Common Thickness of Ferrite Sheet

Ferrite is a non-metallic magnetic material, about its production process is mainly made of ferric oxide and other metal oxide preparation and sintering, its relative permeability can be up to several thousand, resistivity is 1011 times of metal, eddy current loss is small, suitable for the production of high-frequency electromagnetic devices. Now it is a non-metallic magnetic material widely used in the field of high frequency weak current.

And there are many kinds of ferrite, permanent magnet ferrite is also a commonly used material, mainly because it can retain strong magnetic properties for a long time, can be used for a long time and produce a magnetic field, which is also the reason why it is called as permanent magnet ferrite.

Ferrite sheet is a magnetic film used for NFC antenna to resist metal shielding interference and enhance the sensitivity of induction signal reception. 13.56MHZ antenna Ferrite sheet/film is a kind of high temperature sintered ferrite material. In NFC payment mobile phones and other handheld devices, the main role of electronic labels is to reduce the absorption of metal materials to the magnetic field of the signal. At the same time, the ferrite film itself is a kind of high-temperature sintered ferrite material, which can effectively increase the induction distance by increasing the magnetic field intensity.

RFID | NFC resistance ferrite piece of metal material is a kind of functional composite materials to absorb electromagnetic waves is given priority to, eliminate shielding electromagnetic wave bounces back and forth in the body cavity, reduce noise interference with their own equipment, also effectively prevent interference and electromagnetic radiation on the surrounding equipment and personnel damage, is a kind of elimination of advanced means of electromagnetic pollution.

Common thickness of ferrite sheet includes: 0.08mm 0.1mm 0.2mm 0.3mmNFC ferrite sheet here, magnetic refers to the flexible magnetic sheet, non-sintered ferrite hard magnetic sheet, its single side of the back glial soft, smooth products and ultra-thin thickness of 0.15mm~0.5mm, NFC ferrite magnetic sheet at 13.56MHz electromagnetic wave frequency can be up to 35 permeability. The role of NFC soft magnetic sheet in NFC equipment is roughly two, one is to isolate metal to prevent communication waves and metal skin effect loss electromagnetic energy, two is to increase the magnetic "positive energy" (magnetic field strength) between Reader and Transponder reaction sensitivity is high, reading distance.