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Article provided with electromagnetically coupled module

An electromagnetic coupling and article technology, which is applied in the direction of circuits, printed matter, printed circuits, etc., can solve problems such as changes in antenna resonant frequency characteristics, difficult installation of wireless IC devices, and difficulty in installation, and achieve the effect of stable frequency characteristics

Active Publication Date: 2012-04-25
MURATA MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the conventional wireless IC device, since the wireless IC chip 610 is directly electrically connected to the antenna patterns 601 and 621 using Au bumps, and the wireless IC chip 610 is mounted on the antenna patterns 601 and 621, it is necessary to mount the wireless IC chip 610 on the antenna patterns 601 and 621. Position the tiny wireless IC chip 610 on the films 600, 620 of the area
However, there is a problem that it is extremely difficult to mount a tiny wireless IC chip 610 on a large-area film 600, 620, and if the position is shifted during mounting, the resonant frequency characteristics of the antenna will change.
[0005] Although the application of wireless IC devices is very wide, it is currently difficult to mount wireless IC devices on various items because the resonance frequency characteristics change depending on the arrangement state of the antenna, etc.

Method used

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  • Article provided with electromagnetically coupled module
  • Article provided with electromagnetically coupled module
  • Article provided with electromagnetically coupled module

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment

[0185] (for the first embodiment, refer to Figure 36 )

[0186] Example 1 Figure 36 As shown, it is applied to an automobile 200, and a vehicle body 201 made of a steel plate of the automobile 200 is used as a radiation plate. The above-mentioned electromagnetic coupling module 1 is pasted on the steel plate part of the vehicle body 201, so that the above-mentioned power supply circuit is electromagnetically coupled with the steel plate part (radiating plate). According to the vehicle inspection information, vehicle registration information, user information, etc. stored in the wireless IC chip provided in the electromagnetic coupling module 1, asset management of the vehicle 200 can be performed. In addition, the electromagnetic coupling module 1 can be pasted on (or embedded in) the license plate 202, and the license plate 202 can be used as a radiation plate, or a metal object such as an anti-fog device (anti-fog conductor pattern) can also be used as a radiation plate....

no. 2 Embodiment

[0190] (for the second embodiment, refer to Figure 37 )

[0191] Example 2 Figure 37 As shown, it is applied to a lighting lamp 210 installed on a highway, and the above-mentioned electromagnetic coupling module 1 is pasted on the metal lamp pole part 211 of the lighting lamp 210, and the lamp rod part 211 is used as a radiation plate. The power supply circuit of the electromagnetic coupling module 1 is electromagnetically coupled to the light pole part 211 . Asset management can be performed based on the installation date, equipment information, materials used, and the like of the illuminating lamp 210 stored in the wireless IC chip. In addition to the lights 210, asset management can also be performed on game equipment, public buildings, and the like installed in parks.

no. 3 Embodiment

[0192] (the 3rd embodiment, refer to Figure 38 )

[0193] Example 3 Figure 38 As shown, it is applied to an electronic paper composed of a display screen 221 and a frame portion 222 , and the metal frame portion 222 of the electronic paper 220 is used as a radiation plate. The power supply circuit of the electromagnetic coupling module 1 is electromagnetically coupled to the frame portion 222 . Asset management can be performed based on the purchase date, purchase amount, purchaser, etc. of the electronic paper 220 stored in the wireless IC chip.

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PUM

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Abstract

A product includes a power supply circuit board, which includes a power supply circuit having a stable frequency characteristic which enables communication among various products to be obtained. The product includes a power supply circuit board including a power supply circuit arranged thereon having an inductance element, and a wireless communication circuit board electrically connected to the power supply circuit. The wireless communication circuit board is mounted on the power supply circuit board. The product further includes a radiation plate which emits a transmission signal which is supplied from the power supply circuit through electromagnetic field coupling and which has a frequency substantially determined in accordance with a resonant frequency of the power supply circuit, and which is used to supply a reception signal to the power supply circuit through electromagnetic field coupling.

Description

technical field [0001] The present invention relates to an article with an electromagnetic coupling module, in particular to an article with a wireless IC chip and an electromagnetic coupling module used in an RFID (Radio Frequency Identification: radio frequency identification) system. Background technique [0002] In recent years, as an article management system, a reader / writer that generates an induced electromagnetic field and an IC tag (tag) (hereinafter referred to as a wireless IC device) that stores predetermined information attached to an article have been developed to communicate in a non-contact manner. An RFID system that transmits information. As a wireless IC device used in an RFID system, for example, devices described in Patent Documents 1 and 2 are known. [0003] That is, if Figure 60 As shown, a device in which an antenna pattern 601 is provided on a plastic film 600 and a wireless IC chip 610 is mounted on one end of the antenna pattern 601, such as ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K19/077G06K19/07H05K1/16B42D15/10G09F3/00
CPCG06K19/07749H05K1/16H05K1/0239G06K19/07771H05K1/141H01Q1/2283H01Q11/08H05K2201/10674H05K2201/10098H01L2924/0002H05K1/165H01L2224/16225H05K1/0243G06K19/07745H01Q7/00H05K1/162G06K19/07756G06K19/077G06K19/07H01Q1/44B42D25/305
Inventor 加藤登木村育平岩崎公一石野聪
Owner MURATA MFG CO LTD
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