A high frequency nfc tag for anti-metal dielectric
An anti-metal and tag technology, applied in the field of high-frequency NFC tags, can solve problems such as poor design effect, and achieve the effect of alleviating negative effects, convenient use, and enhancing sensing ability
Active Publication Date: 2022-08-09
ARIZON RFID TECH YANGZHOU
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[0024] The technical solutions in the examples of the present invention will be described in detail below with reference to the accompanying drawings in the examples of the present invention.
[0025] A high-frequency NFC tag for anti-metal media, comprising a label body 1, a face material 2, and a backing paper 3, the front material 2 and the backing paper 3 are respectively covered on the front and back of the label body 1, and on the front of the label body 1 The chip is provided; the front and back of the label body 1 are respectively provided with a front antenna coil 4 and a reverse antenna coil 5. The winding direction of the front antenna coil 4 is opposite to that of the reverse antenna coil 5. The line width is 0.2mm~1.0mm, the line width of the reverse antenna in the reverse antenna coil 5 is 1~3 times the line width of the front antenna in the front antenna coil 4, and the registration accuracy of the front antenna coil 4 and the reverse antenna coil 5 is less than ...
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The present invention relates to a high-frequency NFC label for anti-metal medium, comprising a label body, a face material and a backing paper. The front and back of the label body are respectively covered with the face material and the backing paper; the front and back of the label body are respectively A front antenna coil and a reverse antenna coil are provided, and the winding direction of the front antenna coil is opposite to that of the reverse antenna coil, and the line width of the reverse antenna in the reverse antenna coil is 1- of the front antenna line width in the front antenna coil 3 times, the registration accuracy of the front antenna coil and the back antenna coil is less than 0.15mm; the front antenna coil and the back antenna coil are riveted and connected, and the front antenna coil is connected to the chip on the front of the label body; the label body faces the front or back of the backing paper A wave-absorbing material layer is provided. Through the invention, the reverse antenna coil is added to the label design to achieve better performance of the small-sized label; the structure of the absorbing material is added to realize the high-frequency label on the metal surface to alleviate the negative effect of the metal surface on reading the label.
Description
technical field [0001] The invention relates to a high-frequency NFC tag used for anti-metal medium, and belongs to the technical field of electronic tag design. Background technique [0002] RFID electronic tags are often used in metal environments. When RFID electronic tags are close to metal, due to the strong reflectivity of metal to electromagnetic waves, the signal will weaken and the reading distance will become closer. Serious interference will cause The phenomenon of card reading failure occurs; therefore, if the RFID high-frequency tag (passive tag) is attached to the surface of metal and other objects or attached to a place with metal devices in the vicinity, the signal sent by the reader is easily affected by the eddy current attenuation of the metal, which makes the signal The strength is greatly reduced, causing the tag to read too close or fail to read. The current general solution is to stick a thick layer of foam material on the back of the electronic label...
Claims
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IPC IPC(8): G06K19/077
CPCG06K19/07722G06K19/07745G06K19/07773
Inventor 范琳琳
Owner ARIZON RFID TECH YANGZHOU