KR20140062298A - Antenna element for tuning tag - Google Patents

Antenna element for tuning tag Download PDF

Info

Publication number
KR20140062298A
KR20140062298A KR1020120128812A KR20120128812A KR20140062298A KR 20140062298 A KR20140062298 A KR 20140062298A KR 1020120128812 A KR1020120128812 A KR 1020120128812A KR 20120128812 A KR20120128812 A KR 20120128812A KR 20140062298 A KR20140062298 A KR 20140062298A
Authority
KR
South Korea
Prior art keywords
antenna
tag
sub
main
main antenna
Prior art date
Application number
KR1020120128812A
Other languages
Korean (ko)
Inventor
전형준
Original Assignee
엘에스산전 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘에스산전 주식회사 filed Critical 엘에스산전 주식회사
Priority to KR1020120128812A priority Critical patent/KR20140062298A/en
Publication of KR20140062298A publication Critical patent/KR20140062298A/en

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
    • H01Q1/2225—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
    • H01Q11/08—Helical antennas
    • H01Q11/083—Tapered helical aerials, e.g. conical spiral aerials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Details Of Aerials (AREA)

Abstract

The present invention relates to an antenna element for tag tuning, comprising: a mounting member attached on a tag including a driving chip and a main antenna extending from the driving chip; and an antenna element formed on the mounting member and electrically coupled to the main antenna And a sub-antenna. According to the present invention, the tag can be easily tuned according to the purpose of use by using the antenna element.

Description

ANTENNA ELEMENT FOR TUNING TAG < RTI ID = 0.0 >

The present invention relates to an antenna element, and more particularly to an antenna element for tag tuning.

In general, RFID (Radio Frequency Identification) technology is a system capable of providing various services such as positioning, remote processing, management, and information exchange by recognizing information of a relevant object and surrounding environment information through a tag attached to a specific object to be. Through this, RFID technology is used in logistics management system, user authentication system, electronic money system, traffic system and so on. For example, in the logistics management system, RFID technology is used for sorting and inventory management of freight. In the user authentication system, RFID technology is used for entrance management.

However, such tags must be implemented differently according to the frequency band used. That is, a tag used in a low frequency band must be implemented in a size or structure different from a tag used in a high frequency band. In other words, there is a problem that the tag must be implemented in a size or structure corresponding to the purpose of use. As a result, a high cost can be required in manufacturing the tag.

Accordingly, it is an object of the present invention to provide an antenna element that can be easily used according to the purpose of use. That is, the present invention is for tuning the tag according to various purposes even if the tag is manufactured in a predetermined size or structure. The present invention is intended to reduce the manufacturing cost of the tag.

According to another aspect of the present invention, there is provided an antenna element for tag tuning, comprising: a mounting member mounted on a tag including a driving chip and a main antenna extending from the driving chip; And a sub-antenna electrically coupled to the main antenna.

At this time, in the antenna element for tag tuning according to the present invention, the sub antenna is coupled to the main antenna by an electromagnetic field formed as voltage is applied from the driving chip in the main antenna.

In the antenna device for tag tuning according to the present invention, the sub-antenna operates integrally with the main antenna under the control of the driving chip.

In the antenna element for tuning a tag according to the present invention, the sub-antenna extends in the same direction as the direction in which the main antenna extends from the drive chip or in a direction perpendicular to a direction in which the main antenna extends.

In addition, in the antenna element for tag tuning according to the present invention, the sub-antenna is formed in a structure including at least one of a meander type, a spiral type, a step type, and a loop type.

The antenna element for tag tuning according to the present invention allows the tag to be easily used according to the purpose of use. That is, when the tag is to be used in a high frequency band, the tag can be used without an antenna element. If the tag is to be used in a low frequency band, an antenna element may be attached to the tag. Here, depending on the size and shape of the antenna element, the tag can be used in various lower frequency bands. In other words, using the antenna element, the tag can be easily tuned according to the purpose of use.

Thus, even if the tag is manufactured in a single size and structure, it can be used for various purposes. Therefore, it is not necessary to manufacture the tag differently according to each purpose of use, so that the manufacturing cost of the tag can be reduced.

