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

A high-sensitivity, passive tag technology, applied in the RFID field, can solve the problems of high cost and limited service life, and achieve the effect of reducing reliability, increasing cost, and large coil winding consistency

Active Publication Date: 2011-11-23
CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
View PDF2 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • 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

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] 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.

[0030] According to the design shape requirements of RFID passive tags, determine the inner and outer side lengths, rounded corners, and thickness of the coil, and make molds, for example: standard cards require card length and width dimensions: 85mm and 54mm, due to the automatic card issuing machine used for card management The thickness of the card must also be less than 3mm, and the margin of the package is deducted, which is the maximum allowable range of the coil size. The start end of the coil is marked as "a", the end end is marked as "c", and the middle tap is marked as "b", and then the coil "a-b" is determined according to the electrical properties (L2, Ls, R2, Rs, M) and various comprehensive requirements Number of turns N2, number of turns of coil "b-c" N1, number of turns of coil "...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

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-frequency high-sensitivity RFID passive tag and a mass production method thereof. Background technique [0002] Radio Frequency Identification (RFID) is a technology that read-write equipment uses radio frequency signals to automatically identify the response tag attached to the target object and obtain relevant information. It has broad application prospects. RFID technology can be widely used in asset management, production lines, commercial sales, warehousing and logistics (can be widely used in land transportation, water transportation, aviation), intelligent transportation, commodity anti-counterfeiting, tracking and positioning, etc. At present, RFID technology has become the core of the "Internet of Things" One of the technologies with huge economic and social significance. [0003] The basic RFID system consists of an electronic tag (Tag) and a reader (Reader). In practical app...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap