What is the principle of electromagnetic shielding?

[LaKiara]

Here is the principle of electromagnetic shielding: 1. Electromagnetic shielding is the use of conductive materials to reduce the penetration of alternating electromagnetic fields into a specified area. 2. It utilizes the reflection, absorption, and guidance of electromagnetic energy flow by the shielding body, which is closely related to the induced charges, currents, and polarization phenomena on the surface and inside the shielding structure. The two factors affecting the shielding body are as follows: 1. The entire surface of the shielding body must be electrically continuous. 2. There should be no conductors that directly penetrate the shielding body. Additional information: The method to solve electromagnetic wave leakage is to fill the gaps with conductive elastic materials to eliminate non-conductive points. This is similar to filling rubber in the gaps of a fluid container. Such elastic conductive filling material is called an electromagnetic sealing gasket.