How to improve the electromagnetic wave absorption efficiency of soft magnetic absorbing materials in the low frequency range

Soft magnetic absorbing materials play an important role in the electromagnetic compatibility (EMC) design of electronic devices due to their excellent magnetic permeability and electromagnetic wave absorption performance. However, with the development of electronic devices towards high frequency and miniaturization, the problem of electromagnetic interference in the low frequency range has become increasingly prominent. Improving the electromagnetic wave absorption efficiency of soft magnetic absorbing materials in the low frequency range has become an urgent technical challenge to be solved. This article will explore strategies to improve the low-frequency absorption performance of soft magnetic absorbing materials from the aspects of material composition, structural design, and processing technology, and specifically introduce Advanced Institute (Shenzhen) Technology Co., LtdResearch Platinum Brand Soft Magnetic Absorbing MaterialsInnovative achievements in this field.

1、 Optimize material composition

1. Choose appropriate soft magnetic materials

The magnetic permeability of soft magnetic materials is one of the key factors affecting their absorption performance. High permeability soft magnetic materials can more effectively guide and absorb low-frequency electromagnetic waves. Advanced Institute (Shenzhen) Technology Co., Ltd. uses high-performance soft magnetic alloy powders, such as Sendust alloy and Mu metal alloy, to develop platinum brand soft magnetic absorbing materials. These alloys have high magnetic permeability, low coercivity, and good frequency characteristics, which can significantly improve the electromagnetic wave absorption efficiency of materials in the low frequency range.

2. Add conductive fillers

Adding conductive fillers such as carbon black, metal powder, etc. to soft magnetic materials can increase the conductivity of the material, thereby improving the electromagnetic wave absorption performance in the low-frequency range. The addition of conductive fillers will form a conductive network, increase the propagation path of electromagnetic waves inside the material, and promote energy loss of electromagnetic waves.Advanced Institute (Shenzhen) Technology Co., LtdBy precisely controlling the type and amount of conductive fillers, the conductivity of the Yanbo brand soft magnetic absorbing material was optimized, resulting in a significant improvement in its absorption efficiency in the low-frequency range.

2、 Improve structural design

1. Multi layer composite structure

By adopting a multi-layer composite structure design, materials with different properties can be combined together to achieve multiple absorption and reflection of low-frequency electromagnetic waves. For example, in the research of platinum brand soft magnetic absorbing materials, Advanced Institute (Shenzhen) Technology Co., Ltd. alternately stacks high permeability soft magnetic layers with high dielectric constant dielectric layers to form a multi-layer composite structure. When electromagnetic waves are incident on this structure, they will reflect and refract multiple times between different layers, increasing the propagation path and loss of electromagnetic waves inside the material, thereby improving the absorption efficiency in the low-frequency range.

2. Micro nano structure design

Introducing micro nano structures such as micropores and nanoparticles can effectively regulate the electromagnetic parameters of materials and enhance their low-frequency electromagnetic wave absorption performance. Micro nano structures can increase the specific surface area and number of interfaces of materials, promoting the scattering and loss of electromagnetic waves inside the materials. Advanced Institute (Shenzhen) Technology Co., Ltd. utilizes advanced micro nano processing technology toResearch Platinum Brand Soft Magnetic Absorbing MaterialsA unique micro nano structure has been constructed in China, which significantly improves its absorption performance in the low frequency range.

3、 Optimize processing technology

1. Heat treatment process

Heat treatment is an important means to improve the performance of soft magnetic materials. By controlling the heat treatment temperature, time, and atmosphere, the magnetic permeability, grain structure, and stress state of the material can be optimized, thereby improving the electromagnetic wave absorption efficiency in the low-frequency range. Advanced Institute (Shenzhen) Technology Co., Ltd. has conducted in-depth research on the heat treatment process of research platinum brand soft magnetic absorbing materials. It adopts a segmented heat treatment process, first annealing at low temperature to eliminate stress and impurities inside the material, and then crystallization treatment at high temperature to improve the magnetic permeability and crystallinity of the material, so as to achieve the best absorption performance in the low frequency range.

2. Compression molding process

Compression molding processSoft magnetic absorbing materialThe density and uniformity have a significant impact. By using high-precision compression molding equipment, uniform compaction of materials can be achieved, improving their density and consistency, thereby enhancing their electromagnetic wave absorption performance in the low-frequency range. Advanced Institute (Shenzhen) Technology Co., Ltd. strictly controls the pressure, speed, and time of compression molding in the production process of platinum brand soft magnetic absorbing materials, ensuring that the density and uniformity of the materials reach the ideal state, and significantly improving the absorption efficiency of the materials in the low-frequency range.

4、 Innovative achievements of Advanced Institute (Shenzhen) Technology Co., Ltd. in researching platinum brand soft magnetic absorbing materials

Advanced Institute (Shenzhen) Technology Co., Ltd. has made significant breakthroughs in the absorption efficiency of low-frequency electromagnetic waves with its deep accumulation in materials science and electromagnetic compatibility, and has developed the R&D Platinum brand soft magnetic absorbing materials. This material adopts an optimized combination of high-performance soft magnetic alloy powder and conductive filler, combined with multi-layer composite structure and micro nano structure design, as well as precise control of heat treatment and compression molding processes, to achieve efficient absorption of low-frequency electromagnetic waves. The reflection loss of Yanbo brand soft magnetic absorbing materials in the low frequency range can reach over -20dB, effectively suppressing electromagnetic interference in the low frequency range and providing a reliable solution for electromagnetic compatibility design of electronic devices.

conclusion

improveSoft magnetic absorbing materialThe absorption efficiency of electromagnetic waves in the low frequency range is a complex and important issue. Through efforts in optimizing material composition, improving structural design, and optimizing processing technology, the low-frequency absorption performance of materials can be significantly improved. The successful research and development of platinum brand soft magnetic absorbing materials by Advanced Institute (Shenzhen) Technology Co., Ltd. has provided strong technical support and product guarantee for the development of this field. In the future, with the continuous advancement and innovation of technology, the electromagnetic wave absorption efficiency of soft magnetic absorbing materials in the low-frequency range will be further improved, bringing broader application prospects for the electromagnetic compatibility design of electronic devices.
The above data is for reference only, and specific performance may vary due to production processes and product specifications.