Wave-absorbing material is a noise-reduction magnetic film made of soft magnetic powder and resin in a certain proportion.It has high permeability and soft sides covered with double-sided tape.Just paste it in the right position and it has excellent noise suppression.
The initial magnetic conductivity of RMS150 series absorber sheet is 150, but also with high magnetic loss, can have good absorption effect and 10Mhz-6Ghz electromagnetic loss performance, ultra-thin thickness can bring good electromagnetic absorption loss effect, RMS150 series absorber sheet, the thinnest can do 0.05mm, commonly used without glue thickness of 0.05mm, 0.1mm, 0.2mm, 0.3mm, 0.5mm, absorbing chip can meet the ROHS and no halogen.
The absorber sheet can absorb the incident electromagnetic wave energy and convert it into heat or other forms of energy and lose it. When the electromagnetic wave shoots into the inside of the absorber sheet, through the transformation of hysteresis loss, dielectric loss, resistance loss, vortex loss, interference reduction and other mechanisms into thermal energy, potential energy and other forms of energy. To achieve the effect of absorbing electromagnetic waves, the results are excellent, based on the high absorption and low reflection characteristics of electromagnetic waves, Penghui RMS150 series wave absorber sheet is widely used in communication, electronics, aerospace, military, navigation, medical, environmental protection and many applications microwave, high frequency industrial sector, electronic digital products, wireless charging, RFID radio frequency identification, mobile communication equipment, wireless device, office automation equipment (personal computer, TFT LCD, et al.), audio / video communication equipment terminal, digital switch, flexible circuit board, high-speed CPU chip, image processor, oscillating chip, storage chip, high-speed signal line speed, shield inner shell, high-speed microprocessor, WIFI, GSM, Bluetooth, and much more.
Absorber sheet refers to a type of material that can absorb the energy of electromagnetic waves projected on its surface. Applying this material to electronic equipment can absorb leaked electromagnetic radiation and achieve the purpose of removing electromagnetic interference. In engineering applications, in addition to requiring the absorber sheet to have a high absorption rate of electromagnetic waves in a wide frequency band, it is also required to have light weight, temperature resistance, humidity resistance and other properties.
The role and status of electromagnetic wave absorber sheet materials are very prominent, and they have become the secret weapon of modern military electronic countermeasures. Its engineering applications mainly include the following aspects:
1. Stealth technology
Coating absorbing materials on aircraft, missiles, tanks, ships, warehouses and other weapons and equipment and military facilities can absorb reconnaissance radio waves and attenuate reflected signals, thereby breaking through the defense area of enemy radar. This is an anti-radar reconnaissance. A powerful means of reducing exposure of weapon systems to infrared-guided missiles and laser weapons.
2. Improve machine performance
False signals generated by the reflected electromagnetic waves from the aircraft body may lead to false interception or false tracking of high-sensitivity airborne radars; when multiple radars on an aircraft or a ship work at the same time, the crosstalk between the radar transceiver antennas is sometimes very serious. Airborne or airborne jammers may also interfere with airborne radar or communications equipment. In order to reduce this interference, excellent magnetic shielding and absorbing materials are generally used abroad to improve the performance of radar or communication equipment. If the fuselage, antenna and surrounding interfering objects of radar or communication equipment are coated with absorbing materials, the enemy target can be detected more sensitively and accurately; the interference of side lobes to the main lobe can be reduced, and the working distance of the transmitting antenna can be increased. At the same time, it can reduce the interference of false target reflections to the receiving antenna; the application of absorbing materials in satellite communication systems will avoid interference between communication lines, improve the sensitivity of on-board communicators and ground stations, and thus improve communication quality.
Due to the application of high-power radar, communication machine, microwave heating and other equipment, preventing electromagnetic radiation or leakage and protecting the health of operators is a new and complex topic, and absorbing materials can achieve this purpose. In addition, current household appliances generally have electromagnetic radiation problems, which can be effectively suppressed by rational use of absorbing materials and their components.
4. RDID|NFC wireless charging magnetic separator
When NFC/RFID works, the magnetic field formed by the antenna is easily interfered by objects such as metal, which leads to unnecessary errors in device identification. The use of nfc absorbers can eliminate such errors. For example, the NFC/RFID antenna is generally placed between the back cover of the mobile phone and the battery, and the battery easily interferes with the magnetic field. At this time, we only need to put a layer of absorbing material between the antenna and the battery to eliminate the adverse effects of this interference. The nfc absorber can interfere with the stickers where it is located, which is convenient, environmentally friendly and fast, solves the problem of wireless charging heating and improves the efficiency of wireless charging.
PH mainly produces absorbing sheet, EMI suppression sheet, sintered ferrite sheet, electromagnetic shielding coating and other electromagnetic functional materials. It is the first national high-tech enterprise in China that focuses on the R&D, production and sales of sheet absorbing materials and electromagnetic shielding coatings. The products are sold to all over the world and are well received by the industry.
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