1. Why do you want to test the product?

To reduce the interference of the electromagnetic pulse from the outside of the box to the internal equipment, and to provide the interference free testing environment for the wireless communication equipment.

2.Design shielding case, what materials can be used as shielding material?

The material with higher conductivity and magnetic conductivity can be used as shielding material.

From the point of view of electromagnetic shielding, it is necessary to consider the kind of electric wave shielding. The magnetic field wave electric field wave, plane wave or high frequency, usually metal can meet the requirements for low frequency magnetic wave, using high permeability material.

Shielding materials are commonly used in steel, aluminum, copper, copper foil, aluminum foil. With the strict requirements of the electromagnetic compatibility of civil products, more and more manufacturers adopt the method of nickel plating or copper on the plastic cabinet to realize the shielding.

3.Shielding effectiveness of the shielding box and shielding material?

In addition to the shielding material, but also by the two factors, one is the chassis on the discontinuity points, such as holes, cracks, etc. The other is through the shielding box of the wire, such as signal cables, power lines, etc..