1 is a perspective view showing an antenna element for tag tuning according to an embodiment of the present invention,
2 is a plan view showing an antenna element for tag tuning according to an embodiment of the present invention,
FIG. 3 is a graph for explaining operation characteristics of an antenna element for tag tuning according to an embodiment of the present invention, and FIG.
4 is a plan view showing an antenna element for tag tuning according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the same components are denoted by the same reference symbols as possible in the accompanying drawings. Further, the detailed description of known functions and configurations that may obscure the gist of the present invention will be omitted.

1 is a perspective view illustrating an antenna element for tag tuning according to an embodiment of the present invention. And FIG. 2 is a plan view showing an antenna element for tag tuning according to an embodiment of the present invention. 3 is a graph illustrating an operation characteristic of an antenna element for tag tuning according to an embodiment of the present invention.

1 and 2, an antenna element 130 of the present embodiment is attached to a tag 120 on an object 110. [ That is, a tag 120 is attached on the object 110, and the antenna element 130 is attached on the tag 120. Thereby, on the object 110, the antenna element 130 is laminated on the tag 120. At this time, the tag 120 may be attached on the object 110, and then the antenna element 130 may be attached on the tag 120. Or the tag 120 and the antenna element 130 may be attached on the object 110 after the antenna element 130 is attached on the tag 120. [

The object 110 represents everything that is managed according to the RFID technology. At this time, the object 110 includes not only objects such as office equipment, daily necessities, traffic cards, but also creatures.

The tag 120 stores tag information. Here, the tag information includes information of the object 110, surrounding environment information, and the like. And the tag 120 communicates with a reader (not shown). At this time, the tag 120 transmits the tag information to the reader. Here, the tag 120 can actively transmit tag information. Alternatively, the tag 120 may manually transmit the tag information according to the request of the reader. Also, the tag 120 can be driven by the power supplied from the reader. Alternatively, the tag 120 may include a battery (not shown), and may be driven by the battery.

These tags 120 are mounted on the object 110. At this time, the tag 120 includes a base member 121, a driving chip 123, and a main antenna 125.

The base member 121 supports the driving chip 123 and the main antenna 125 in the tag 120. And the base member 121 is bonded onto the object 110. [ That is, the base member 121 is brought into close contact with the object 110.

At this time, the base member 121 may be formed in a film type. And the base member 121 is formed of a dielectric. At this time, the base member 121 may be formed of plastic or paper. Here, the base member 121 may be formed of thermoplastic plastic. For example, the base member 121 may be made of at least one of polyethylene terephthalate (PET), polyimide (PI), polyethylene naphthalate (PEN), and polyvinyl chloride (PVC) It can be formed in any one of them. Preferably, the base member 121 may be formed of polyethylene terephthalate (PET).

The driving chip 123 controls the overall operation of the tag 120. At this time, the driving chip 123 includes a communication circuit, a memory, and a control circuit. The communication circuit transmits and receives data wirelessly. The memory stores tag information. The control circuit is connected to the communication circuit, the memory and the main antenna 125, and controls the communication circuit, the memory and the main antenna 125, respectively. At this time, the control circuit applies power to the main antenna 125. Here, the control circuit is driven by the power supplied from the reader and can operate the main antenna 125. Alternatively, the control circuit may be driven by the power supply of the battery and may operate the main antenna 125. [

The driving chip 123 is mounted on the base member 121. At this time, the driving chip 123 may be disposed at the center of the base member 121 or at the outer portion of the base member 121.

The main antenna 125 performs wireless connection in the tag 120. Namely, the main antenna 125 operates under the control of the driving chip 123 in the resonance frequency band. At this time, the main antenna 125 operates in the resonance frequency band as power is supplied from the driving chip 123. Here, as power is applied from the driving chip 123, current flows through the main antenna 125, and an electromagnetic field is formed in the main antenna 125.

At this time, the resonance frequency band is determined according to the size and shape of the main antenna 125. That is, electrical characteristics such as main inductance and main capacitance are formed according to the size and shape of the main antenna 125, and the resonance frequency band is determined corresponding to the electrical characteristics. For example, a main inductance may be formed according to the length and width of the main antenna 125, and a main capacitance may be formed according to a distance according to a point position in the main antenna 125.

