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Aggregate electric wire, coil antenna, ic card and portable wireless device

A loop antenna and wire technology, applied to loop antennas, antenna supports/mounting devices, antennas, etc., can solve a lot of time and cost problems, and achieve the effects of suppressing occupied area, reducing production time and production costs

Inactive Publication Date: 2006-07-26
SUMITOMO ELECTRIC IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, similar to other loop antennas, in order to apply devices such as portable radio devices that have various shapes and sizes and whose designs are frequently changed, it is necessary to change the jig according to the changed shape and size of the antenna. A lot of time and expense are required on the jig

Method used

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  • Aggregate electric wire, coil antenna, ic card and portable wireless device
  • Aggregate electric wire, coil antenna, ic card and portable wireless device
  • Aggregate electric wire, coil antenna, ic card and portable wireless device

Examples

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Embodiment Construction

[0025] Below, while referring to the attached Figure 1 An embodiment of the present invention in which an electric wire, a loop antenna, an IC antenna, and a portable radio device are combined will be described.

[0026] (Aggregate electric wire, loop antenna form)

[0027] figure 1 is a plan view showing the assembled electric wires of the present embodiment, figure 2 It is a cross-sectional view showing the cross-sectional shape of the assembled electric wire.

[0028] Such as figure 1 and figure 2 As shown, the collective wire 1 is composed of three insulated wires 2 . These insulated wires 2 have a structure in which, for example, a conductor 3 having a circular cross-section made of a tin-plated annealed copper wire with a conductor diameter of about 0.18 mm is covered with an insulating coating 4 .

[0029] The insulation coating 4 covering the conductors 3 is color-coded by attaching different colors to each conductor 3 .

[0030] These insulated electric wire...

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PUM

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Abstract

The present invention provides a collective electrical cable, a coil antenna, an IC antenna, and a portable radio set which are applicable to various shapes and sizes without requiring a long manufacturing time and manufacturing cost. The collective electric cable 1 of the present invention is constituted by putting together three insulating electric cables 2 each formed by providing a conductor 3 with an insulating coating 4, the three insulating electric conductors 2 which are put together are looped by connecting different conductors 3 at both end portions, and the connected conductors 3 are electrically conducted to one another. Consequently, the coil antenna 11 is constituted.

Description

technical field [0001] The present invention relates to, for example, a collective electric wire and a loop antenna used for communication by electromagnetic induction, and an IC card and a portable radio device equipped with them. Background technique [0002] Loop antennas for RFID (Radio Frequency Identification) used on IC (Integrated Circuit) cards, etc., use electromagnetic induction as the communication method, and the frequency range used is generally 13.56 MHz. This loop antenna can perform communication in the above-mentioned frequency range by setting a coil shape with about 5 turns. [0003] As this loop antenna, in order to be incorporated into a card, for example, a circuit is generally formed by printing, etching, metal foil sticker, or the like. [0004] As such a loop antenna, there is known a structure in which a conducting wire is wound multiple times in a coil shape and attached to a substrate (for example, refer to Patent Document 1). [0005] In recen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q7/00H01Q1/24G06K19/067G06K19/07
Inventor 大川裕之田中启一
Owner SUMITOMO ELECTRIC IND LTD