JP2006074348A - Coil antenna for non-contact communication apparatus and its manufacturing method - Google Patents

Coil antenna for non-contact communication apparatus and its manufacturing method Download PDF

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JP2006074348A
JP2006074348A JP2004254216A JP2004254216A JP2006074348A JP 2006074348 A JP2006074348 A JP 2006074348A JP 2004254216 A JP2004254216 A JP 2004254216A JP 2004254216 A JP2004254216 A JP 2004254216A JP 2006074348 A JP2006074348 A JP 2006074348A
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coil antenna
prototype
folded double
double line
sides
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JP4186895B2 (en
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Toshio Shimizu
敏雄 清水
Tatsuya Hirata
達也 平田
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Denso Wave Inc
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Denso Wave Inc
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Abstract

<P>PROBLEM TO BE SOLVED: To manufacture a coil antenna capable of obtaining magnetic field strength suitable to individual use environment. <P>SOLUTION: A half side of a prototype coil antenna 3 is rotated vertically through 180 degrees so that intermediate folding double line parts 3b and 3h stretch in straight line and then its right half side is folded to lie over the left half side. Thus, a small-sized coil antenna 4 which is half as large as the prototype coil antenna 3 and is double in strength of a generated magnetic field can be manufactured. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明はＩＣカードなどの非接触式データキャリアと非接触で通信する非接触通信装置において、その送受信のために用いられるコイルアンテナおよびその製造方法に関する。   The present invention relates to a coil antenna used for transmission / reception in a non-contact communication device that communicates with a non-contact data carrier such as an IC card in a non-contact manner, and a manufacturing method thereof.

例えば特許文献１には、宅配便の配送システムにおいて、集配した荷物の仕分け作業を自動で行うために、荷物に電子荷札（非接触データキャリア）を取り付け、質問器（非接触通信装置）によってこの電子荷札と非接触で通信して電子荷札に記憶された宛先などを読み出すようにすることが記載されている。このように非接触データキャリアと通信する非接触通信装置では、その通信のためにコイルアンテナを備えている。
特開平４−３３３４１５号公報 For example, in Patent Document 1, an electronic tag (non-contact data carrier) is attached to a package and an interrogator (non-contact communication device) is used to automatically sort the collected packages in a delivery system for a courier. It is described that communication is made in a non-contact manner with an electronic tag and the destination stored in the electronic tag is read out. Thus, the non-contact communication apparatus that communicates with the non-contact data carrier includes a coil antenna for the communication.
JP-A-4-333415

従来の非接触通信装置では、コイルアンテナの形状が固定であるため、通信範囲を拡大したい場合、送信出力を大きくするか、コイルアンテナの形状が大きいアンテナに置き替える必要がある。或は、通信範囲を狭くしたい場合も上述したと同様で、送信出力小さくするか、コイルアンテナの形状が小さいアンテナに置き替えることが必要である。
しかしながら、通信エリアを遠方にまで広げるために送信出力（コイルアンテナに流す電流の強さ）を強くすると、非接触通信装置の近傍の磁界が非常に強くなるため、データキャリアが近くに来たとき、データキャリアが破壊される危険性がある。これは、コイルアンテナの大きさを一定にしたままで送信出力を増加させると、発生する磁界の強さは距離の３乗に反比例することが原因で起きる問題である。 In the conventional non-contact communication apparatus, since the shape of the coil antenna is fixed, when it is desired to expand the communication range, it is necessary to increase the transmission output or to replace the antenna with a large coil antenna. Alternatively, when it is desired to narrow the communication range, it is necessary to reduce the transmission output or replace the coil antenna with a smaller antenna as described above.
However, when the transmission output (strength of the current flowing through the coil antenna) is increased to extend the communication area far away, the magnetic field in the vicinity of the non-contact communication device becomes very strong, so when the data carrier comes close There is a risk that the data carrier will be destroyed. This is a problem caused by increasing the transmission output while keeping the size of the coil antenna constant, because the strength of the generated magnetic field is inversely proportional to the cube of the distance.

