KR20190011094A - Ultrafine conductive fiber RFID tag antenna - Google Patents

Abstract

The present invention provides an ultrafine conductive fiber radio frequency identification (RFID) tag antenna which can be easily inserted or attached to various types of things due to napping processing treatment. The ultrafine conductive fiber RFID tag antenna comprises: an RFID antenna pattern formed to allow the fur to be uniformly arrayed or be expressed by a predetermined pattern in forming a fur by allowing a part of fibers to protrude from a surface of conductive yarn; and an RFID tag chip arranged between the conductive yarns of the RFID antenna pattern. The RFID antenna pattern has: a left antenna pattern wherein one-ends of two lines of the conductive yarn are attached to each other and arranged on the inside and the other ends are arranged on the outside at regular intervals so as to form the left antenna pattern; and a right antenna pattern which is arranged at a predetermined interval with the left antenna pattern wherein one-ends of two lines of the conductive yarn are attached to each other and arranged on the inside and the other ends are arranged on the outside at regular intervals so as to form the right antenna pattern.

Description

[0001] The present invention relates to an ultrafine conductive fiber RFID tag antenna,

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a fibrous RF ID tag antenna, and more particularly, to an ultrafine conductive fiber AR ID tag antenna subjected to a brushed process.

2. Description of the Related Art Radio frequency identification (RFID) is a technology for recognizing or recording information held by a tag using a radio frequency in a non-contact manner. The RFID tag recognizes and tracks tagged objects, animals, , And technology that can be managed.

RFID / USN technology attaches a very small electronic tag to objects to be managed and automatically extracts information of objects and surrounding environment information by using radio waves. In this way, all fields of our life, such as food, , Waste management, environmental management, logistics and distribution, and security. It is expected to dramatically improve the quality of life and bring about a revolution in business.

RFID technology can be applied to all industries and society. In the industrial field, it can be automatically transferred to the defective process on the process line, and the process management data can be obtained in real time and the necessary data such as the final worker and date can be stored and used for the A / S have.

Access control It can be used in all places requiring limited access control such as members' private places, apartments, public institutions, general companies, etc. Also, it can be used for confidential document management or expensive items such as luxury bags and expensive clothes. You can then manage the object in real time.

Such an RFID system has unique identification information and includes a tag (Tag or Transponder) attached to an object or an animal, and a reader (Reader or Interrogator) for reading or recording the identification information held by the tag. These RFID systems are developed into RFID / USN (Ubiquitous Sensor Network) technology by combining with sensors.

The RFID tag is composed of an antenna and an RFID IC chip and is used in various frequency bands such as low frequency (125 kHz, 135 kHz), high frequency (13.56 MHz), very high frequency (433 MHz, 860 to 960 MHz), microwave (2.45 GHz) And the reader transmits the electric magnetic field through the reader antenna to supply power to the passive tag and exchange the tag and the data.

Here, in most countries, considering interferences with wireless communications, the use of readers operating at different carrier frequencies to meet the needs of the country is required.

The microchip of the tag is located at the feeding point of the tag antenna and receives all the necessary energy from the reader's signal. The tag transmits the coded signal to the reader at the UHF frequency by electromagnetic backscattering send. That is, the tag sends back a part of the energy received from the reader. In the power applying method of the tag, the schottky rectifier circuit is used to convert microwave energy into direct current. In the case of the passive tag, And operates using the rectified DC voltage.

Most RFID tags use a dipole antenna made of copper or aluminum. However, since a general dipole antenna is designed with a reference of? / 2, the lower the frequency, the longer the antenna length becomes. Also, when the antenna size is designed as 148 ㅧ 1mm and VSWR 2.0 (-10dB), resonance occurs between 861MHz and 943MHz, and the frequency bandwidth is limited to 80 ~ 100MHz.

Generally, an RFID tag is composed of an IC chip and an antenna, and the IC chip includes an RF transmission / reception circuit, a control logic, and a memory, and transmits / receives radio frequency through an antenna.

The RFID tag reflects a signal of a very high frequency (UHF) band transmitted from a reader, modulates information including identification information in a reflected RF signal, and transmits the modulated signal to a reader.

