Low and high frequency high sensitivity RFID passive label and batch production method thereof

A high-sensitivity, passive tag technology, applied in the field of RFID, can solve the problems of limited service life and high cost, and achieve the effect of reducing reliability, improving qualification rate and production efficiency without changing passive characteristics

Active Publication Date: 2013-07-10
CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The energy of passive RFID tags comes from the radio frequency energy emitted by the reader, without the need for a built-in power supply. It has the advantages of small size, light weight, low cost, and almost no limit on service life, but requires a higher power reader; active RFID The energy of the tag comes from its built-in power supply, which has the advantages of long-distance identification and little dependence on the transmission power of the reader, but the cost is high and the service life is limited.

Method used

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  • Low and high frequency high sensitivity RFID passive label and batch production method thereof
  • Low and high frequency high sensitivity RFID passive label and batch production method thereof
  • Low and high frequency high sensitivity RFID passive label and batch production method thereof

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Embodiment Construction

[0030] Below, refer to the attached Figure 1-12 The low-frequency high-sensitivity RFID passive tag of the present invention and its mass production method are described in detail.

[0031] According to the design and shape requirements of the RFID passive tag, determine the inner and outer side length, rounded corners, and thickness of the coil, and make the mold. For example, the standard card requires the length and width of the card to be 85mm and 54mm respectively. Because of the automatic card issuing machine used for card management For this reason, the thickness of the card must also be less than 3mm, and after deducting the package margin, it is the maximum allowable range of the coil. The start end of the coil is marked as "a", the end end is marked as "c", the middle tap is marked as "b", and the coil "ab" is determined according to the electrical performance (L2, Ls, R2, Rs, M) and various comprehensive requirements The number of turns N2, the number of turns of the ...

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Abstract

The invention provides a low and high frequency high sensitivity RFID passive label and a batch production method thereof. The passive label comprises tapped coil composing a label double sensing circuit, a tuning capacitor C12, a RFID chip, wherein, with a given card area and external coupling environment, common coil is substituted by the tapped coil, a label circuit is a double sensing circuit; connection topology relations of the tapped coil, the RFID chip and the tuning capacitor C12 are that: the RFID chip connects an initiating terminal of the coil and intermediate tap, and the tuning capacitor C12 connects the initiating terminal of the coil and a termination terminal of the coil. According to the invention, sensitivity and read-write distance of the label are raised.

Description

Technical field [0001] The invention relates to the field of RFID, in particular to a low-, high-frequency and high-sensitivity RFID passive tag and a mass production method thereof. Background technique [0002] Radio Frequency Identification (RFID) is a technology in which a reading and writing device uses radio frequency signals to automatically identify a response tag attached to a target object and obtain related information. It has a wide range of application prospects. RFID technology can be widely used in asset management, production lines, commercial sales, warehousing logistics (can be widely used in land transportation, water transportation, aviation), intelligent transportation, product anti-counterfeiting, tracking and positioning, etc. Currently RFID technology has become the core of the "Internet of Things" One of the technologies has great economic and social significance. [0003] The basic RFID system consists of an electronic tag (Tag) and a reader (Reader). In ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K19/077
Inventor 宗伟周伟华胡卫东曹锐郭晓泽孙继云佟文清
Owner CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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