また、コイルアンテナの送信出力を切り換えるための切り替え回路を追加すると、送信インピーダンスのマッチングの大きなずれが発生し、その解決のために試行錯誤を繰り返さねばならず、開発期間が長くなると共に、設計の余裕度が小さくなる。
今後、データキャリアの種類が多様化してゆく中で、非接触通信装置の送信出力の調整のみでは、個々の使用環境にとって最適な発生磁界を作り出すことは難しく、使用環境に応じたコイルアンテナを用いることが重要となってくる。 In addition, if a switching circuit for switching the transmission output of the coil antenna is added, a large shift in the matching of the transmission impedance occurs, and trial and error must be repeated to solve the problem. The margin is reduced.
In the future, as the types of data carriers are diversifying, it is difficult to generate a magnetic field that is optimal for each usage environment simply by adjusting the transmission output of the non-contact communication device. Use a coil antenna that matches the usage environment. It becomes important.

本発明は上記の事情に鑑みてなされたもので、その目的は、個々の使用環境に適した磁界強度を得ることができるコイルアンテナおよびその製造方法を提供することにある。   The present invention has been made in view of the above circumstances, and an object thereof is to provide a coil antenna capable of obtaining a magnetic field intensity suitable for each use environment and a manufacturing method thereof.

請求項１の非接触通信装置用コイルアンテナは、ほぼ矩形状をなし、対向する２辺のうちの少なくとも一方の辺の中間に他方の辺に向って伸びる折り返し二重線部を形成してなるものである。
請求項４の非接触通信装置用コイルアンテナの製造方法は、ほぼ矩形状をなし、１組の対向する２辺のうちの少なくとも一方の辺の中間に他方の辺に向って伸びる折り返し二重線部が形成されたフレキシブルな原型コイルアンテナにおいて、当該原型コイルアンテナの片側半分を残る片側半分に対して前記折り返し二重線部が直線状となるように１８０度回転させ、その後、前記原型コイルアンテナの前記片側半分を前記残る片側半分に重ねるように折り返すことによって前記原型コイルアンテナより小型で該原型コイルアンテナより強い磁界強度を生成する小型コイルアンテナを形成するようにしたことを特徴とする。 The coil antenna for a non-contact communication device according to claim 1 has a substantially rectangular shape, and is formed with a folded double line portion extending toward the other side in the middle of at least one of the two opposing sides. Is.
The method for manufacturing a coil antenna for a non-contact communication apparatus according to claim 4 is substantially a rectangular shape, and is a folded double line extending toward the other side in the middle of at least one side of a pair of two opposing sides. In the flexible prototype coil antenna formed with a portion, one half of the prototype coil antenna is rotated 180 degrees so that the folded double line portion is linear with respect to the remaining half, and then the prototype coil antenna A small coil antenna that is smaller than the original coil antenna and generates a magnetic field strength stronger than that of the original coil antenna is formed by folding the half of the one side over the remaining half of the one side.

請求項１のコイルアンテナは、請求項４における原型コイルアンテナに相当する。そして、請求項４により製造したコイルアンテナは、請求項１のコイルアンテナの半分の大きさで、コイルの巻き数が請求項１のコイルアンテナの倍となるので、その発生磁界の強さも請求項１のコイルアンテナの倍となる。   The coil antenna according to claim 1 corresponds to the prototype coil antenna according to claim 4. The coil antenna manufactured according to claim 4 is half the size of the coil antenna according to claim 1 and the number of turns of the coil is twice that of the coil antenna according to claim 1, so that the strength of the generated magnetic field is also claimed. 1 times the coil antenna.

