Revolutionary Thin Film Material Absorbs 99% of Electromagnetic Waves: Breakthrough for 5G and 6G Technology

A research team from the Korea Institute of Materials Science (KIMS) has created an innovative material that, in the form of a thin film just 0.5 mm thick, absorbs up to 99 percent. electromagnetic waves. This solution can greatly help in eliminating interference from waves. The improved material is a significant improvement over existing protective materials. So far, they have let in only about 10%. radiation.

The new material is characterized by the ability to absorb electromagnetic waves in a wide range of frequencies, including those used in technologies 5G6G and Wi-Fi networks. This feature is essential in an environment where there is no shortage of sources of this type of wave. Adequate shielding allows you to eliminate interference that could adversely affect the performance of other nearby equipment.

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Traditional electromagnetic shielding materials often show more than 90 percent. waves, which means that the actual absorption is very small and amounts to about 10%. In addition, materials with higher absorption usually only work in a narrow frequency range, thus losing their flexibility. According to PAP, the invention of scientists from KIMS does not have these limitations. Its great advantage is high efficiency while maintaining low thickness and adequate flexibility.

The material creation process involved changing the ferrite crystal structure, which was then combined with a thin polymer foil. Special conductive patterns are applied to its rear side, enabling the control of the propagation of electromagnetic waves. By changing the shape of the carrier pattern, it is possible to significantly reduce the reflection of electromagnetic waves at certain frequencies.

In addition, a thin carbon nanotube foil was placed behind the material. They have a high protective value. This process aims to further increase the effectiveness of the developed protective material.

The material developed by Koreans keeps its shape even after repeated bending and straightening. Scientists say it can be bent thousands of times. Therefore, it is well suited for applications in mobile devices, such as foldable smartphones or wearables.

– As the use of 5G / 6G communication expands, the importance of materials that absorb and protect electromagnetic waves increases. This material has great potential to improve the reliability of communication devices such as smartphones and autonomous vehicle radars, said Byeongjin Park, who heads the project.