What is an electromagnetic shield?
2022-04-28
With the advancement of technology, mobile phones have become an indispensable part of people's daily lives. While the rapid development of wireless communication technology brings convenience, it also poses certain health risks. In some electronic products, radiation and electromagnetic interference (EMI) caused by high-frequency and radio frequency have become a focal point of concern for both users and manufacturers of electronic devices. Shielding Cover Magnetic materials have become an essential component in electronic devices, especially in the 5G communication field.
A magnetic shielding cover consists of support legs and a shielding body. The support legs are movably connected to the cover, which is spherical. The function of the shielding cover is to prevent signals inside the shielding body from radiating outwards, shield external radiation, and ensure that the circuits inside the shielding body are not affected. Currently, shielding covers are mainly used in mobile phones, GPS, and other fields. On the one hand, they block electromagnetic radiation, such as that which can harm the human body; on the other hand, they prevent electromagnetic interference (EMI), providing shielding for PCB components and LCMs.
With the rapid development of the 5G industry, electromagnetic interference between high-frequency components and equipment is becoming increasingly severe, and the requirements for shielding covers are also becoming increasingly stringent. In particular, the development of 5G smartphones has led to improvements in transmission rate, frequency, and signal strength, and millimeter-wave propagation places even higher demands on electromagnetic interference and shielding. The technical level of magnetic shielding covers is mainly determined by their manufacturing materials; the conductivity, magnetic permeability, and overall performance of the materials are key factors in shielding effectiveness. With industrial upgrades, magnetic shielding cover technology will develop towards higher shielding efficiency, wider shielding frequency, and more comprehensive performance.
Shielding Cover It can be widely used in 5G equipment, antenna base stations, communication equipment, unmanned intelligent circuits, and other industries.
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