The antenna used in the RFID tag has a dipole antenna shape printed on a film. That is, the characteristic of the antenna applied to the RFID tag is designed in the form of a radiation pattern of the dipole antenna.

In order to adopt such an RFID tag to a textile product such as clothing, a tag formed on a label is packaged with urethane or a specific material and attached to a textile product in the form of a nametec.

Therefore, such an RFID label tag requires a troublesome process of packaging an RFID tag, which increases the manufacturing time and increases manufacturing costs such as labor costs, resulting in an economical disadvantage.

In addition, since the RFID label tag can be easily separated from the product, the RFID label tag is separated from the product due to the carelessness of the operator, or the RFID label tag is deliberately removed from the product, thereby causing the product to become tagless

SUMMARY OF THE INVENTION The present invention has been proposed in order to solve the above-mentioned technical problems, and provides a super fine conductive fiber AL RFID tag antenna which can be easily inserted or attached to various types of objects by brushed processing.

Further, the present invention provides an ultrafine conductive fiber ID tag antenna capable of being attached to an article in various forms while the tag is flying in the air due to brushed processing.

According to an embodiment of the present invention, an RFID antenna pattern in which a portion of a fiber protrudes from a surface of a conductive yarn to form hairs, the hairs being formed so as to be regularly arranged or patterned; And an RFID tag chip disposed between the conductive yarns of the RFID antenna pattern, wherein one end of the conductive yarns of the two lines are attached to each other and arranged inside, and the other end is fixed A left antenna pattern disposed outside at an interval; And a right antenna pattern disposed at a predetermined distance from the left antenna pattern, wherein one end of the two lines of conductive yarns are attached to each other and disposed on the inside and the other ends are disposed on the outside with a predetermined gap therebetween A superfine conductive fiber ALF ID tag antenna is provided.

Also, the RFID antenna pattern may include the left antenna pattern in which one end of two lines of conductive yarns each having a length of 72 mm is attached to the inside and the other end is disposed outside at an interval of 25 mm; The right antenna pattern disposed at an interval of 2 mm from the left antenna pattern and having one end of two lines of conductive yarns each having a length of 72 mm disposed on the inner side and the other end disposed on the outer side with an interval of 25 mm; And the RFID tag chip disposed between the left antenna pattern and the inner gap of the right antenna pattern.

According to another embodiment of the present invention, there is provided an RFID antenna pattern in which a portion of a fiber protrudes from a surface of a conductive yarn to form hairs, the hairs being formed to be regularly arrayed or to be displayed in a predetermined pattern; And an RFID tag chip disposed between the conductive yarns of the RFID antenna pattern, wherein the RFID antenna pattern includes: a left antenna pattern in which one line of conductive yarns is arranged in a horizontal direction; A right antenna pattern disposed at a predetermined distance from the left antenna pattern and having one line of conductive yarns arranged in a horizontal direction; And a loop antenna pattern having one end of a semicircular conductive yarn attached to the conductive material of the left antenna pattern and the other end attached to a conductive material of the right antenna pattern to form a T-matching dipole antenna A superfine conductive fiber ALF ID tag antenna is provided.

The RFID antenna pattern may include a left antenna pattern in which a conductive yarn having a length of 98 mm is arranged in a horizontal direction; A right antenna pattern disposed at an interval of 2 mm from the left antenna pattern and having conductive wires having a length of 98 mm arranged in a horizontal direction; One end of a semicircular conductive yarn having a radius of 6 mm is attached to the conductive material of the left antenna pattern and the other end is attached to the conductive material of the right antenna pattern to form a T-matching dipole antenna; And the RFID tag chip disposed between the left antenna pattern and the inner gap of the right antenna pattern.

The ultrafine conductive fiber ID RFID tag antenna according to the embodiment of the present invention can be easily inserted or attached to various types of objects due to brushed processing.

In addition, the ultrafine conductive fiber ARF ID tag antenna can be attached to articles in various forms while the tag is flying in the air due to the brushed processing process.

The conductive brushed UHF tag has a thickness of 0.01mm which is 1/10 of the thickness of the hair, and it can be used as a smart dust tag that can be carried in the air because the area of contact with the air is increased due to the brushed process. In addition to the thin paper, the conductive fiber RFID tag can be inserted into the gift voucher, paper currency, leather, vinyl, confidential documents, expensive clothes, etc. without appearance.

