High-frequency-point RFID (Radio Frequency Identification) tag with group reading function

Abstract

The invention relates to a high-frequency-point RFID (Radio Frequency Identification) tag with a group reading function, and belongs to the technical field of an HF (High-Frequency) tag in the RFID tag. Tags independently formed by a base material, an antenna and a chip connected to an antenna chip are stacked in sequence, wherein a stacking amount is less than or equal to 100 pieces, antenna length on each tag is 9-120mm, antenna width is 9-120mm, a number of turns N is 1-5, line width is 0.1-5mm, and line distance is 0.1-6mm. By use of the tag, a multi-tag stacking test function is realized, and in addition, the number of turn of front side aluminum coils is reduced to greatly lower the complexity level and the production cost of the production technology of the HF antenna. On the basis of guaranteeing the multi-tag test function quality of the HF antenna, an application range is expanded, economic benefits are improved, and the tag exhibits high practicality.

Description

technical field [0001] The invention relates to a high-frequency point RFID tag with a group reading function, belonging to the technical field of HF (high frequency) tags in RFID tags. Background technique [0002] The existing radio frequency identification tag (RFID) technology is mainly divided into UHF (ultra high frequency) tag and HF (high frequency) tag, which are two independent tags with different working modes. UHF tag is a chip with a folding coupler. The pole antenna works in the 800-1000MHZ frequency band of RFID technology; the HF tag is a chip with a coil antenna that works in the 13.56MHZ frequency band of RFID technology, and the number of antenna turns in the existing HF tag is at least 5 turns. In some RFID applications, multiple UHF and HF electronic tags are required to work at the same time (called tag group reading), however, conventional HF and UHF electronic tags are very sensitive to multi-tag group reading, resulting in related passive electronic ...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is aimed at the existing ordinary HF electronic tags (frequency point is 13.56MHz) when performing n-chip stacking group reading test, the antenna frequency point performance cannot be read out, resulting in product failure; 50mm), because the adjacent coils will couple with each other, generate corresponding magnetic field and electric field, affect and weaken the magnetic field of the electronic tag itself, resulting in weakening of the performance of the electronic tag, changing the frequency point, and even making the electronic tag unable to be read and written Insufficient reading by devices, providing a high-frequency point RFID tag with group reading function, through the present invention to realize the group reading test of multiple tags

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