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
cm
rfid tag
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
Etsuo Koyama
信夫 古屋
悦雄 小山
Original Assignee
Tecdia Kk
テクダイヤ株式会社
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 Kk, テクダイヤ株式会社 filed Critical Tecdia Kk
Priority to JP2002047282A priority Critical patent/JP2003249813A/en
Publication of JP2003249813A publication Critical patent/JP2003249813A/en
Application status is Pending legal-status Critical

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009Methods 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
    • G06K7/10158Methods 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
    • G06K7/10178Methods 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

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】 【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 [0001] [Technical Field of the Invention The present invention relates to tag with the loop antenna RFID (Radio Frequency Identification). 【0002】 【従来の技術】従来、非接触型RFID(Radio Frequ [0004] Conventionally, contactless RFID (Radio Frequ
ency Identification)用タグは、図3に示すように、 ency for the Identification) tag, as shown in FIG. 3,
基板1に搭載されたRFID用ICチップ2と、このI The RFID IC chip 2 mounted on substrate 1, the 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。 C is connected to the chip 2 made of a loop antenna 3 that is patterned in a coil shape on a substrate. 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× One side of a conventional non-contact type RFID tag is about 5 cm, greater in size of a credit card for example 5.4 cm ×
8.5cm程度である。 It is about 8.5cm. 【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 [0003] Thus, for example, as shown in FIG. 3, the conventional non-contact type RFID tag, RFI mounted using a semiconductor manufacturing process of assembling the IC chip on the substrate 1
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。 D IC chip 2 and the loop antenna 3, the connecting portion 4 of the back surface of the substrate, are connected by a through hole (those that have been plated inner wall of the through hole) 5,5 '. 【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。 [0004] The present invention is to provide, however, the dimensions of the parts that can be handled by semiconductor assembly process is more than about 7cm square, in particular, it is difficult to deal with 10cm square about more parts. 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。 Accordingly, the present invention has an object to provide an RFID tag having a loop antenna of a large size of more than 10cm square that can not be handled in the semiconductor assembly process. 【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。 [0005] Loop Antenna RFID tag with the present invention for solving the above problems, there is provided a means for solving] it includes a first loop antenna tuned to the communication frequency, the RFID-tagged second loop antenna with the door, the size of the first loop antenna is not more than 30cm square above 10cm square, the size of the second loop RFID tag with antenna is less than 7cm angle than 1cm square. 【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。 DETAILED DESCRIPTION OF THE INVENTION Hereinafter, with reference to the drawings will be described embodiments of the present invention. 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。 Loop antenna for RFID-tagged of the present invention, after a loop antenna or a large size 10 cm, the about 5cm following tags equipped with an IC chip was prepared independently, and positioning and fixing them, wiring, etc. without physical connections, which 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。 [0007] FIG. 1 is a plan view of the finished product of one side 10cm or more of the loop antenna. 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、 The finished product, on the substrate 21, the coil 22 of the loop antenna is patterned,
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。 Both ends of the coil 22 of the loop antenna is connected to a 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。 [0008] Here, the substrate 21 is used with copper foil glass epoxy substrate or the like. 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。 To create a coil 22 of the loop antenna, for example, an unnecessary portion of the glass epoxy substrate with copper foil was removed by an etchant, or if you get a coil pattern required. また、同調用コンデンサ23 In addition, a tuning capacitor 23
は、個別部品を基板21に半田付け等して固定する。 It is fixed by soldering or the like discrete components on a substrate 21. 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。 However, it is possible to create by also patterned tuning capacitor 23. 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。 Coil 22 and tuning capacitor 23 of the loop antenna is electrically connected by soldering or the like.
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。 In this way, we obtain the following loop antenna 30cm by 10cm or more finished product. このループアンテナは、通信周波数に同調する。 The 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 [0009] Figure 2 is a loop antenna with RF of the present invention
ID用タグの平面図である。 It is a plan view of the tag ID. 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。 Loop antenna for RFID-tagged of the present invention, one side more than 10cm of the loop antenna on the finished product shown in FIG. 1, but equipped with a separately prepared was about 5cm PVC of the RFID tag 31.
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。 Completed 31 of the RFID tag is being positioned at a predetermined position of the substrate 21 is fixed by adhesion or the like, physical connection wiring or the like between the loop antenna 22 is not made, electrically by electromagnetic induction It is 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。 [0010] Completed 31 of the RFID tag is obtained by connecting a loop antenna adapted for communication frequency to the IC chip. また、RFID用タグ31の完成品は、1c In addition, the finished product of the RFID tag 31, 1c
m角以上7cm角以下の寸法のものが製造可能である。 Those m square or larger 7cm angle following dimensions can be produced.
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。 Completed 31 of the RFID tag is positioned at a predetermined position of the substrate 21 is fixed by adhesion or the like. 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。 In this way, according to the present invention, a loop RFID tag with antenna large dimensions 30cm angle less above 10cm square 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。 [0011] Loop Antenna RFID tag with the present invention is a non-contact RFID, is used by, for example installed in the road surface or wall. 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。 For example, an antenna provided at the tip or the like of the white cane, if close to the loop RFID tag with antenna of the present invention for transmitting a predetermined communication frequency signals, in a non-contact, it is possible to receive the communication frequency signals . 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。 This allows such safely guideway. 【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 according to the present invention above, without going through the semiconductor fabrication process such as wire bonding or flip-chip, a loop RFID tag with antenna 10cm square or larger in size, easily also cheaper it is possible to provide in.

【図面の簡単な説明】 【図1】一辺10cm以上のループアンテナの完成品の平面図【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【図3】従来のRFID用タグ【符号の簡単な説明】 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 Plane BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of a completed product of one side more than 10cm of the loop antenna 2 shows a loop RFID tag with antenna of the present invention with a finished product of one side 10cm or more loop antennas Figure 3 shows a conventional bRIEF dESCRIPTION oF REFERENCE nUMERALS RFID tag 1, 21 a substrate 2 RFID (Radio Frequency Identification) for IC 3 or 22 coils 23 a tuning capacitor 31 RFID tag loop antenna

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Claims (1)

  1. 【特許請求の範囲】 【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 And [Claims 1 tunes to the communication frequency first loop antenna, and a RFID tag with the second loop antenna, with dimensions of the first loop antenna is more than 10cm square 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 Or less cm square, the size of the RFID-tagged the second loop antenna 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。 RFID tag with a loop antenna, characterized in that in cm square or more and less 7cm angle. 【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。 Wherein said second tag loop antenna with RFID is claim 1 loop antenna for RFID tagged wherein a 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. A road or claim 1 RFID tag with a loop antenna, wherein placing the wall.
JP2002047282A 2002-02-25 2002-02-25 Tag for rfid with loop antenna Pending JP2003249813A (en)

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