That is, when the conductive fiber AL RFID tag antenna is brushed, the fiber becomes lighter, so that the dust tag can be blown away in the wind. The dust tag can detect the enemy's approach by causing the enemy to blow the tag in the direction of the wind and attach it to the clothes or body during the war.

It is also possible to attach the tag to the animal hair during the observation of the condition, thereby tracking the activity range and the like.

In addition, since the tag can fly into the air by wind, it can be used as a weather observation means such as wind direction and wind speed.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a kind of a conductive yarn that can be used in an ultrafine conductive fiber-like ARF ID tag antenna. FIG.
2 is a view showing the electrical properties of a conductive yarn;
Fig. 3 is a view showing a configuration of a superfine conductive fiber-based RF ID tag antenna according to the first embodiment; Fig.
3A is a diagram showing the reflection coefficient of the ultrafine conductive fiber-fired RF ID tag antenna according to the first embodiment.
4 is a view showing a configuration of an ultrafine conductive fiber-based ARF ID tag antenna according to a second embodiment;
FIG. 4A is a view showing the reflection coefficient of the ultrafine conductive fiber-based ARF ID tag antenna according to the second embodiment. FIG.
5 is a view showing a configuration of an ultrafine conductive fiber-based ARF ID tag antenna according to a third embodiment.
5A is a view showing a reflection coefficient of the ultrafine conductive fiber-fired RF ID tag antenna according to the third embodiment.
6 is a view showing impedance values of the ultrafine conductive fiber-based ARF tag antenna according to frequency bands.
FIG. 7 is a photograph of an ultrafine conductive fiber ARF ID tag antenna. FIG.
Figs. 8 to 8B are diagrams showing recognition distances of the ultrafine conductive fiber-fired RF ID tag antenna according to the directions. Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, in order to facilitate a person skilled in the art to easily carry out the technical idea of the present invention.

Fig. 1 is a view showing the kind of a conductive yarn that can be used for an ultrafine conductive fiber ARF ID tag antenna.

Referring to FIG. 1, a super fine tag is developed using a flexible conductive fiber-conductive yarn having a thickness of about 1/10 of the hair. That is, by using the very thin characteristics of the conductive fiber-conductive yarn, it is possible to develop a tag that can be inserted into a thin paper.

It is possible to tag and attach important documents and money to various types of objects having flexibility by using conductive yarns so that information security and prevention of counterfeiting can be expected.

In this embodiment, fibers are taken from a second non-twisted conductive yarn which is easy to take fibers out of the conductive yarns of Fig. 1. - Brushed with fiber -

The conductive yarn refers to a conductive or electrically conductive yarn and is also referred to as an electro-thread or a conductive yarn. The conductive yarn is usually a copper or nickel metal yarn having a diameter of 0.01 mm to 0.08 mm, an insulating fiber surrounding the metal fiber, or a thread coated with a conductive metal component such as copper nail.

In this embodiment, a UHF RFID tag is designed in a dip shape using a conductive fiber-conductive yarn having a diameter of 0.01 mm, which is 1/10 of the thickness of a hair. That is, the conductive yarn is formed in the form of a one filament fiber in which a conductive filament is formed in a cross section of the fiber, and has a diameter of 0.01 mm in a state without brushed treatment. Basically, the electrical properties of the conductive yarn are not changed by the brushed process, and the protruding hairs increase the contact surface with the air.

2 is a diagram showing electrical properties of a conductive yarn.

Referring to FIG. 2, the electrical characteristics of the conductive fiber-conductive yarn having a length of 150 mm and a diameter of 0.01 mm (1/10 of the thickness of hair) were measured.

The diameter, resistance, and conductivity of the actual conductive fiber were measured using CST, which is one of the simulation programs, and the value was input to the CST and then simulated with various conditions such as the length and the number of positions.

The conductive yarn is too small to be identified in FIG. 2, but the resistance value of the conductive fiber of 150 mm is 1130 ohm and the diameter is 0.01 mm. When the length and the cross-sectional area are known, the conductivity can be calculated using the following equation. The conductivity (K) is 1.6901E6 S / m.

