The specific application of magnetic absorbing materials in smartphones and tablets

Brief introduction

With the continuous enhancement of the functions of smartphones and tablets, the issue of electromagnetic compatibility (EMC) between internal electronic components is receiving increasing attention. Magnetic barrier absorbing materials play an important role in solving electromagnetic interference (EMI) and improving signal transmission quality in these devices. This article will focus on exploring the advanced technology of Advanced Institute (Shenzhen) Technology Co., LtdResearch Platinum Brand Magnetic Barrier Absorbing MaterialSpecific applications in smartphones and tablets.

2、 Overview of Magnetic Barrier Absorbing Materials

（1） The principle of absorbing materials with magnetic separatorsMagnetic barrier absorbing materialMainly through the absorption, reflection, or scattering of electromagnetic waves, unnecessary electromagnetic radiation is reduced. The research platinum brand magnetic barrier absorbing material has special electromagnetic properties, and its internal structure can effectively interact with electromagnetic waves of specific frequencies. For example, it can convert incoming electromagnetic wave energy into other forms of energy such as thermal energy, thereby reducing the intensity of electromagnetic interference.

（2） Characteristics of Research Platinum Brand Magnetic Barrier Absorbing Materials

1. The research platinum brand magnetic barrier absorbing material of High Magnetic Permeability Advanced Institute (Shenzhen) Technology Co., Ltd. has high magnetic permeability. In smartphones and tablets, high magnetic permeability helps to concentrate magnetic field lines, prevent magnetic field diffusion, and reduce magnetic interference with other components. For example, in the vicinity of magnetic components such as speakers and earphones in devices, magnetic separators can effectively limit the magnetic field within a certain range, avoiding adverse effects on nearby antennas, circuit boards, and other components.
2. Good absorption performance: This material exhibits excellent absorption performance in specific frequency bands. In smartphones and tablets, various wireless communication frequency bands (such as Wi Fi frequency band, Bluetooth frequency band, etc.) coexist, which can easily cause mutual interference. The research platinum brand magnetic isolation sheet absorbing material can effectively absorb electromagnetic waves in these frequency bands, improving the overall electromagnetic compatibility of the equipment.

3、 Applications in Smartphones

（1） Applications near the antenna

1. Improving antenna performance: The antenna in smartphones is responsible for receiving and transmitting various wireless signals. However, due to the limited internal space of the device, the antenna is easily susceptible to electromagnetic interference from other components. The research platinum brand magnetic isolation sheet absorbing material can be placed around the antenna to absorb stray electromagnetic radiation from other components (such as batteries, processors, etc.) and reduce interference with the antenna signal. At the same time, it can also prevent the signal radiated by the antenna itself from interfering with other components, thereby improving the signal reception and transmission efficiency of the antenna.
2. Isolation in multi antenna systems Modern smartphones are often equipped with multiple antennas for different communication functions (such as main antenna, diversity antenna, Wi Fi antenna, etc.). These antennas need to maintain a certain degree of isolation to avoid signal crosstalk.Research Platinum Brand Magnetic Barrier Absorbing MaterialIt can be used as an isolation material and placed between different antennas to absorb and isolate electromagnetic waves, ensuring that each antenna can work independently and efficiently.

（2） Camera and sensor area

1. Reduce the impact of electromagnetic interference on image quality. Smartphone cameras and various sensors (such as light sensors, distance sensors, etc.) are sensitive to electromagnetic environments. Near the camera, electromagnetic interference may cause issues such as noise and color deviation in the image. The research platinum brand magnetic barrier absorbing material can absorb surrounding electromagnetic interference, providing a relatively pure electromagnetic environment for the camera and improving image quality.
2. Ensuring the normal operation of sensors relies on accurate signal detection. Electromagnetic interference may cause sensors to receive incorrect signals, affecting the automatic brightness adjustment, distance sensing, and other functions of the device. Magnetic absorbing materials can effectively reduce this interference, ensuring that sensors can accurately perceive changes in the external environment.

（3） Battery area

1. To prevent electromagnetic interference from the battery on other components, the battery will generate certain electromagnetic radiation during the charging and discharging process. This radiation may cause interference to nearby circuit boards, antennas, and other components. The research platinum brand magnetic isolation sheet absorbing material can be placed around the battery to absorb the electromagnetic radiation generated by the battery and prevent it from causing adverse effects on other components.
2. To improve the safety of batteries to a certain extent,Magnetic barrier absorbing materialIt can also reduce the impact of the electromagnetic environment around the battery on the battery itself. For example, excessive electromagnetic interference may affect the normal operation of battery management systems, while magnetic barrier absorbing materials help maintain the stability of the electromagnetic environment around the battery, thereby improving the safety and service life of the battery.

4、 Applications in tablets

（1） Flat antenna layout

1. Optimizing antenna layout space: The size of a tablet computer is relatively large, but the internal space still needs to be planned reasonably.Research Platinum Brand Magnetic Barrier Absorbing MaterialCan play an important role in antenna layout. It can be used to isolate different types of antennas (such as Wi Fi antennas, 4G/5G antennas, etc.), making the antenna layout more compact, saving space while ensuring isolation between antennas, and improving wireless communication performance.
2. Improving antenna gain by reducing electromagnetic interference around the antenna and using magnetic absorbing materials can help increase the effective radiation power of the antenna, thereby enhancing its gain. In tablets, this means better wireless signal coverage and stronger signal reception capabilities, providing users with a more stable network connection in both indoor and outdoor environments.

（2） Display Area

1. Reducing the impact of electromagnetic interference on display performance is an important component of the user experience for tablet displays. Electromagnetic interference may cause issues such as flickering and uneven color on the display screen. The research platinum brand magnetic barrier absorbing material can be placed behind or around the display screen to absorb electromagnetic interference from other components, ensuring that the display screen can present clear and stable images and colors.
2. The driving circuit and control circuit for protecting the display screen are also very sensitive to electromagnetic interference. Magnetic barrier absorbing materials can provide electromagnetic protection for these circuits, prevent circuit failures caused by electromagnetic interference, and extend the service life of display screens and related circuits.

（3） Audio system

1. The audio system of a tablet computer includes components such as speakers and microphones to improve audio quality. Electromagnetic interference may introduce noise into audio signals, reducing audio quality. The research platinum brand magnetic isolation sheet absorbing material can be applied near audio components to absorb surrounding electromagnetic interference, making audio signals purer and improving the audio experience for users when watching videos, making voice calls, or listening to music.
2. Prevent crosstalk between audio and other signals inside the tablet, as audio signals and other signals (such as data signals, wireless communication signals, etc.) may interfere with each other. Magnetic barrier absorbing materials can prevent crosstalk between audio signals and other signals by isolating and absorbing electromagnetic waves, ensuring that various systems can function properly.

5、 Conclusion

Advanced Institute (Shenzhen) Technology Co., LtdThe research platinum brand magnetic barrier absorbing material has a wide and important application in smartphones and tablets. It plays an irreplaceable role in improving equipment performance, ensuring normal operation, and enhancing user experience by enhancing electromagnetic compatibility, reducing electromagnetic interference, and other methods. With the continuous development of smartphone and tablet technology, the demand for magnetic barrier absorbing materials will also continue to increase. We believe that the research platinum brand magnetic barrier absorbing materials will have broader application prospects in the future.