem.  :)