Japan, Nitta
Nitta RFID Magnetic Sheet
Product Made in Japan
Manufacturer: Nitta
Product’s name: RFID Magnetic Sheet
RFID Magnetic Sheet
RFID Industry Background
Applications for RFID systems are rapidly expanding as such systems find wide use in mobile equipment, such as cellular phones, RFID tags, non-contact IC cards, and more.
Market expansion is also predicted for such applications as access control systems for IT security and commodity distribution management systems for performing inspections and inventory checks.
However, RFID systems have a weakness of failure to communicate when there is a metal object present next to the antenna. A high-performance magnetic sheet that can solve this problem is needed.
Development Concept
The 13.56 MHz RFID system has a problem with communication failure when a metal object is nearby. By using the RFN series, it has now possible to use RF tags even over metal.
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Communication experiment with 13.56 MHz band RFID system
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Product Specification
Type Notation | RFN7 | RFN8 | RFN10 | |
Characteristics | Sheet Type / Roll type | |||
Frequency (MHz) | 13.56 | |||
Permeability (13.56MHz) | μ‘ | 46 | 32 | 45 |
μ” | 10 | 9 | 3 | |
Thickness (μm) | 50 / 100 | |||
Surface Resistivity (Ω/□) | Over 108 | Over 104 | ||
Flame Retardant | UL94 V-0 level | Non flame retardant | ||
Service Temperature Range (°C) | -40 to +100 | -40 to +60 | ||
Sheet Dimensions (mm) | 200 × 300 / 180 mm x 100 m Roll |
* Please contact us regarding thickness and format.
* This product is not designed for use as a radio wave absorber.
* We strictly comply with Japan’s security and export control laws.
* Figures above shows the mean value and are not guaranted values.
* Roll width size :(max) 360 mm in width
RFN series-Permeability dependent on frequency
Ordering Format
Sheet type example:
For [RFN7- 100μm thick, 200 mm x 300 mm size with 30 μm thick double-sided adhesive tape, half-cut available]
Roll type example:
For [RFN10-100 μm thick, 180 mm width x 100 m length with 30 μm thick double-sided adhesive tape]
Electromagnetic Wave Analysis
An example of electromagnetic wave analysis (for 13.56 MHz band RFID tag)
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Basic Principle
Normal Communication Condition
RFID wireless communication becomes possible by magnetic flux penetrating between two coil antennas.
Communication Condition with a Metal Surface in the Vicinity
Eddy current occurs at the metal in the vicinity of a tag, caused by the Reader/Writer’s magnetic field. This magnetic field (demagnetizing field) caused by the eddy current cancels the magnetic filed necessary for communication.