≪ Equation &

Fig. 3 is a diagram showing a configuration of the ultrafine conductive fiber-fired RF ID tag antenna according to the first embodiment.

Referring to FIG. 3, the ultrafine conductive fiber ID RFID tag antenna includes RFID antenna patterns 101 and 102 and an RFID tag chip 200.

The RFID antenna patterns 101 and 102 are formed such that a part of the fibers protrude from the surface of a conductive yarn to form hairs and the hairs are regularly arranged or displayed in a predetermined pattern. The shape of the hair is shown in Figures 4 and 5 -

The RFID tag chip 200 is disposed between the conductive yarns of the RFID antenna patterns 101 and 102 to exchange energy and data with the RFID antenna patterns 101 and 102.

More specifically, the RFID tag pattern antenna 101 and the RFID tag pattern antenna 102 are fabricated in such a manner that a paper having a dielectric constant of 2.3 on an A4 size paper sheet is placed on the bottom and 83 mm The conductive fiber was arranged and designed as a dipole antenna.

That is, the ultrafine conductive fiber ID tag antenna of the present invention,

A one-side antenna pattern 101 in which a conductive yarn having a length of 83 mm is arranged in one direction,

A second antenna pattern 102 disposed at an interval of 2 mm from the one antenna pattern and having a conductive yarn having a length of 83 mm arranged in the other direction,

And an RFID tag chip (200) disposed between the one side antenna pattern (101) and the inner side gap of the other side antenna pattern (102).

3A is a diagram showing the reflection coefficient of the ultrafine conductive fiber-fired RF ID tag antenna according to the first embodiment.

Referring to FIG. 3A, the conductivity values of the conductive fibers are input to the CST simulation program to design the tag.

The impedance of the RFID tag chip 200 and the impedance of the RFID antenna patterns 101 and 102 should be conjugated with each other on a Smith chart.

The impedance of the RFID tag chip (Gen2 Higgs Strap, 200) used in the fabrication of the ultrafine conductive fiber RFID tag is about 11.7-j132 at 920 MHz and the impedance of the tag antenna 101, 102 is about 104.85 + j101 at 920 MHz .4. In the graph of FIG. 3A, it can be seen that the value at the frequency 920 MHz is about -1.9 dB. For reference, the reflection coefficient (S11 in dB) is about -1.9.

That is, the one-line tag had resonance at 920 MHz, but the reflection coefficient of the tag antenna was only -1.9 dB. The reason is that the resistance value is 103, the chip resistance value is more than 11.7, and the reflection coefficient is only -1.9.

4 is a view showing a configuration of a super fine grain conductive fiber ID RFID tag antenna according to the second embodiment.

Referring to FIG. 4, the ultrafine conductive fiber ID RFID tag antenna includes RFID antenna patterns 103 and 104 and an RFID tag chip 200.

The RFID antenna patterns 103 and 104 are formed such that the hairs 300 are regularly arranged or protruded in a predetermined pattern when the hairs 300 are formed by protruding part of the fibers from the surface of the conductive yarn.

Since the surface of the conductive yarn is made of fibrous material, it is brushed, that is, the surface of the fiber structure is scratched to form a puff or hair 300.

Here, the hairs 200 protruding from the surface of the fabric may be uniformly formed at regular intervals, or may be formed on a part thereof to display the same or a pattern of a desired shape.

The RFID tag chip 200 is disposed between the conductive yarns of the RFID antenna patterns 103 and 104 to exchange energy and data with the RFID antenna patterns 103 and 104.

In more detail, the RFID tag patterns 103 and 104 are formed by placing a paper having a dielectric constant of 2.3 on an A4 paper size on the bottom and placing conductive fibers on both sides thereof And designed as a dipole antenna.

That is, the ultrafine conductive fiber ID tag antenna of the present invention,

A left antenna pattern 103 having one end of two lines of conductive yarns each having a length of 72 mm and disposed on the inside and the other end arranged on the outside with a 25 mm interval,

One end of two lines of conductive yarns each having a length of 72 mm, which are arranged at a distance of 2 mm from the left antenna pattern 103, are arranged on the inner side and the other end is arranged on the outer side with a 25- (104)

And an RFID tag chip (200) disposed between the left antenna pattern (103) and the inner gap of the right antenna pattern (104).

4A is a diagram showing the reflection coefficient of the ultrafine conductive fiber-based ARF ID tag antenna according to the second embodiment.

Referring to FIG. 4A, the ultrafine conductive fiber ID RFID tag antenna according to the second embodiment is designed in parallel to reduce the resistance value of the RFID antenna patterns 103 and 104 to increase the efficiency.

The impedance of the RFID tag chip 200 and the impedance of the RFID antenna patterns 103 and 104 should be conjugated with each other on a Smith chart.

The impedance of the RFID tag chip (Gen2 Higgs Strap, 200) used in the fabrication of the ultrafine conductive fiber RFID tag is about 11.7-j132 at 920 MHz and the impedance of the tag antenna 103, 104 is about 90.4 + j123 at 920 MHz .5. In the graph of FIG. 4A, it is confirmed that the value at the frequency 920 MHz is about -2.25 dB. That is, the efficiency is improved by about -0.35 dB compared to the first embodiment. For reference, the reflection coefficient (S11 in dB) is about -2.2.

5 is a view showing a structure of a super fine grain conductive fiber AL RFID tag antenna according to the third embodiment

5, the ultrafine conductive fiber ID RFID tag antenna includes RFID antenna patterns 105, 106 and 107 and an RFID tag chip 200.

The RFID antenna patterns 105, 106, and 107 are formed such that a part of the fibers protrude from the surface of the conductive yarn to form the hairs 300, and the hairs 300 are regularly arranged or displayed in a predetermined pattern .

Since the surface of the conductive yarn is made of fibrous material, it is brushed, that is, the surface of the fiber structure is scratched to form a puff or hair 300.

Here, the hairs 300 protruding from the surface of the fabric may be uniformly formed at equal intervals, or may be formed on a part of the hairs 300 to express the same or a pattern of a desired shape.

The RFID tag chip 200 is disposed between the conductive yarns of the RFID antenna patterns 105, 106, and 107 to transmit and receive energy and data with the RFID antenna patterns 105, 106, and 107.

In more detail, the RFID tag patterns 105, 106, and 107 are formed by placing a paper having a dielectric constant of 2.3 on an A4 paper size on a floor, And designed as a dipole antenna.

That is, the ultrafine conductive fiber ID tag antenna of the present invention,

A left antenna pattern 105 in which a conductive yarn having a length of 98 mm is arranged in a horizontal direction,

A right antenna pattern 106 disposed at an interval of 2 mm from the left antenna pattern 105 and having a 98 mm length of conductive yarns arranged in a horizontal direction,

One end of a semi-circular conductive yarn with a radius of 6 mm is attached to the conductive material of the left antenna pattern 105 and the other end is attached to the conductive material of the right antenna pattern 106 to form a T- A pattern 107,

And an RFID tag chip (200) disposed between the left antenna pattern (105) and the inner gap of the right antenna pattern (106).

5A is a diagram showing the reflection coefficient of the ultrafine conductive fiber-based ARF ID tag antenna according to the third embodiment.

Referring to FIG. 5A, the ultrafine conductive fiber ID tag antenna according to the third embodiment of the present invention includes a T-matching (RFID) antenna pattern 105, 106, and 107, Thereby forming a dipole antenna.

The impedance of the RFID tag chip 200 and the impedances of the RFID antenna patterns 105, 106, and 107 must be conjugated with each other on a Smith chart.

The impedance of the RFID tag chip (Gen2 Higgs Strap, 200) used for fabricating the ultrafine conductive fiber RFID tag is about 11.7-j132 at 920 MHz. As a result of simulation, the impedance of the tag antenna 105, 106, + j131.5. In the graph of FIG. 5A, it can be seen that the value at the frequency 920 MHz is about -31 dB. That is, the efficiency is improved by about -28.75 dB compared to the second embodiment. For reference, the reflection coefficient (S11 in dB) is about -30.8.

Fig. 6 is a diagram showing impedance values for each frequency band of the ultrafine conductive fiber ARF ID tag antenna.

Referring to FIG. 6, there is shown a graph showing the impedance values of various types of ultrafine conductive fiber ID tags with different frequency bands.

