^{3M 電磁波吸收材 AB5010R Series EMI Absorber AB5000R Electromagnetic Absorber for RFID Application}

3M 電磁波吸波材 AB5000R 系列主要設計用於 13.56 MHz (RFID/NFC) 頻段的近場通訊優化與磁屏蔽。這是一種高磁導率的柔性軟磁片材，常用於抑制金屬表面對電磁感應影響，亦具備良好的屏蔽與吸收效果。

基材與結構： 由軟磁片填充於聚合物中，具有優秀的柔韌性，易於貼合。
磁性特性： 具有高磁導率 (High Permeability)，有效吸收近場輻射。

吸收頻率： 最適用於 13.56 MHz (RFID/NFC) 頻段以及針對電子設備近場和腔體共振的干擾抑制。
膠帶特性： 單面為非導電壓敏膠 (Non-conductive PSA)，方便施工應用。
 

3M AB5010R is magnetic sheet for radio frequency application. 3M AB5010R is designed to have a high magnetic permeability at 13.56MHz. This product effectively solve the metal interference effect of tag and reader when the metal surrounding atmosphere. 3M AB5010R consists of dark color magnetic material layer and pressure-sensitive adhesive.

3M AB5010R is typically used for the 13.56MHz RFID reader and tag be mounted directly upon a highly conductive surface. This might be the reader antenna surrounded by metallic body or tag mounting on conductive substrate such as gas bottles. However, it is not possible to communicate each other under this metallic atmosphere. The magnetic fluxes through  the conductive surface induce eddy current within the conductor, which oppose the field responsible for their creation. It reduces the magnetic field in the surface of the conductor to such a degree that communication between reader and tag is no longer possible. By inserting 3M AB5010R between the antenna and conductor surface it is possible to largely prevent the occurrences of the eddy currents. This makes it possible to mount the antenna on metal surfaces.

Many factors determine the true communication range such as antenna size, sensitivity, field
intensity, modulation algorithm and environment. inserting AB5010R can increase communication distance. To maximize the performance, it is necessary to take into account the fact that the inductance of antenna may be increased by AB5010R. So, it is necessary to adjust the resonance frequency by the change of capacitance and inductance value.
 

Properties : Typical Value
Type of absorber material: Magnetic particle embedded in polymer resin composite
Product Structure: Absorber sheet with one side double coated adhesive tape
Thickness Total: 0.15mm (0.12mm absorber, 0.03mm adhesive layer)
Magnetic permeability: 1 50 (Typical value)
Resistivity: 1x106Ω
Operating temperature: -30 ~ +85℃
Tensile Strength: 3 4MPa(min.)

 悠遊卡 IC晶片 13.56MHz RFID 靠近金屬時 磁場無法導通 需要 導磁貼片

RFID/NFC 讀卡器與標籤： 解決貼在金屬表面導致的磁力線中斷問題。