The main antenna 125 is mounted on the base member 121. At this time, the main antenna 125 may be formed in a patch type, and then attached to the base member 121. Or the main antenna 125 may be formed as it is drawn on the base member 121 with the conductive ink. Or the main antenna 125 may be formed by being patterned on the base member 121.

The main antenna 125 is connected to the driving chip 123. That is, the main antenna 125 extends from the driving chip 123. In this case, the main antenna 125 is an example of a meander type, but the present invention is not limited thereto. That is, the main antenna 125 may be formed not only in the meander type, but also in a structure including at least one of a spiral type, a step type, and a loop type.

The main antenna 125 is formed of a conductive material. At this time, the main antenna 125 is formed of a metal material. The main antenna 125 may include at least one of Ag, Pd, Pt, Cu, Au, and Ni.

An antenna element 130 is provided for tuning the tag 120. That is, the antenna element 130 supports the operation of the tag 120. At this time, the antenna element 130 supports the wireless communication function of the tag 120. That is, the antenna element 130, together with the tag 120, communicates with the reader. Here, the antenna element 130 operates under the control of the tag 120.

This antenna element 130 is attached on the tag 120. And the antenna element 130 is electrically coupled to the tag 120. At this time, the antenna element 130 includes a mounting member 131 and a sub-antenna 133.

The mounting member 131 supports the sub antenna 133 in the antenna element 130. And the mounting member 131 is attached on the tag 120. At this time, the mounting member 131 may cover at least a part of the tag 120. That is, the mounting member 131 may cover the tag 120 as a whole, and may cover the tag 120 partially. Here, the mounting member 131 can be brought into close contact with the object 110 as well as the tag 120. The mounting member 131 is disposed on the main antenna 133.

At this time, the mounting member 131 may be formed in a film type. The mounting member 131 is formed of a dielectric. Here, the mounting member 131 may be formed of the same material as the base member 121, or may be formed of a material different from the base member 121. At this time, the mounting member 131 may be formed of plastic or paper. Here, the mounting member 131 may be formed of thermoplastic plastic. For example, the mounting member 131 may be formed of at least one of polyethylene terephthalate (PET), polyimide (PI), polyethylene naphthalate (PEN), and polyvinyl chloride (PVC). Preferably, the mounting member 131 may be formed of polyethylene terephthalate (PET).

The sub antenna 133 performs wireless connection at the antenna element 130. Namely, the sub antenna 133 operates under the control of the driving chip 123 in the resonance frequency band. At this time, the sub antenna 133 is electrically coupled to the main antenna 125. Power is applied to the sub antenna 133 from the main antenna 125. The sub antenna 133 operates in the resonance frequency band integrally with the main antenna 125.

At this time, the sub antenna 133 is electrically coupled to the main antenna 125. Here, as the electromagnetic field is formed in the main antenna 125, the sub antenna 133 is excited by the main antenna 125. In other words, the sub-antenna 133 is coupled to the main antenna 125 via an electromagnetic field. That is, as the sub antenna 133 is coupled to the main antenna 125, power is applied from the main antenna 125 to the sub antenna 133. The sub-antenna 133 adjusts the resonance frequency band of the main antenna 125. At this time, the sub antenna 133 is coupled to the main antenna 125 to extend the electrical length of the main antenna 125. Here, the electrical length of the main antenna 125 is extended as much as the size and shape of the sub antenna 133.

Here, the resonance frequency band is adjusted in accordance with the size and shape of the sub-antenna 133. That is, electrical characteristics such as sub inductance and sub-capacitance are formed according to the size and shape of the sub-antenna 133, and the resonance frequency band is adjusted corresponding to the electrical characteristics. For example, a sub-inductance may be formed according to the length and width of the sub-antenna 133, and a sub-capacitance may be formed according to an interval according to the point position in the sub-

The sub-antenna 133 is mounted on the mounting member 131. At this time, the sub-antenna 133 may be formed as a patch type and then attached to the mounting member 131. Or the sub-antenna 133 may be formed as it is drawn on the mounting member 131 with the conductive ink. Or the sub-antenna 133 may be formed as the mounting member 131 is patterned. The sub-antenna 133 is superimposed on the main antenna 125 via the mounting member 131. Namely, the sub antenna 133 is superimposed on the main antenna 125 in a direction perpendicular to the plane on which the main antenna 125 is disposed.

