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RFID tag having wideband protection accessory for use in RFID

一种RFID标签、金属件的技术，应用在RFID标签领域，能够解决RFID标签缺乏便利性等问题

Inactive Publication Date: 2014-04-09
HITACHI SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In response to such demands, if protective metal parts are individually prepared for each frequency band of the RFID tag, there are problems in terms of cost and installation space, and there are problems such as lack of convenience in the application of the RFID tag.

Method used

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  • RFID tag having wideband protection accessory for use in RFID
  • RFID tag having wideband protection accessory for use in RFID
  • RFID tag having wideband protection accessory for use in RFID

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0090] pass Figure 1 to Figure 6 , the first embodiment of the present invention will be described.

[0091] figure 1 It is a top view of an RFID tag with a protective metal part according to the first embodiment of the present invention, figure 2 show figure 1 The BB' profile. in addition, Figure 3A It shows the state in which the RFID tag with the protective metal part is unfolded and disassembled. The RFID tag with protective metal parts has a three-layer structure of a protective metal plate 1 on the surface, a metal substrate 2 on the bottom layer, and an insulating layer 3 in the middle. The protective metal plate 1 has one or more slits 11 extending parallel to the middle in the length direction of the metal plate. In the slit 11 , an insulating space by air or an insulating layer or an insulating film filled with an insulating material or the like (hereinafter, they are simply referred to as insulating coating) is provided. In other words, the width of the sl...

Embodiment 2

[0127] Next, a second embodiment of the present invention will be described.

[0128] In the protective metal part of the antenna of the present invention, in the communication electromagnetic waves of LF and HF, the insulating properties of the slits of the metal arm portion with the slits can allow the transmission of electromagnetic waves. In addition, in UHF and microwave communication electromagnetic waves, regarding the size of the antenna structure, for example, the long side of the metal part resonates in the UHF communication electromagnetic wave, and the short side resonates in the microwave to improve sensitivity. Such a common protective metal piece can be made.

[0129] According to the second embodiment of the present invention, the outer dimension of the axial direction of the protective metal body 1 is set to the dimension of the dipole antenna or the dimension of the electromagnetic wave resonance mode.

[0130] For example, in the Figure 5 When Du is the e...

Embodiment 3

[0142] In Embodiments 1 and 2, one of a plurality of RFID tag inserts corresponding to a wide frequency band from LF to microwave is provided in an insertion hole in an insulating layer to achieve common use. In contrast, two antennas can also be selected in the insulating layer at the same time, that is, from Figure 3B Select one antenna from each of the "1st frequency band group" and "2nd frequency band group" of "Common Classification Example 1" shown, or select one antenna from "Shared Classification Example 2" of "Rod Antenna Band" and "Coil Antenna Band" "Select one antenna respectively, and store the plug-ins of these two antennas in a protective metal piece at the same time.

[0143] As a third embodiment of the present invention, using Figure 7A ~ Figure 7B , to describe the structure in which the inserts of the above two antennas are housed in one protective metal part at the same time.

[0144] Figure 7A It is a perspective view showing the appearance of the R...

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PUM

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Abstract

The present invention discloses an RFID tag having wideband protection accessory for use in RFID. To provide strong protection for an RFID insertion object, or during the execution of installing a target object and in the use of sturdy installation of riveting or welding or the like, when the insertion object is packaged with a metal plate or the like, electromagnetic waves cannot enter the interior thereof so that RFID signal can not be received / sent. Electromagnetic waves of LF or HF band will generate reflection of eddy currents on the metal plate surface, thus, to counteract this problem, a slit-type breach portion is disposed on the metal plate, and the insertion object is located right below the slit-type breach portion. In addition, for electromagnetic waves of UHF / microwave band, the metal plate is set at a frequency for generating resonance, thereby becoming a highly sensitive size. Using this metal plate to form a protection accessory enables it to become a metal-matching tag responsive to multiple frequencies and internally accommodate multiple kinds of insertion objects.

Description

[0001] This application is a divisional application of a new application with an application date of April 28, 2010, an application number of 201010171619.0, and an invention title of "RFID tag equipped with RFID broadband protection metal parts". technical field [0002] The present invention relates to RFID (Radio Frequency Identification) wide-band protective metal parts RFID tags, in particular to RFID tags that can be used in LF (low frequency), HF (high frequency), UHF (ultra high frequency) and microwave band wide bands Besides, it is an RFID tag to protect metal fittings to improve electrical and mechanical impact resistance. Background technique [0003] Generally speaking, an RFID tag is formed by adding a protective film, an adhesive for installation, and a mounting part to an insert. The insert is formed by connecting an IC chip with identification information such as an ID number built into an integrated circuit. Antenna, and a base material integrally mounted w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K19/077
Inventor 山内繁山方茂肉户弘明森本裕文
Owner HITACHI SYST