The application prospects of soft magnetic absorbing materials in communication base stations, antennas and other equipment

With the rapid development of modern communication technology, especially the popularization of 5G and future 6G technologies, the performance requirements of communication base stations and antennas are increasingly high. Electromagnetic radiation and electromagnetic interference (EMI) have become one of the key factors limiting equipment performance. Soft magnetic absorbing materials, as a new type of material that can effectively absorb electromagnetic waves and convert them into thermal energy, have broad application prospects in communication base stations, antennas, and other equipment. This article will explore the current application status of soft magnetic absorbing materials, with a particular focus on the research and development of Advanced Institute (Shenzhen) Technology Co., LtdResearch Platinum Brand Soft Magnetic Absorbing MaterialsThe application prospects and potential challenges in this field.

Characteristics of Soft Magnetic Absorbing Materials

（1） Electromagnetic characteristics

1. High permeability research platinum brand soft magnetic absorbing materials have high magnetic permeability. In communication base stations and antenna equipment, high magnetic permeability can effectively guide the magnetic field, change the distribution path of the magnetic field, thereby reducing magnetic field leakage and unnecessary magnetic field coupling. For example, around strong magnetic components such as power amplifiers in base stations, soft magnetic absorbing materials can limit the magnetic field within a certain range, avoiding interference with other sensitive components.
2. The soft magnetic absorbing material exhibits excellent absorption capability in specific frequency bands. In communication frequency bands, such as 5G frequency bands (n77, n78, n79, etc.) and traditional 2G/3G/4G frequency bands, it can absorb stray electromagnetic waves. This helps to reduce the interference caused by electromagnetic wave reflection and scattering between different components inside communication equipment, and improve the overall electromagnetic compatibility of the equipment.

（2） Physical characteristics

1. flexibilityResearch Platinum Brand Soft Magnetic Absorbing MaterialsIt has a certain degree of flexibility, which allows it to adapt to communication base stations and antenna equipment of different shapes and structures. In the complex internal structure of base stations or in the curved design of antennas, soft magnetic absorbing materials can be easily installed and attached without affecting their absorption and magnetic isolation effects due to shape limitations.
2. The soft magnetic absorbing material can maintain stable electromagnetic properties under different environmental conditions, such as temperature changes, humidity changes, etc. In harsh outdoor environments that communication base stations may face, or under the influence of heat generated by long-term antenna operation, their stability ensures the sustained effectiveness of absorption and magnetic isolation functions.

Application prospects in communication base stations

（1） Improve device integration

1. Component layout optimization: Communication base stations contain numerous electronic components, such as transceivers, filters, power amplifiers, etc. due toSoft magnetic absorbing materialIt can effectively reduce electromagnetic interference, and the safe distance between components can be appropriately reduced. This means that within the limited space of the base station cabinet, more components can be accommodated, improving equipment integration and reducing the footprint and cost of base station construction.
2. In the multi-layer circuit board design of base stations, soft magnetic absorbing materials can be used as interlayer isolation materials. It can absorb electromagnetic crosstalk between layers, making the wiring of the circuit board more compact and signal transmission more stable. This helps improve the performance of circuit boards and also provides the possibility for miniaturization of base station equipment.

（2） Enhance electromagnetic compatibility

1. Reducing internal interference: Different components within the base station generate electromagnetic radiation of various frequencies during operation, which may interfere with each other and affect the normal operation of the equipment. Research Platinum brand soft magnetic absorbing materials can selectively absorb these stray electromagnetic waves and reduce the intensity of internal interference. For example, between power amplifiers and low-noise amplifiers, soft magnetic absorbing materials can reduce the interference of high-power signals from power amplifiers on low-noise amplifiers and improve the signal processing capability of base stations.
2. Preventing external interference: In addition to internal interference, communication base stations may also be affected by external electromagnetic environments, such as signal interference from nearby base stations, electromagnetic radiation from industrial equipment, etc. Soft magnetic absorbing materials can be used as part of the base station casing or internal protective layer to absorb and isolate external interference electromagnetic waves, ensuring stable operation of the base station in complex electromagnetic environments.

（3） Energy saving and heat dissipation

1. Reducing electromagnetic losses in communication base stations can lead to energy waste. Soft magnetic absorbing materials can reduce energy loss caused by electromagnetic coupling and reflection by minimizing electromagnetic interference. This helps to improve the energy utilization efficiency of base stations, which is in line with the development trend of energy conservation in modern communication equipment.
2. Although heat dissipation assistanceSoft magnetic absorbing materialIt is not a heat dissipation material itself, but due to its ability to reduce electromagnetic interference, it indirectly improves the working environment of internal components in the base station. When components operate in a stable electromagnetic environment, their heat generation may be improved to a certain extent, thereby reducing the burden on the heat dissipation system and improving heat dissipation efficiency.

Application prospects in antennas

（1） Improve antenna performance

1. Increasing the gain of an antenna is an important indicator for measuring its radiation capability.Research Platinum Brand Soft Magnetic Absorbing MaterialsIt can be applied to the feeding network, radiating elements, and other parts of the antenna. By reducing electromagnetic interference from the surrounding environment, antennas can more effectively concentrate energy in specific directions for radiation, thereby increasing the gain of the antenna. In 5G communication, high gain antennas are crucial for achieving long-distance and high-speed signal transmission.
2. The directional pattern optimization of an antenna represents its radiation characteristics in different directions. Soft magnetic absorbing materials can adjust the electromagnetic environment around the antenna, making the directional pattern of the antenna more regular and stable. This helps to improve the coverage and signal quality of the antenna, reduce signal radiation in unexpected directions, and enhance spectrum utilization.

（2） Application in Multi antenna Systems

1. In multi antenna systems, such as MIMO (Multiple Input Multiple Output) antenna systems, sufficient isolation needs to be maintained between antennas to avoid signal crosstalk. Soft magnetic absorbing materials can be used as isolation materials between antennas, absorbing the mutual coupling electromagnetic waves between antennas and improving the isolation between antennas. This is of great significance for improving the channel capacity and data transmission rate of MIMO systems.
2. Small scale design of multi antenna systems often requires a significant amount of space. The application of soft magnetic absorbing materials can reduce the safe distance that needs to be maintained between antennas due to electromagnetic interference, thereby facilitating the miniaturization design of multi antenna systems. This has significant advantages for deploying more antennas in limited spaces, such as at the top of base station towers or inside mobile terminals.

conclusion

Advanced Institute (Shenzhen) Technology Co., LtdThe research platinum brand soft magnetic absorbing materials have broad application prospects in communication base stations, antennas and other equipment. Soft magnetic absorbing materials can play an important role in improving device integration, enhancing electromagnetic compatibility, and improving antenna performance. With the continuous development of communication technology, the requirements for the performance of communication equipment will become increasingly high. Soft magnetic absorbing materials are expected to become one of the key materials to solve electromagnetic related problems in communication equipment, promoting the development of the communication industry towards higher performance and efficiency.