And the sub antenna 133 is electrically coupled to the main antenna 125. [ The sub antenna 133 is electrically coupled to the main antenna 125 below the mounting member 131 at the top of the mounting member 131. [ And the sub antenna 133 extends from the main antenna 125. [ At this time, the sub antenna 133 may extend in the same direction as the direction in which the main antenna 125 extends. At this time, the example in which the sub-antenna 133 is formed in the meander type is described, but the present invention is not limited thereto. That is, the sub-antenna 133 may be formed not only in the meander type, but also in a structure including at least one of a spiral type, a step type, and a loop type.

The sub-antenna 133 is formed of a conductive material. At this time, the sub-antenna 133 is formed of a metal material. Here, the sub-antenna 133 may include at least one of silver (Ag), palladium (Pd), platinum (Pt), copper (Gu), gold (Au), and nickel (Ni).

According to this embodiment, depending on whether or not the antenna element 130 is attached on the tag 120, the resonance frequency band is determined differently as shown in Fig. That is, when the antenna element 130 is not attached on the tag 120, the tag 120 resonates in a relatively high frequency band. At this time, the resonance frequency band is determined according to the size and shape of the main antenna 125 in the tag 120. When the antenna element 130 is attached to the tag 120, the tag 120 resonates with the antenna element 130 in a relatively low frequency band. At this time, the resonance frequency band is determined by the size and shape of the main antenna 125 in the tag 120 and the size and shape of the sub antenna 133 in the antenna element 130.

4 is a plan view showing an antenna element for tag tuning according to another embodiment of the present invention.

4, an antenna element 230 of the present embodiment is attached to a tag 220 on an object 210. [ That is, a tag 220 is attached on the object 210, and the antenna element 230 is attached on the tag 220. Thereby, on the object 210, the antenna element 230 is laminated on the tag 220. At this time, the tag 220 may be attached on the object 210, and then the antenna element 230 may be attached on the tag 220. Or the tag 220 and the antenna element 230 may be attached on the object 210 after the antenna element 230 is attached on the tag 220. [

The tag 220 includes a base member 221, a driving chip 223, and a main antenna 225. The antenna element 230 also includes a mounting member 231 and a sub-antenna 233. [ Here, the respective constitutions of the tag 220 and the antenna element 230 are similar to the corresponding configurations in the above-described embodiment, and thus the detailed description thereof will be omitted.

However, in this embodiment, the sub-antenna 233 is mounted on the mounting member 231. [ The sub antenna 233 is electrically coupled to the main antenna 225 via the mounting member 231. [ The sub antenna 233 is electrically coupled to the main antenna 225 under the mounting member 231 at the top of the mounting member 231. [ And the sub antenna 233 extends from the main antenna 225. At this time, the sub antenna 233 may extend in a direction different from the direction in which the main antenna 225 extends. For example, the sub antenna 233 may extend in a direction perpendicular to the direction in which the main antenna 225 extends.

According to the present invention, the resonance frequency bands are determined differently depending on whether or not the antenna elements 130 and 230 are attached on the tags 120 and 220. That is, when the antenna elements 130 and 230 are not attached to the tags 120 and 220, the tags 120 and 220 resonate in a relatively high frequency band. At this time, the resonance frequency band is determined according to the size and shape of the main antennas 125 and 225 in the tags 120 and 220. When the antenna elements 130 and 230 are attached to the tags 120 and 220, the tags 120 and 220 resonate with the antenna elements 130 and 230 in a relatively low frequency band. At this time, the resonance frequency band is determined according to the size and shape of the main antennas 125 and 225 in the tags 120 and 220 and the size and shape of the sub antennas 133 and 233 in the antenna elements 130 and 230 .

