JP2003249813A - Tag for rfid with loop antenna - Google Patents

Tag for rfid with loop antenna

Info

Publication number
JP2003249813A
JP2003249813A JP2002047282A JP2002047282A JP2003249813A JP 2003249813 A JP2003249813 A JP 2003249813A JP 2002047282 A JP2002047282 A JP 2002047282A JP 2002047282 A JP2002047282 A JP 2002047282A JP 2003249813 A JP2003249813 A JP 2003249813A
Authority
JP
Japan
Prior art keywords
loop antenna
tag
rfid tag
rfid
completed product
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP2002047282A
Other languages
Japanese (ja)
Inventor
Nobuo Furuya
信夫 古屋
Etsuo Koyama
悦雄 小山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TECDIA Co Ltd
Original Assignee
TECDIA Co Ltd
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 TECDIA Co Ltd filed Critical TECDIA Co Ltd
Priority to JP2002047282A priority Critical patent/JP2003249813A/en
Publication of JP2003249813A publication Critical patent/JP2003249813A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10158—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves methods and means used by the interrogation device for reliably powering the wireless record carriers using an electromagnetic interrogation field
    • G06K7/10178—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves methods and means used by the interrogation device for reliably powering the wireless record carriers using an electromagnetic interrogation field including auxiliary means for focusing, repeating or boosting the electromagnetic interrogation field

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tag for an RFID (radio frequency identification) with a loop antenna equipped with a size larger than 10 cm squared, which cannot be handled in a semiconductor assembling process. <P>SOLUTION: The tag mounts a completed product of a tag for RFID 31 with substantially 5 cm, produced separately on a completed product of a loop antenna with a side larger than 10 cm and positioned at a predetermined point on a substrate 21 and is fixed through bonding and the like. Rather than a coil 22 and the completed product of tag 31 being connected physically, it is connected electrically by means of electromagnetic induction. The completed product of tag 31, with a size larger than or equal to 1 cm squared and smaller than or equal to 7 cm squared can be produced through the semiconductor assembling process. <P>COPYRIGHT: (C)2003,JPO

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】本発明は、ループアンテナ付
きＲＦＩＤ（Radio Frequency Identification）用タ
グに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an RFID (Radio Frequency Identification) tag with a loop antenna.

【０００２】[0002]

【従来の技術】従来、非接触型ＲＦＩＤ（Radio Frequ
ency Identification）用タグは、図３に示すように、
基板１に搭載されたＲＦＩＤ用ＩＣチップ２と、このＩ
Ｃチップ２に接続され基板上にコイル状にパターン形成
されたループアンテナ３からなる。このような従来の非
接触型ＲＦＩＤ用タグの一辺は５ｃｍ程度であり、大き
くてもクレジットカードサイズたとえば５．４ｃｍ×
８．５ｃｍ程度である。2. Description of the Related Art Conventionally, non-contact type RFID (Radio Frequency
As shown in FIG. 3, the tag for ency identification)
The RFID IC chip 2 mounted on the substrate 1 and the I
The loop antenna 3 is connected to the C chip 2 and has a coiled pattern formed on the substrate. One side of such a conventional non-contact type RFID tag is about 5 cm, and even if it is large, it is a credit card size, for example, 5.4 cm ×
It is about 8.5 cm.

【０００３】従って、たとえば図３に示すように、従来
の非接触型ＲＦＩＤ用タグは、ＩＣチップを組み立てる
半導体製造工程を利用して基板１上に搭載されたＲＦＩ
Ｄ用ＩＣチップ２とループアンテナ３が、基板裏面の接
続部４において、スルーホール（貫通穴の内壁をメッキ
したもの）５、５’によって接続されている。Therefore, for example, as shown in FIG. 3, the conventional non-contact type RFID tag is mounted on the substrate 1 by utilizing the semiconductor manufacturing process of assembling the IC chip.
The D IC chip 2 and the loop antenna 3 are connected to each other by through holes (the inner wall of the through hole is plated) 5 and 5'in the connection portion 4 on the back surface of the substrate.

【０００４】[0004]

【発明が解決しようとする課題】しかし、半導体組立工
程で扱うことができる部品の寸法は、７ｃｍ角程度以下
であり、特に、１０ｃｍ角程度以上の部品を扱うことは
困難である。そこで、本発明は、半導体組立工程で扱う
ことができない１０ｃｍ角以上の大寸法のループアンテ
ナを備えたＲＦＩＤ用タグを提供することを課題として
いる。However, the size of the parts that can be handled in the semiconductor assembling process is about 7 cm square or less, and it is difficult to handle parts of 10 cm square or more. Therefore, an object of the present invention is to provide an RFID tag equipped with a large-sized loop antenna of 10 cm square or more that cannot be handled in a semiconductor assembly process.

【０００５】[0005]

【課題を解決するための手段】上記の課題を解決するた
めの本発明のループアンテナ付きＲＦＩＤ用タグは、通
信周波数に同調する第１ループアンテナと、第２ループ
アンテナ付きＲＦＩＤ用タグとを備え、前記第１ループ
アンテナの寸法が１０ｃｍ角以上で３０ｃｍ角以下であ
り、前記第２ループアンテナ付きＲＦＩＤ用タグの寸法
が１ｃｍ角以上で７ｃｍ角以下である。An RFID tag with a loop antenna according to the present invention for solving the above problems comprises a first loop antenna tuned to a communication frequency and a second RFID tag with a loop antenna. The size of the first loop antenna is 10 cm square or more and 30 cm square or less, and the size of the RFID tag with the second loop antenna is 1 cm square or more and 7 cm square or less.

【０００６】[0006]

【発明の実施の形態】以下、図面を参照して本発明の実
施の形態について説明する。本発明のループアンテナ付
きＲＦＩＤ用タグは、１０ｃｍ以上の大きいサイズのル
ープアンテナと、ＩＣチップを搭載した５ｃｍ程度以下
のタグを、それぞれ独立に製造した後、これらを位置決
めして固定し、配線等の物理的接続を行わず、電気的結
合（電磁誘導）により接続したものである。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. The RFID tag with a loop antenna of the present invention independently manufactures a large-sized loop antenna of 10 cm or more and a tag of about 5 cm or less on which an IC chip is mounted, and then positions and fixes these to fix the wiring, etc. No physical connection is made, but they are connected by electrical coupling (electromagnetic induction).

【０００７】図１は、一辺１０ｃｍ以上のループアンテ
ナの完成品の平面図である。この完成品は、基板２１上
に、ループアンテナのコイル２２がパターン形成され、
ループアンテナのコイル２２の両端が同調用コンデンサ
２３に接続されている。FIG. 1 is a plan view of a completed loop antenna having a side of 10 cm or more. In this finished product, the coil 22 of the loop antenna is patterned on the substrate 21,
Both ends of the coil 22 of the loop antenna are connected to the tuning capacitor 23.

【０００８】ここに、基板２１は銅箔付きガラスエポキ
シ基板等を用いる。ループアンテナのコイル２２を作成
するためには、たとえば、銅箔付きガラスエポキシ基板
の不要部分をエッチング液によって除去し、必要なコイ
ルパターンを得ればよい。また、同調用コンデンサ２３
は、個別部品を基板２１に半田付け等して固定する。た
だし、同調用コンデンサ２３もパターン形成で作成する
ことは可能である。ループアンテナのコイル２２と同調
用コンデンサ２３は、ハンダ付け等で電気接続される。
このようにして、１０ｃｍ以上で３０ｃｍ以下のループ
アンテナの完成品を得る。このループアンテナは、通信
周波数に同調する。Here, as the substrate 21, a glass epoxy substrate with a copper foil or the like is used. In order to form the coil 22 of the loop antenna, for example, an unnecessary portion of the glass epoxy substrate with copper foil may be removed with an etching solution to obtain a required coil pattern. In addition, the tuning capacitor 23
Is fixed to the board 21 by soldering or the like. However, the tuning capacitor 23 can also be formed by pattern formation. The coil 22 of the loop antenna and the tuning capacitor 23 are electrically connected by soldering or the like.
In this way, a completed loop antenna having a length of 10 cm or more and 30 cm or less is obtained. This loop antenna is tuned to the communication frequency.

【０００９】図２は、本発明のループアンテナ付きＲＦ
ＩＤ用タグの平面図である。本発明のループアンテナ付
きＲＦＩＤ用タグは、図１に示した一辺１０ｃｍ以上の
ループアンテナの完成品上に、別途製造した５ｃｍ程度
のＲＦＩＤ用タグ３１の完成品を搭載したものである。
ＲＦＩＤ用タグの完成品３１は、基板２１の所定の箇所
に位置決めされ接着等によって固定されるが、ループア
ンテナ２２との間で配線等の物理的接続はなされておら
ず、電磁誘導により電気的に結合している。FIG. 2 shows the RF with loop antenna of the present invention.
It is a top view of an ID tag. The RFID tag with a loop antenna according to the present invention has a finished product of a separately manufactured RFID tag 31 of about 5 cm mounted on the finished product of the loop antenna having a side of 10 cm or more shown in FIG.
The finished product 31 of the RFID tag is positioned at a predetermined position on the substrate 21 and fixed by adhesion or the like, but no physical connection such as wiring is made between the RFID tag and the loop antenna 22, and the RFID tag is electrically connected by electromagnetic induction. Are bound to.

【００１０】ＲＦＩＤ用タグの完成品３１は、通信周波
数に適合したループアンテナをＩＣチップに接続したも
のである。また、ＲＦＩＤ用タグ３１の完成品は、１ｃ
ｍ角以上７ｃｍ角以下の寸法のものが製造可能である。
ＲＦＩＤ用タグの完成品３１は、基板２１の所定の箇所
に位置決めされ接着等によって固定される。このように
して、本発明によれば、１０ｃｍ角以上で３０ｃｍ角以
下の大きな寸法のループアンテナ付きＲＦＩＤ用タグが
得られる。A finished product 31 of the RFID tag is a loop antenna adapted to a communication frequency and connected to an IC chip. The finished product of the RFID tag 31 is 1c.
It is possible to manufacture a product having a size of m square to 7 cm square.
The finished product 31 of the RFID tag is positioned at a predetermined position on the substrate 21 and fixed by adhesion or the like. In this way, according to the present invention, an RFID tag with a loop antenna having a large size of 10 cm square to 30 cm square can be obtained.