The tag antenna impedance is about 90.45 + j122.34 in the 920MHz band when the ultra fine conductive fiber ID tag antenna according to the second embodiment is parallel two lines,

When the ultrafine conductive fiber ARF tag antenna according to the third embodiment is used, that is, the T-matching method, the tag antenna impedance is about 12.2 + j131.6 in the 920 MHz band.

This proves that better efficiency is obtained by using the parallel type or T-matching method than the one-line type antenna (the first embodiment).

Fig. 7 is an actual view of the ultrafine conductive fiber-type ARF ID tag antenna.

Referring to FIG. 7, an RFID tag chip (Gen2 Higgs Strap, 200) having a thickness of 0.15 mm is bonded using a silver paste, which is a conductive adhesive member, on a conductive yarn, and then placed on A4 paper . Here, the length of the conductive yarn is 83 mm in the left / right direction and has a diameter of 0.01 mm.

That is, a conductive yarn is adhered to an RFID tag chip (Gen2 Higgs Chip, 200) having a thickness of 0.15 mm by using silver paste, and then placed on A4 paper made of paper.

For reference, the RFID tag chip 200 includes an RF transmitting / receiving circuit, a control logic, and a memory, and is provided with a chip strap for contacting the RFID antenna pattern. The chip strap and the RFID antenna pattern may be attached through a conductive adhesive member, the conductive yarn may be stuck to the chip strap, or may be attached using a separate adhesive layer.

FIGS. 8 to 8B are diagrams showing distances per recognition direction of the ultrafine conductive fiber ID tag antenna.

Referring to FIG. 8, the ultrafine conductive fiber ID tag antenna was rotated at 30 degrees in theta (θ) direction and 30 degrees in the Phi (φ) direction. - The left figure is assumed to be front, Spherical coordinate system -

Referring to FIG. 8A, the recognition distance of the ultra-fine conductive fiber ARF ID tag antenna will be described.

All types of ultrafine conductive fiber ALF ID tag antennas have a maximum recognition distance when they are in the front state corresponding to 0 degrees. The maximum recognition distance is 79 cm, and the minimum recognition distance is 59 cm, which corresponds to 90 degrees.

The theoretical maximum recognition distance

Can be obtained by using the following equation.

Referring to FIG. 8B, as far as the recognition distance of the ultrafine conductive fiber AR tag antenna is concerned,

All types of ultrafine conductive fiber ALF ID tag antennas have a maximum recognition distance when they are in the front state corresponding to 0 degrees. In the T-Matching method (the third embodiment), the maximum recognition distance is 79 cm, and the minimum recognition distance is 7 cm, which corresponds to 270 degrees.

For reference, as another embodiment of the present invention,

Ultra-fine conductive fiber ALF ID tag antenna

An RFID antenna pattern in which a portion of a fiber protrudes from a surface of a conductive yarn to form hairs, the hairs being formed so as to be regularly arranged or patterned; And an RFID tag chip disposed between the conductive yarns of the RFID antenna pattern,

The RFID antenna pattern includes a left antenna pattern in which one end of three lines of conductive yarns are attached to each other and disposed on the inside and the other ends are disposed on the outside with a predetermined gap therebetween; And a right antenna pattern disposed at a predetermined distance from the left antenna pattern and having one end of three lines of conductive yarns attached to each other and disposed at the outside at regular intervals Lt; / RTI >

At this time, the RFID antenna pattern has the left antenna pattern in which one end of three lines of conductive yarns each having a length of 72 mm is attached to the inner side and the other ends are disposed on the outer side at intervals of 5 mm each; The left antenna pattern is disposed at an interval of 2 mm, and one end of three lines of conductive yarns each having a length of 72 mm is attached to the inner side, ; And the RFID tag chip disposed between the left antenna pattern and the inner gap of the right antenna pattern.

The ultrafine conductive fiber ID RFID tag antenna according to the embodiment of the present invention can be easily inserted or attached to various types of objects due to brushed processing.

In addition, the ultrafine conductive fiber ARF ID tag antenna can be attached to articles in various forms while the tag is flying in the air due to the brushed processing process.

The conductive brushed UHF tag has a thickness of 0.01mm which is 1/10 of the thickness of the hair, and it can be used as a smart dust tag that can be carried in the air because the area of contact with the air is increased due to the brushed process. In addition to the thin paper, the conductive fiber RFID tag can be inserted into the gift voucher, paper currency, leather, vinyl, confidential documents, expensive clothes, etc. without appearance.