Therefore, the tags 120 and 220 can be easily used according to the purpose of use by using the antenna elements 130 and 230. That is, when the tags 120 and 220 are to be used in a high frequency band, the tags 120 and 220 can be used without the antenna elements 130 and 230. When the tags 120 and 220 are to be used in a low frequency band, the antenna elements 130 and 230 may be attached to the tags 120 and 220, respectively. Here, the tags 120 and 220 can be used in various lower frequency bands according to the size and shape of the antenna elements 130 and 230. In other words, by using the antenna elements 130 and 230, the tags 120 and 220 can be easily tuned according to the purpose of use.

Accordingly, although the tags 120 and 220 are manufactured in a single size and structure, they can be used for various purposes. Therefore, the manufacturing cost of the tags 120 and 220 can be reduced because the tags 120 and 220 do not have to be manufactured differently according to the purpose of use.

It should be noted that the embodiments of the present invention disclosed in the present specification and drawings are only illustrative of the present invention in order to facilitate the understanding of the present invention and are not intended to limit the scope of the present invention. That is, it will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention are possible.

110, 210: object
120, 220: Tag
121, 221: Base member
123, 223: driving chip
125, 225: main antenna
130, 230: Antenna element
131, 231: a mounting member
133, 233: Sub-

Claims (5)

A mounting member attached to a tag including a driving chip and a main antenna extending from the driving chip;
And a sub-antenna formed on the mounting member and electrically coupled to the main antenna. The antenna of claim 1, wherein the sub-
Wherein the main antenna is coupled to the main antenna by an electromagnetic field formed as voltage is applied from the driving chip to the main antenna. The antenna of claim 1, wherein the sub-
Wherein the antenna chip is integrated with the main antenna under the control of the driving chip. The antenna of claim 1, wherein the sub-
Wherein the main antenna extends in the same direction as the direction in which the main antenna extends, or in a direction perpendicular to a direction in which the main antenna extends. The antenna of claim 1, wherein the sub-
Wherein the antenna is formed in a structure including at least one of a meander type, a spiral type, a step type, and a loop type.
KR1020120128812A 2012-11-14 2012-11-14 Antenna element for tuning tag KR20140062298A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120128812A KR20140062298A (en) 2012-11-14 2012-11-14 Antenna element for tuning tag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120128812A KR20140062298A (en) 2012-11-14 2012-11-14 Antenna element for tuning tag

Publications (1)

Publication Number Publication Date
KR20140062298A true KR20140062298A (en) 2014-05-23

Family

ID=50890606

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020120128812A KR20140062298A (en) 2012-11-14 2012-11-14 Antenna element for tuning tag

Country Status (1)

Country Link
KR (1) KR20140062298A (en)

Similar Documents

Publication Publication Date Title
JP6464468B2 (en) RF tag antenna, manufacturing method thereof, and RF tag
TWI271000B (en) Antenna and RFID tag mounting the same
KR101012528B1 (en) Rfid tag
EP1653396B1 (en) RFID tag
JP5268121B2 (en) RFID antenna system and method
JP5549787B2 (en) Antenna device and communication terminal device
US8757502B2 (en) Wireless communication device
KR101986376B1 (en) Radio frequency identification tag
KR101246576B1 (en) A NFC antenna module
JP6075511B2 (en) ANTENNA DEVICE AND ELECTRONIC DEVICE
US20110279340A1 (en) Antenna and wireless ic device
CN103688409A (en) Antenna and wireless tag
US7667658B2 (en) Antenna and RFID tag with same mounted
US20190138876A1 (en) Ic tag and method of manufacturing ic tag
US8228236B2 (en) Inverted F antenna with coplanar feed and RFID device having same
JP6663015B2 (en) Radio frequency device with tunable LC circuit with electrical and / or electronic module
CN101855645A (en) A radio frequency transponder and radio frequency identification system
JP5895960B2 (en) ANTENNA DEVICE AND PORTABLE ELECTRONIC DEVICE
CN103814478B (en) Antenna and wireless identification tag
KR20140062298A (en) Antenna element for tuning tag
KR100627163B1 (en) Eyelet for a radio frequency identification
KR20140062299A (en) Tag having tunable antenna element
CN114730364A (en) RFID tag
JP5184986B2 (en) ANTENNA DEVICE AND RADIO DEVICE
JP6518904B1 (en) Wireless communication terminal

Legal Events

Date Code Title Description
WITN Withdrawal due to no request for examination