Synergistic absorption performance of thin film absorbing materials in multilayer structures

With the rapid development of modern electronic technology, the problem of electromagnetic radiation has become increasingly prominent. Thin film absorbing materials have been widely used in civilian electromagnetic protection and military stealth technology due to their high efficiency, thinness, and ease of processing. This article will explore the synergistic absorption performance of thin film absorbing materials in multilayer structures, and introduce the advanced research institute (Shenzhen) Technology Co., LtdResearch Platinum Brand Thin Film Absorbing MaterialsAs an example, demonstrate its performance advantages through specific data.

Definition and Characteristics of Thin Film Absorbing Materials

Thin film absorbing materials refer to the combination of absorbing materials and thin film technology, which achieves efficient absorption of electromagnetic waves by finely controlling the microstructure of the material. These materials usually have the characteristics of wide absorption frequency band, strong absorption ability, light weight, and thin thickness, which can efficiently absorb and convert electromagnetic waves in a wide frequency range, reducing the reflection and scattering of electromagnetic waves.

The advantages of multi-layer structured absorbing materials

Multilayer structured absorbing materialThe main approach is to composite multiple single-layer structures with single absorption characteristics together, fully utilizing the absorption properties of magnetic loss dielectric materials and electrical loss materials, thereby improving the absorption rate and bandwidth of the material system. The design of multi-layer structure not only improves the absorption performance, but also makes the preparation process more flexible and controllable.

Research Platinum Brand Thin Film Absorbing Materials

Advanced Institute (Shenzhen) Technology Co., LtdWe are a high-tech enterprise specializing in the research and production of thermal conductive materials, shielding materials, conductive silver paste, and other related products. The platinum brand thin-film absorbing materials developed by it have been widely used in precision electronics, military protection and other fields due to their efficient absorption, ultra-thin and lightweight characteristics.

data display

• Absorption performance:Research Platinum Brand Thin Film Absorbing MaterialsThe maximum absorption can reach -18.24dB in the range of 2~18GHz, and the bandwidth greater than -8dB ranges from 5.75GHz to 18GHz.
• Structural features: By designing different three-dimensional geometric structures (such as conical structures and jungle structures), the number of reflections of electromagnetic waves in the absorber is increased, and each reflection leads to absorption and attenuation of electromagnetic waves, thereby improving the absorption performance of the film.
• Application areas: Widely used in electromagnetic shielding of electronic devices such as mobile phones and computers, as well as stealth technology for military equipment and facilities.

Synergistic absorption performance in multi-layer structures

The design of multi-layer structures not only needs to consider the absorption performance of single-layer materials, but also needs to comprehensively consider the reflection superposition, scattering, and interference effects between different layers. By using the principle of impedance matching, losses with different absorption effects can be stacked to produce multi-layer absorbing films with good absorption performance.

Three layer structural design

The three-layer structures currently being studied can be divided into two categories:

1. Matching layer, absorption loss layer, reflection layer: The matching layer matches the impedance of the material itself with the impedance of free space, allowing electromagnetic waves incident on the surface to enter the interior of the material as much as possible; The absorption loss layer is responsible for absorbing electromagnetic wave energy; The reflective layer further reduces the reflection of electromagnetic waves.
2. Matching layer, transition layer, strong loss layer: The transition layer is used to smooth the impedance difference between different layers, while the strong loss layer provides efficient electromagnetic wave absorption capability.

data comparison

• Single layer structure: Limited absorption performance and narrow bandwidth.
• Double layer structure: Compared with single-layer structure, the absorption performance and bandwidth have been improved, but there is still an impedance mismatch problem.
• Three layer structure: significantly improved absorption performance, wider bandwidth, and relatively simple process. For example, the reflection loss value of the research platinum brand multi-layer absorbing film reached -54.1 dB at 14.08 GHz, and the effective absorption bandwidth reached 6.3 GHz (11.7-18 GHz).

conclusion

Thin film absorbing materialThe synergistic absorption performance in multi-layer structures is the key to improving the overall performance of materials. By designing a reasonable multi-layer structure, the synergistic effect between different layers can be fully utilized to improve the absorption rate and bandwidth of the material. The research platinum brand thin-film absorbing materials of Advanced Institute (Shenzhen) Technology Co., Ltd. provide strong support for the development of multi-layer structural absorbing materials with their excellent performance and wide application fields. In the future, with the development of new structural designs, new absorbers, and multifunctionality, the synergistic absorption performance of thin film absorbing materials in multi-layer structures will be further improved, making greater contributions to the development of electromagnetic protection and stealth technology.
The above data is for reference only, and specific performance may vary due to production processes and product specifications.