【００１１】本発明のループアンテナ付きＲＦＩＤ用タ
グは、非接触ＲＦＩＤであり、路面又は壁面に設置する
等して使用される。たとえば、白杖の先端等に設けたア
ンテナを、所定の通信周波数信号を発信する本発明のル
ープアンテナ付きＲＦＩＤ用タグに接近させれば、非接
触で、その通信周波数信号を受信することができる。こ
れによって、進路を安全に誘導すること等が可能とな
る。The RFID tag with a loop antenna of the present invention is a non-contact RFID and is used by being installed on a road surface or a wall surface. For example, if an antenna provided at the tip of a white cane is brought close to the RFID tag with a loop antenna of the present invention that transmits a predetermined communication frequency signal, the communication frequency signal can be received in a contactless manner. . As a result, it is possible to safely guide the route.

【００１２】[0012]

【発明の効果】以上説明した本発明によれば、ワイヤー
ボンディングやフリップチップ等の半導体組立工程を経
ることなく、１０ｃｍ角以上の寸法のループアンテナ付
きＲＦＩＤ用タグを、容易にまた安価に提供することが
できる。According to the present invention described above, an RFID tag with a loop antenna having a size of 10 cm square or more can be provided easily and inexpensively without going through a semiconductor assembly process such as wire bonding or flip chip. be able to.

【図面の簡単な説明】[Brief description of drawings]

【図１】一辺１０ｃｍ以上のループアンテナの完成品の
平面図FIG. 1 is a plan view of a completed loop antenna with a side of 10 cm or more.

【図２】一辺１０ｃｍ以上のループアンテナの完成品を
備えた本発明のループアンテナ付きＲＦＩＤ用タグの平
面図FIG. 2 is a plan view of an RFID tag with a loop antenna according to the present invention, which includes a completed loop antenna with a side of 10 cm or more.

【図３】従来のＲＦＩＤ用タグFIG. 3 Conventional RFID tag

【符号の簡単な説明】[Simple explanation of symbols]

１、２１ 基板 ２ ＲＦＩＤ（Radio Frequency Identification）用
ＩＣ ３、２２ ループアンテナのコイル ２３ 同調用コンデンサ ３１ ＲＦＩＤ用タグ1, 21 substrate 2 RFID (Radio Frequency Identification) IC 3, 22 loop antenna coil 23 tuning capacitor 31 RFID tag

───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 5B035 BA03 BB09 CA11 CA23 5J046 AA01 AA19 AB11 PA07 5J047 AA01 AA19 AB11 EF04 EF05   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 5B035 BA03 BB09 CA11 CA23                 5J046 AA01 AA19 AB11 PA07                 5J047 AA01 AA19 AB11 EF04 EF05

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 通信周波数に同調する第１ループアンテ
ナと、 第２ループアンテナ付きＲＦＩＤ用タグとを備え、 前記第１ループアンテナの寸法が１０ｃｍ角以上で３０
ｃｍ角以下であり、 前記第２ループアンテナ付きＲＦＩＤ用タグの寸法が１
ｃｍ角以上で７ｃｍ角以下であることを特徴とするルー
プアンテナ付きＲＦＩＤ用タグ。1. A first loop antenna tuned to a communication frequency, and an RFID tag with a second loop antenna, wherein the size of the first loop antenna is 10 cm square or more and 30 mm or more.
The size of the RFID tag with the second loop antenna is 1 cm or less.
An RFID tag with a loop antenna, which is not less than 7 cm and not more than 7 cm. 【請求項２】 前記第２ループアンテナ付きＲＦＩＤ用
タグは、非接触ＲＦＩＤ用タグであることを特徴とする
請求項１記載のループアンテナ付きＲＦＩＤ用タグ。2. The RFID tag with a loop antenna according to claim 1, wherein the RFID tag with a second loop antenna is a non-contact RFID tag. 【請求項３】 路面又は壁面に設置することを特徴とす
る請求項１記載のループアンテナ付きＲＦＩＤ用タグ。3. The RFID tag with a loop antenna according to claim 1, which is installed on a road surface or a wall surface.
JP2002047282A 2002-02-25 2002-02-25 Tag for rfid with loop antenna Pending JP2003249813A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002047282A JP2003249813A (en) 2002-02-25 2002-02-25 Tag for rfid with loop antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002047282A JP2003249813A (en) 2002-02-25 2002-02-25 Tag for rfid with loop antenna

Publications (1)

Publication Number Publication Date
JP2003249813A true JP2003249813A (en) 2003-09-05

Family

ID=28660384

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002047282A Pending JP2003249813A (en) 2002-02-25 2002-02-25 Tag for rfid with loop antenna

Country Status (1)

Country Link
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