また、請求項２の非接触通信装置用コイルアンテナは、ほぼ矩形状をなし、１組の対向する２辺の中間および残る１組の対向する２辺の中間に、それぞれ対向する辺に向って伸びる折り返し二重線部を形成してなるものである。
請求項５の非接触通信装置用コイルアンテナの製造方法は、ほぼ矩形状をなし、１組の対向する２辺の中間および残る１組の対向する２辺の中間に、それぞれ対抗する辺に向って伸びる折り返し二重線部が形成されたフレキシブルな原型コイルアンテナにおいて、当該原型コイルアンテナの片側半分を残る片側半分に対して前記２組の対向する２辺のうちの一方の組の対向２辺の前記折り返し二重線部が直線状となるように１８０度回転させ、その後、前記原型コイルアンテナの前記片側半分を前記残る片側半分に重ねるように折り返すことによって中間コイルアンテナを形成し、前記中間コイルアンテナの片側半分を残る片側半分に対して前記２組の対向する２辺のうちの他方の組の対向２辺の前記折り返し二重線部が直線状となるように１８０度回転させ、その後、前記中間コイルアンテナの前記片側半分を前記残る片側半分に重ねるように折り返すことによって前記原型コイルアンテナより小型で該原型コイルアンテナより強い磁界強度を生成する小型コイルアンテナを形成するようにしたことを特徴とする。 Further, the coil antenna for a non-contact communication device according to claim 2 is substantially rectangular, and is in the middle of one set of two opposite sides and in the middle of the remaining one set of two opposite sides, toward the opposite sides. An extended folded double line portion is formed.
The method for manufacturing a coil antenna for a non-contact communication apparatus according to claim 5 is substantially rectangular, and is directed to the opposite sides between the middle of one pair of two opposite sides and the middle of the remaining one pair of opposite sides. In the flexible prototype coil antenna formed with the folded double line portion extending in the same direction, the opposite two sides of one set of the two sets of opposite sides with respect to the remaining half on one side of the prototype coil antenna The folded double wire portion is rotated 180 degrees so as to be linear, and then the intermediate coil antenna is formed by folding the one half of the prototype coil antenna so as to overlap the remaining half. The folded double line portion on the opposite two sides of the other two of the two sets of opposite sides to the remaining half on one side of the coil antenna is linear. A small coil antenna that is smaller than the original coil antenna and generates stronger magnetic field strength than the original coil antenna is formed by rotating 80 degrees and then folding the one half of the intermediate coil antenna over the remaining half. It was made to do.

請求項２のコイルアンテナは、請求項５における原型コイルアンテナに相当する。そして、請求項５により製造したコイルアンテナは、請求項２のコイルアンテナの４分の１の大きさで、コイルの巻き数が請求項２のコイルアンテナの４倍となるので、その発生磁界の強さも請求項１のコイルアンテナの４倍となる。   The coil antenna according to claim 2 corresponds to the prototype coil antenna according to claim 5. The coil antenna manufactured according to claim 5 is one-fourth the size of the coil antenna of claim 2 and the number of turns of the coil is four times that of the coil antenna of claim 2. The strength is also four times that of the coil antenna of claim 1.

請求項３の非接触通信装置用コイルアンテナの製造方法は、ほぼ矩形状に形成されたフレキシブルな原型コイルアンテナを、１組の対向する二辺の偶数箇所で折り返すことにより、前記原型コイルアンテナより小型で該原型コイルアンテナと同等の磁界強度を生成する小型コイルアンテナを形成するようにしたことを特徴とする。
この請求項３の方法により製造したコイルアンテナは、原型コイルアンテナの大きさの（１／折り返し個所数）になるが、発生磁界の強さは原型コイルアンテナと同等となる。 According to a third aspect of the present invention, there is provided a method for manufacturing a coil antenna for a non-contact communication device, wherein a flexible original coil antenna formed in a substantially rectangular shape is folded at an even number of two opposing sides, thereby A small coil antenna that generates a magnetic field strength equivalent to that of the prototype coil antenna is formed.
The coil antenna manufactured by the method of claim 3 has a size (1 / number of folded points) of the size of the original coil antenna, but the intensity of the generated magnetic field is equivalent to that of the original coil antenna.

［第１実施例］
以下、本発明の第１実施例を図１により説明する。この実施例は請求項３に対応する。
図１（ａ）は原型コイルアンテナ１を示す。この原型コイルアンテナ１は、１本の銅線、またはプラスチックフィルム上にプリント配線によって矩形状に形成され、両端部は非接触通信装置に接続される接続部１ａ、１ｂとされている。このフレキシブルな原型コイルアンテナ１から発生磁界の強さが同じで且つ小型のコイルアンテナ２を製造する。 [First embodiment]
A first embodiment of the present invention will be described below with reference to FIG. This embodiment corresponds to claim 3.
FIG. 1A shows a prototype coil antenna 1. The prototype coil antenna 1 is formed in a rectangular shape by printed wiring on one copper wire or plastic film, and both end portions are connection portions 1a and 1b connected to a non-contact communication device. A small coil antenna 2 having the same strength of the generated magnetic field is produced from the flexible prototype coil antenna 1.

原型コイルアンテナ１から小型コイルアンテナ２を製造する方法は、原型コイルアンテナ１の２組の対向２辺１ｃ、１ｄおよび１ｅ、１ｆのうち、例えば図１（ａ）において上下に対向する一方の組の２辺１ｃ、１ｄを、左右に対向する他の組の２辺１ｅ、１ｆの間の偶数個所、この実施例では２箇所（辺１ｃ、１ｄを三等分する位置；図１（ａ）に一点鎖線Ａ、Ｂで示す線。）で折り返す、というものである。   The method of manufacturing the small coil antenna 2 from the prototype coil antenna 1 is, for example, one of the two opposing two sides 1c, 1d and 1e, 1f of the prototype coil antenna 1 that is vertically opposed in FIG. 2 sides 1c and 1d are even portions between the other sides 2e 1e and 1f of the other set facing left and right, in this embodiment, two locations (positions where the sides 1c and 1d are equally divided; FIG. 1 (a) The lines are indicated by alternate long and short dashed lines A and B.).

このようにして形成した小型コイルアンテナ２において、４辺２ａ〜２ｄのうち、図示左右の２辺２ｃ、２ｄは、それぞれ１本の線（原型コイルアンテナ１の辺１ｅ、１ｆ）からなり、図示上下の２辺２ａ、２ｂは、それぞれ３本の線（原型コイルアンテナ１の辺１ｃ、１ｄを２箇所で折り返して重ねた３本の線１ｃ−１、１ｃ−２、１ｃ−３、１ｄ−１、１ｄ−２、１ｄ−３）からなる。   In the small coil antenna 2 formed in this way, among the four sides 2a to 2d, the two left and right sides 2c and 2d shown in the drawing are each composed of one line (sides 1e and 1f of the prototype coil antenna 1). The two upper and lower sides 2a and 2b are respectively composed of three lines (three lines 1c-1, 1c-2, 1c-3, 1d-, which are obtained by folding the sides 1c and 1d of the prototype coil antenna 1 in two places). 1, 1d-2, 1d-3).

小型コイルアンテナ２を非接触通信装置に組み付けた場合、非接触通信装置からＩＣカードやＲＦＩＤタグなどのデータキャリアへの送信時、小型コイルアンテナ２には電流が流れる。このとき、２辺２ａおよび２ｂを構成する３本の線１ｃ−１、１ｃ−２、１ｃ−３および１ｄ−１、１ｄ−２、１ｄ−３に流れる電流の向きは、２本の線１ｃ−１、１ｃ−３および１ｄ−１、１ｄ−３は同じで、１本の線１ｃ−２および１ｄ−２は逆となるので、３本の線１ｃ−１、１ｃ−２、１ｃ−３および１ｄ−１、１ｄ−２、１ｄ−３を流れる電流によって発生する磁束のうち、電流の向きが互いに逆となっている２本の線の磁束は互いに相殺される。   When the small coil antenna 2 is assembled in a non-contact communication device, a current flows through the small coil antenna 2 during transmission from the non-contact communication device to a data carrier such as an IC card or an RFID tag. At this time, the direction of the current flowing through the three lines 1c-1, 1c-2, 1c-3 and 1d-1, 1d-2, 1d-3 constituting the two sides 2a and 2b is determined by the two lines 1c. -1, 1c-3 and 1d-1, 1d-3 are the same, and one line 1c-2 and 1d-2 are reversed, so three lines 1c-1, 1c-2, 1c-3 Among the magnetic fluxes generated by the currents flowing through 1d-1, 1d-2, and 1d-3, the magnetic fluxes of the two lines whose current directions are opposite to each other cancel each other.

このため、小型コイルアンテナ２は、大きさが原型コイルアンテナ１の３分の１で、磁界強さが原型コイルアンテナ１と同じとなる。従って、原型コイルアンテナ１をそのまま非接触通信装置のコイルアンテナとして使用することにより、広い範囲（コイルアンテナのコイル線と同じ面での面積範囲）で一様な磁界を生成し、小型コイルアンテナ２では原型コイルアンテナ１と同じ強さの磁界を狭い範囲で生成することができ、一種類のコイルアンテナで、容易に２つの使用環境に対応することができる。   For this reason, the small coil antenna 2 is one-third the size of the original coil antenna 1 and has the same magnetic field strength as the original coil antenna 1. Therefore, by using the prototype coil antenna 1 as a coil antenna of the non-contact communication apparatus as it is, a uniform magnetic field is generated in a wide range (area range on the same surface as the coil wire of the coil antenna), and the small coil antenna 2 Thus, a magnetic field having the same strength as that of the original coil antenna 1 can be generated in a narrow range, and one type of coil antenna can easily cope with two usage environments.

［第２実施例］
図２は本発明の第２実施例を示す。この実施例は請求項１および４に対応する。
図２（ａ）はフレキシブルな原型コイルアンテナ３を示す。この原型コイルアンテナ３は、１本の銅線によって矩形状に形成され、両端部は非接触通信装置に接続される接続部３ａ、３ｂとされている。この原型コイルアンテナ１の２組の対向２辺３ｃ、３ｄおよび３ｅ、３ｆのうち、図示上下に対向する２辺３ｃ、３ｄの長さ方向中間には、対向する辺に向って伸びるほぼＵ字状の折り返し二重線部３ｇ、３ｈが形成されている。なお、折り返し二重線部３ｇ、３ｈの先端は実際には互いに接しているが、わかり易く図示したため、図では離れている。 [Second Embodiment]
FIG. 2 shows a second embodiment of the present invention. This embodiment corresponds to claims 1 and 4.
FIG. 2A shows a flexible prototype coil antenna 3. The prototype coil antenna 3 is formed in a rectangular shape by a single copper wire, and both end portions are connection portions 3a and 3b connected to a non-contact communication device. Of the two opposing two sides 3c, 3d and 3e, 3f of the prototype coil antenna 1, in the middle in the longitudinal direction of the two sides 3c, 3d that are vertically opposed to each other, a substantially U-shape extending toward the opposite sides. Folded double line portions 3g and 3h are formed. The ends of the folded double line portions 3g and 3h are actually in contact with each other, but are separated in the figure because they are shown in an easy-to-understand manner.

この原型コイルアンテナ３から発生磁界の強さが２倍で且つ大きさが半分の小型コイルアンテナ４（図２（ｃ）参照）を製造する。この製造手順を説明すると、まず、原型コイルアンテナ３のうち、折り返し二重線部３ｇ、３ｈを境にした両側のうちの片側半分、例えば右側半分を左側半分に対して、折り返し二重線部３ｇ、３ｈが直線状となるように、上下に１８０度回転させて図２（ｂ）に示す中間コイルアンテナ５を形成する。   From this prototype coil antenna 3, a small coil antenna 4 (see FIG. 2 (c)) in which the intensity of the generated magnetic field is twice and the size is half is manufactured. The manufacturing procedure will be described. First, in the prototype coil antenna 3, one side half of both sides of the folded double line portion 3g, 3h, for example, the right half is the folded double line portion with respect to the left half. The intermediate coil antenna 5 shown in FIG. 2B is formed by rotating 180 degrees up and down so that 3g and 3h are linear.

次に、中間コイルアンテナ５の右側半分を、直線状に伸びた折り返し二重線部３ｇ、３ｈを中心にして１８０度回転させて左側半分に重ねるように折り返す。これにより、図２（ｃ）に示す小型コイルアンテナ４が形成される。このようにして形成された小型コイルアンテナ４において、４辺４ａ〜４ｄは、いずれも２本の線からなる。つまり、小型コイルアンテナ４の上辺４ａは、原型コイルアンテナ３の上辺３ｃの左側半分３ｃ−１と下辺３ｄの右側半分３ｄ−２とからなり、下辺４ｂは、原型コイルアンテナ３の下辺３ｄの左側半分３ｂ−１と上辺３ｃの右側半分３ｃ−２とからなる。また、小型コイルアンテナ４の左辺４ｃは、原型コイルアンテナ３の左辺３ｅと右辺３ｆとからなり、右辺４ｄは、原型コイルアンテナ３の直線状に伸びた２本の折り返し二重線部３ｇ、３ｈからなる。   Next, the right half of the intermediate coil antenna 5 is turned 180 degrees around the folded double line portions 3g and 3h extending in a straight line so as to overlap the left half. Thereby, the small coil antenna 4 shown in FIG.2 (c) is formed. In the small coil antenna 4 formed in this way, each of the four sides 4a to 4d is composed of two lines. That is, the upper side 4 a of the small coil antenna 4 is composed of the left half 3 c-1 of the upper side 3 c of the prototype coil antenna 3 and the right half 3 d-2 of the lower side 3 d, and the lower side 4 b is the left side of the lower side 3 d of the prototype coil antenna 3. It consists of a half 3b-1 and a right half 3c-2 of the upper side 3c. Further, the left side 4c of the small coil antenna 4 is composed of the left side 3e and the right side 3f of the prototype coil antenna 3, and the right side 4d is two folded double line portions 3g, 3h extending linearly of the prototype coil antenna 3. Consists of.

小型コイルアンテナ４を非接触通信装置に組み付けた場合、非接触通信装置からＩＣカードやＲＦＩＤタグなどのデータキャリアへの送信時、小型コイルアンテナ４には電流が流れる。このとき、各辺４ａ〜４ｄの２本の線にはそれぞれ同じ方向の電流が流れる。このため、小型コイルアンテナ４は、大きさが原型コイルアンテナ３の半分で、原型コイルアンテナ４の２倍の強さの磁界を発生することとなり、非接触通信装置にごく近い範囲でデータキャリアと通信するような場合に好都合となる。   When the small coil antenna 4 is assembled to the non-contact communication device, a current flows through the small coil antenna 4 during transmission from the non-contact communication device to a data carrier such as an IC card or an RFID tag. At this time, currents in the same direction flow through the two lines of the sides 4a to 4d. For this reason, the small coil antenna 4 is half the size of the original coil antenna 3 and generates a magnetic field twice as strong as the original coil antenna 4. This is convenient when communicating.

一方、原型コイルアンテナ３をそのまま非接触通信装置のコイルアンテナとして使用すれば、広い範囲で一様な磁界を生成するようになる。
このように、原型コイルアンテナ３をそのまま使用することにより、広い範囲で一様な磁界を生成し、小型のコイルアンテナ４に変えて使用することにより、原型コイルアンテナ３の２倍の強さの磁界を狭い範囲で生成することができ、一種類のコイルアンテナで、容易に２つの使用環境に対応することができる。 On the other hand, if the prototype coil antenna 3 is used as it is as a coil antenna of a non-contact communication device, a uniform magnetic field is generated over a wide range.
Thus, by using the original coil antenna 3 as it is, a uniform magnetic field is generated in a wide range, and by using it instead of the small coil antenna 4, it is twice as strong as the original coil antenna 3. A magnetic field can be generated in a narrow range, and a single type of coil antenna can easily cope with two usage environments.

［第３実施例］
図３は本発明の第３実施例を示す。この実施例は請求項１および４に対応する。
この実施例が図２に示す第２実施例と異なるところは、図３（ａ）に示すように、原型コイルアンテナ６の上辺６ｃだけに、その中間から下辺６ｄに向って伸びる折り返し二重線部６ｇを形成したところにある。なお、折り返し二重線部６ｇの先端は実際には下辺６ｄに接しているが、わかり易く図示したため、図では離れている。 [Third embodiment]
FIG. 3 shows a third embodiment of the present invention. This embodiment corresponds to claims 1 and 4.
This embodiment differs from the second embodiment shown in FIG. 2 in that, as shown in FIG. 3 (a), only the upper side 6c of the original coil antenna 6 extends from its middle toward the lower side 6d. The portion 6g is formed. The tip of the folded double line portion 6g is actually in contact with the lower side 6d, but is separated in the figure because it is shown in an easy-to-understand manner.

