InventionsScience

Koreans Created Membrane That Protects From 99% Of 5G, 6G And Wi-Fi Radiation

A team of scientists from the Composites and Convergent Materials Research Department at the Korea Institute of Materials Science (KIMS) has developed a film that absorbs more than almost all electromagnetic waves in three frequency ranges.

Today, the air is saturated with electromagnetic waves in many ranges. Therefore, shielding in radio electronics is the norm. Another thing is that conventional metal screens reflect the radio signal, which does not improve the condition of the air, and special absorbing shielding usually works in a narrow frequency range. Scientists from the Korea Institute of Materials Science (KIMS) have created a shielding material, which, according to them, is “the world’s first ultra-thin film composite material capable of absorbing more than 99% of electromagnetic waves.” Absorb, not reflect. About 1% of the energy falling on the material is spent on reflection. At the same time, the material is lightweight, flexible and durable, which will be especially in demand by manufacturers of folding smartphones. With all other advantages, the thickness of the material is less than 0.5 mm.

“The team synthesized the magnetic material by changing the crystal structure of ferrite, which allowed it to selectively absorb the desired frequencies,” the press release notes. The ferrite is applied to a thin polymer film with a pre-created conductive pattern. Finally, a film of carbon nanotubes is added to the material.

According to Penjin Park, a senior researcher at KIMS, the new material could significantly improve the reliability of wireless communication devices such as smartphones and autonomous vehicle radars. The researchers have already completed a domestic patent application and have also applied for patents in the United States, China and other countries.

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