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RFID electronic tag, radio frequency antenna and preparation method based on fractal spring structure

A technology of radio frequency antennas and electronic tags, applied in the structural form of radiation elements, record carriers used by machines, instruments, etc., can solve the problems of non-stretchability and limited application range, achieve large bending deformation capacity, expand application range, and apply wide range of effects

Active Publication Date: 2015-12-02
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

Existing RFID electronic tags are bendable, but not stretchable or have small stretching deformation, which limits their application range

Method used

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  • RFID electronic tag, radio frequency antenna and preparation method based on fractal spring structure
  • RFID electronic tag, radio frequency antenna and preparation method based on fractal spring structure
  • RFID electronic tag, radio frequency antenna and preparation method based on fractal spring structure

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Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0030] see figure 1 , The RFID electronic tag of the present invention includes a substrate 11 , an RFID electronic tag antenna 12 and a chip 13 .

[0031] The RFID electronic tag antenna is attached to the surface of the substrate, and the antenna is a key component of the RFID electronic tag with bending and stretching properties. In the present invention, the structure of the RFID electronic tag antenna is: a plurality of coil segments in a fractal spring structure are sequentially connected end to end to form a closed coil.

[0032] The coil segment is a planar fractal spring structure obtain...

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Abstract

The invention discloses an RFID (radio frequency identification) electronic tag radio frequency antenna based on a planar fractal spring structure. The electronic tag radio frequency antenna is a closed coil formed by multiple coil sections, of a fractal spring structure, which are in sequential end-to-end connection. The invention further provides an RFID electronic tag based on the radio frequency antenna, the radio frequency antenna is attached to a substrate, the telescoping direction of a spring of each coil section is consistent with the stretching direction of the substrate at position of the coil section. The invention further provides a preparation method of the RFID electronic tag. Radio frequency antennas which are of a multi-level spring fractal structure and consistent with stretching direction of the substrate are disposed transversely and longitudinally on the substrate, large deformation redundancy is achieved, axial and transverse stretching and compression can be borne, large bending deformation capability is achieved, and accordingly the RFID electronic tag can be attached to object surfaces which may generate complex elastic deformation, such as human skin and clothes, and application range of RFID electronic tag is expanded.

Description

technical field [0001] The invention relates to the field of flexible electronics manufacturing, in particular to an RFID electronic tag based on a fractal spring structure, a radio frequency antenna and a preparation method. Background technique [0002] Radio frequency identification (Radio Frequency Identification, RFID) is the use of radio frequency signals and their spatial coupling and transmission characteristics of non-contact two-way communication to achieve automatic identification and information collection of stationary or moving objects. RFID electronic tags are composed of three parts: antenna, chip and substrate. The rapid development of Internet of Things technology and intelligent manufacturing technology has brought broader applications to RFID electronic tags, which will gradually penetrate into various fields of human life and work, have a profound impact on human life, and bring more convenience to human beings. Comfortable life. [0003] Patent docume...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K19/077H01Q1/38
Inventor 黄永安尹周平董文涛王曳舟刘慧敏
Owner HUAZHONG UNIV OF SCI & TECH
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