How to use ultra-high magnetic permeability absorbing materials to improve the electromagnetic compatibility of communication equipment

With the development of new generation information technologies such as 5G and the Internet of Things, the operating frequency of communication equipment is getting higher and the signal bandwidth is constantly increasing, which makes the electromagnetic interference (EMI) problem between devices increasingly prominent. To ensure the stable operation of communication systems, improving their electromagnetic compatibility (EMC) has become crucial. In this context, using absorbing materials with excellent performance to absorb excess electromagnetic energy, reduce reflection and secondary radiation, has become one of the effective means to improve EMC. This article will explore how to apply ultra-high magnetic permeability absorbing materials, especially those produced by Advanced Institute (Shenzhen) Technology Co., LtdResearch Platinum brand ultra-high magnetic permeability absorbing materialTo enhance the electromagnetic compatibility of communication devices.

The mechanism of action of ultra-high magnetic permeability absorbing materials

1. Magnetic loss mechanism

Ultra high permeability absorbing materials mainly rely on the magnetic material inside to generate hysteresis loss, eddy current loss, and natural resonance effect under the action of alternating magnetic field to consume electromagnetic energy. When high-frequency electromagnetic waves pass through these materials, due to the presence of numerous tiny magnetic domain structures inside the materials, they will continuously flip under the influence of an external magnetic field, resulting in energy dissipation in the form of heat. In addition, appropriate material design can also promote multiple reflections and refractions of electromagnetic waves at their interfaces, further increasing the path length and improving absorption efficiency.

2. Impedance matching characteristics

In addition to efficient magnetic losses, good impedance matching is also an important factor in achieving efficient absorption. In an ideal situation, absorbing materials should have complex relative permittivity and permeability similar to that of free space, in order to minimize the energy reflection of incident waves. For communication devices, selecting absorbing materials with appropriate thickness and composition ratio can effectively optimize their surface impedance characteristics, reduce the standing wave ratio (VSWR) in the vicinity of the antenna, and thereby improve the overall transmission performance of the system.

Application case: Research Platinum brand ultra-high magnetic permeability absorbing material

Advanced Institute (Shenzhen) Technology Co., Ltd. has long been committed to the research and development of high-performance absorbing materials, and has launched the Research Platinum brand series of ultra-high magnetic permeability absorbing products. This series of products adopts unique formula design and technological processes, achieving extremely high magnetic permeability values while maintaining lightweight, suitable for EMI shielding requirements in various operating frequency bands. For example, in the design of a certain wireless router, engineers choseResearch Platinum Plate Absorption Wave PlateAs an internal protective layer, it successfully solves the problem of strong coupling interference caused by adjacent metal components, significantly improving data transmission speed and connection stability.

Specific measures to enhance the electromagnetic compatibility of communication equipment

1. Reasonable layout

Within communication equipment, direct contact or proximity between sensitive circuits and high current lines should be avoided as much as possible. We can consider adopting a partition isolation strategy, which utilizes absorbing materials to construct physical barriers, separating different functional modules and reducing electromagnetic interference between them. At the same time, for locations that may generate strong radiation sources, such as around antenna arrays, it is necessary to focus on strengthening local protection and using thicker or higher performance absorbing materials for coverage treatment.

2. Shell protection

The casing of communication equipment is the first line of defense against external EMI intrusion. For this, a thin and soft layer can be applied on the inside of the device casingResearch Platinum brand ultra-high magnetic permeability absorbing materialCreate a comprehensive electromagnetic shielding effect. This approach not only helps to weaken the impact of external noise on internal circuits, but also prevents the leakage of signals emitted by itself, protecting user privacy and security.

3. Strengthening of key areas

For certain critical areas that are particularly susceptible to electromagnetic interference, such as power input ports, signal interfaces, etc., customized high-strength absorbing materials can be used for specialized treatment. For example, the special shapes and sizes of products provided by the Research Platinum brand can be flexibly adjusted in installation positions according to actual needs to ensure optimal EMC performance. In addition, for clock signal lines and other high-speed traces on high-speed digital circuit boards, some miniaturized absorbing elements such as magnetic beads, ferrite clips, etc. can be added appropriately to suppress common mode noise propagation.

In summary, utilizingUltra high permeability absorbing materialIt can effectively improve the electromagnetic compatibility of communication equipment and ensure its normal operation is not affected by external electromagnetic environment. In the future, with the advancement of technology, we believe that more innovative solutions will emerge, driving the entire industry towards a more intelligent and integrated direction. Advanced Institute (Shenzhen) Technology Co., Ltd. will continue to increase its research and development investment, bringing more high-quality R&D platinum brand absorbing materials to the market and helping China's communication industry achieve high-quality development.
The above data is for reference only, and specific performance may vary due to production processes and product specifications.