That is, when the conductive fiber AL RFID tag antenna is brushed, the fiber becomes lighter, so that the dust tag can be blown away in the wind. The dust tag can detect the enemy's approach by causing the enemy to blow the tag in the direction of the wind and attach it to the clothes or body during the war.

It is also possible to attach the tag to the animal hair during the observation of the condition, thereby tracking the activity range and the like.

In addition, since the tag can fly into the air by wind, it can be used as a weather observation means such as wind direction and wind speed.

The present invention enables the RFID tag to be attached and inserted into various objects using the thin and flexible characteristics of the conductive yarn, so that the RFID technology is used in many fields, so that the logistics management and information collection can be convenient. In addition, tags can be inserted into uniforms or school uniforms, which can be used in position tracking and access control systems. In addition, the ultra-fine conductive fiber AL RFID tag antenna will also function as information security and anti-counterfeiting by tagging important documents and money.

Ultrafine conductive fiber ARF ID tag antennas can be used not only in thin paper, but also in gift certificates, paper currency, leather, and vinyl.

As described above, the thickness of the tag chip is 0.15 mm. Generally, the thickness of the leather is thicker than this. Therefore, by inserting it into leather and applying and using it, you will be able to check and manage the quantity and information of things.

Thus, those skilled in the art will appreciate that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the embodiments described above are to be considered in all respects only as illustrative and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

101, 102, 103, 104, 105, 106, 107: RFID antenna pattern
200: RFID tag chip
300: Hair

Claims (4)

An RFID antenna pattern in which a portion of a fiber protrudes from a surface of a conductive yarn to form hairs, the hairs being formed so as to be regularly arranged or patterned; And
And an RFID tag chip disposed between the conductive yarns of the RFID antenna pattern,
The RFID antenna pattern includes:
A left antenna pattern in which one ends of two lines of conductive yarns are attached to each other and disposed on the inner side and the other ends are arranged on the outer side at regular intervals; And
And a right antenna pattern disposed at a predetermined distance from the left antenna pattern, wherein one end of the two conductive lines is disposed on the inner side and the other end is disposed on the outer side at a predetermined interval The ultra-fine conductive fiber ALF ID tag antenna.
The method according to claim 1,
The RFID antenna pattern includes:
The left antenna pattern in which one end of two lines of conductive yarns each having a length of 72 mm is attached to the inner side and the other end is disposed outside at an interval of 25 mm;
The right antenna pattern disposed at an interval of 2 mm from the left antenna pattern and having one end of two lines of conductive yarns each having a length of 72 mm disposed on the inner side and the other end disposed on the outer side with an interval of 25 mm; And
And the RFID tag chip disposed between the left antenna pattern and the inner space of the right antenna pattern.
An RFID antenna pattern in which a portion of a fiber protrudes from a surface of a conductive yarn to form hairs, the hairs being formed so as to be regularly arranged or patterned; And
And an RFID tag chip disposed between the conductive yarns of the RFID antenna pattern,
The RFID antenna pattern includes:
A left antenna pattern in which one line of conductive yarns is arranged in a horizontal direction;
A right antenna pattern disposed at a predetermined distance from the left antenna pattern and having one line of conductive yarns arranged in a horizontal direction; And
And a loop antenna pattern having one end of a semicircular conductive yarn attached to the conductive material of the left antenna pattern and the other end attached to a conductive material of the right antenna pattern to form a T- Ultra-fine conductive fiber ALF ID tag antenna.
The method of claim 3,
The RFID antenna pattern includes:
The left antenna pattern in which a conductive yarn having a length of 98 mm is arranged in a horizontal direction;
A right antenna pattern disposed at an interval of 2 mm from the left antenna pattern and having conductive wires having a length of 98 mm arranged in a horizontal direction;
One end of a semicircular conductive yarn having a radius of 6 mm is attached to the conductive material of the left antenna pattern and the other end is attached to the conductive material of the right antenna pattern to form a T-matching dipole antenna; And
And the RFID tag chip disposed between the left antenna pattern and the inner space of the right antenna pattern.

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