NFC absorber

Product Description: NFC absorber
Cell phone payment (NFC) is realized by a 13.56MHz RFID radio frequency identification system. The RFID smart tag for this application is the one that is affixed to the back cover shell of the cell phone so as to maximize space saving. In handheld electronic devices such as cell phones, electronic tags to be integrated or affixed to the electronic device, as a component of the device to play a function, often due to space constraints, it is unavoidable to RFID tags (usually passive) affixed to the surface of conductive objects, such as metal or affixed to the proximity of the position of a metal device. Label in the reader issued by the signal effect of excitation induced by the alternating electromagnetic field is very easy to be metal eddy current attenuation effect and make the signal strength greatly weakened, resulting in the failure of the reading process. In order for the to products can be better applied to read the card, the need to increase in the wave absorbing sheet in the product.
The principle is to convert the interference microwave in the electronic equipment into heat loss. the main frequency range of the NFC absorber is from 100MHz to 6GHz. for different frequency ranges and applications, we use different magnetic materials, and according to the frequency range, antenna size, etc., design special specifications of the material to meet the customer.
Raw material: composite polymer + microwave absorbing material
Thickness (mm): 0.15, 0.20, 0.25, 0.30, 0.50
Standard size (mm): 210×300
Adaptive temperature (℃): -30 ~ 120
Electronic impedance (Ω/□): Min.1.0×109
Frequency range: 100MHz～6GHz microwave absorption
Density (g/cm3): 3.4±0.5
Tensile strength (kg/cm2): 5.4
Application: Suppression of electromagnetic wave interference and noise radiation.

NFC absorber is a wave-absorbing material with high magnetic permeability, which can play a role in gathering the magnetic flux of the beam, providing a solution to the problem of RFID reading and writing interference.

Wave absorbing material is a kind of functional composite material mainly absorbing electromagnetic waves, it can eliminate the reflection of electromagnetic waves back and forth in electronic devices and functional modules, reduce the interference of clutter to its own equipment, also can effectively prevent electromagnetic radiation from the surrounding equipment and personnel harassment and injury, is a simple means to eliminate electromagnetic wave pollution.

NFC payment is a kind of payment method based on near-field communication technology, mainly using wave-absorbing material technology to reduce or eliminate the interference of RF signals to bank cards or electronic devices.

In NFC payments, NFC absorber materials are materials that can absorb electromagnetic waves and convert them into energy. These materials are generally made of metallic or non-metallic materials with a certain thickness and density that can absorb electromagnetic waves and convert them into energy over a wide range of frequencies. The primary role of these materials is to convert RF signals into energy to support the operation of NFC payment systems.

In an NFC payment system, the contact between the card or electronic device and the NFC material generates induced currents and electromagnetic resonance, which leads to a special interaction between these devices and the NFC absorber material that reduces or eliminates interference from the RF signal. This interaction, often referred to as “wave absorption,” can improve the reliability and security of NFC payment systems and help reduce delays in the payment process.

It is important to note that wave-absorbing materials for NFC payments are not used singularly, but need to be designed and selected based on specific application requirements. For example, in the field of intelligent home, NFC absorber materials can be used to reduce electromagnetic wave interference in home systems; in the area of mobile devices, NFC absorber materials can be used to reduce signal interference in mobile devices; in the field of logistics management, NFC absorber materials can be used to reduce RF signal interference in the logistics process. Therefore, when choosing NFC absorber materials, it is necessary to design and select according to specific needs.

NFC payment is also a contactless payment method, which realizes payment through proximity wireless communication technology. In NFC payment, a short-distance wireless communication connection needs to be established between the payment device and the card reader to complete the payment transaction. To ensure the security of the payment process, wave-absorbing materials are needed to prevent signal leakage and interference.

Wave-absorbing material is a material that can absorb electromagnetic waves. Its main principle is to use the electromagnetic wave absorber in the material to convert electromagnetic waves into heat energy, so as to achieve the effect of wave absorption. In NFC payment, wave-absorbing materials are mainly used to prevent signal leakage and interference and to ensure communication safety and stability between payment devices and card readers.

The selection of wave-absorbing materials needs to consider their frequency range, wave-absorbing performance, thickness, and cost. Currently, the commonly used wave-absorbing materials include various metal materials, carbon fiber materials, graphene materials, etc. Among them, graphene material has excellent wave absorption performance and smaller thickness, but the cost is higher; metal material has a relatively lower cost, but the thickness is larger and not suitable for use in small payment devices.

In NFC payment devices, wave-absorbing materials are usually applied inside the housing or antenna of the payment device to prevent signal leakage and interference. At the same time, in order to ensure the overall performance of the payment device, the selection of wave-absorbing materials also needs to consider its impact on the weight, appearance, and manufacturing process of the device.

NFC absorber material is a type of material that is used to absorb electromagnetic waves in the near-field communication (NFC) range. It is commonly used in electronic devices such as smartphones, tablets, and other NFC-enabled devices. The material is designed to reduce the amount of radiation that is emitted by the device and to prevent interference with other nearby electronic equipment. The use of NFC absorber material has become increasingly important in recent years due to the growing use of NFC-enabled devices and the need to reduce electromagnetic interference.

One of the main benefits of using NFC absorber material is that it helps to reduce the amount of radiation that is emitted by electronic devices. This is particularly important for devices that are used close to the body, such as smartphones and wearables. The use of NFC absorber material can help to reduce the risk of exposure to electromagnetic radiation, which has been linked to a range of health concerns including cancer and other long-term health effects.

Another benefit of NFC absorber material is that it helps to prevent interference with other electronic equipment. This is particularly important in areas where there are many electronic devices in close proximity, such as offices, hospitals, and airports. The use of NFC absorber material can help to reduce the amount of electromagnetic interference that is generated by these devices, which can help to improve overall performance and reduce the risk of malfunctions or failures.

There are several different types of NFC absorber material available, including foam-based materials, ferrite-based materials, and conductive polymers. Each type of material has its own unique properties and benefits, and the choice of material will depend on the specific application and requirements of the device. In general, foam-based materials are lightweight and flexible, making them ideal for use in mobile devices such as smartphones and tablets. Ferrite-based materials are more rigid and have higher magnetic permeability, which makes them ideal for use in larger electronic devices such as laptops and desktop computers. Conductive polymers are highly conductive and can be used in a wide range of electronic devices, from small wearables to large industrial equipment.

Overall, NFC absorber material is an essential component of many electronic devices, helping to reduce electromagnetic interference and improve overall performance. As the use of NFC-enabled devices continues to grow, the importance of NFC absorber materials will only continue to increase, as manufacturers strive to reduce the amount of radiation emitted by these devices and prevent interference with other electronic equipment.