この原型コイルアンテナ６から小型コイルアンテナ７を製造するには、図３（ｂ）に示すように、原型コイルアンテナ６の右側半分を、折り返し二重線部６ｇを直線状に伸ばすように１８０度回転させて中間コイルアンテナ８を形成し、次いで、この中間コイルアンテナ８の右下側半分を、直線状に伸びた折り返し二重線部６ｇと下辺６ｄの交差部で折り返すように１８０度回転させて左上側半分に重ねるようにする。これにより、図３（ｃ）に示すような、各辺７ａ〜７ｄが２本の線からなる小型コイルアンテナ７が製造される。   In order to manufacture the small coil antenna 7 from the prototype coil antenna 6, as shown in FIG. 3 (b), the right half of the prototype coil antenna 6 is turned 180 degrees so that the folded double wire portion 6g extends straight. The intermediate coil antenna 8 is rotated to form the intermediate coil antenna 8, and then the lower right half of the intermediate coil antenna 8 is rotated 180 degrees so as to be folded at the intersection of the folded double-line portion 6g and the lower side 6d. And overlap with the upper left half. Thereby, the small coil antenna 7 which each side 7a-7d consists of two lines as shown in FIG.3 (c) is manufactured.

［第４実施例］
図４は本発明の第４実施例を示す。この実施例は請求項２および５に対応する。
図４（ａ）は原型コイルアンテナ９を示す。この原型コイルアンテナ９は、１本の銅線によって矩形状に形成され、両端部は非接触通信装置に接続される接続部９ａ、９ｂとされている。この原型コイルアンテナ９の１組の対向２辺９ｃ、９ｄの長さ方向中間および残る１組の対向２辺９ｅ、９ｆの長さ方向中間には、それぞれ対向する辺に向って伸びるほぼＵ字状の折り返し二重線部９ｇ〜９ｊが形成されている。なお、折り返し二重線部９ｇ〜９ｊの先端は実際には互いに接しているが、わかり易く図示したため、図では離れている。 [Fourth embodiment]
FIG. 4 shows a fourth embodiment of the present invention. This embodiment corresponds to claims 2 and 5.
FIG. 4A shows the prototype coil antenna 9. The prototype coil antenna 9 is formed in a rectangular shape by a single copper wire, and both end portions are connection portions 9a and 9b connected to a non-contact communication device. The pair of opposite two sides 9c and 9d of the prototype coil antenna 9 is substantially U-shaped and extends in the middle of the remaining pair of opposite two sides 9e and 9f in the longitudinal direction. Folded double line portions 9g to 9j are formed. Note that the ends of the folded double-line portions 9g to 9j are actually in contact with each other, but are separated in the figure because they are shown in an easy-to-understand manner.

このフレキシブルな原型コイルアンテナ９から発生磁界の強さが４倍で且つ大きさが４分の１の小型コイルアンテナ１０を製造する。ここで、原型コイルアンテナ９から小型コイルアンテナ１０（図１０（ｅ）参照）を製造する手順を説明すると、まず、原型コイルアンテナ９のうち、例えば折り返し二重線部９ｇ、９ｈを境にした両側のうちの片側半分、例えば右側半分を左側半分に対して、折り返し二重線部９ｇ、９ｈが直線状となるように、１８０度回転させる。この状態を図４（ｂ）に示す。次に、図４（ｂ）の状態から右側半分を、直線状に伸びた折り返し二重線部９ｇ、９ｈを中心にして１８０度回転させて左側半分に重ねるように折り返して図４（ｃ）に示すような中間コイルアンテナ１１を形成する。   From this flexible prototype coil antenna 9, a small coil antenna 10 having a generated magnetic field strength four times and a quarter size is manufactured. Here, the procedure for manufacturing the small coil antenna 10 (see FIG. 10E) from the prototype coil antenna 9 will be described. First, among the prototype coil antenna 9, for example, the folded double wire portions 9g and 9h are used as boundaries. One half of both sides, for example, the right half, is rotated 180 degrees with respect to the left half so that the folded double line portions 9g, 9h are linear. This state is shown in FIG. Next, from the state of FIG. 4 (b), the right half is turned 180 degrees around the folded double line portions 9g and 9h extending in a straight line and folded so as to overlap the left half, as shown in FIG. 4 (c). An intermediate coil antenna 11 as shown in FIG.

この後、中間コイルアンテナ１１の折り返し二重線部９ｉ、９ｊを境にした両側のうちの片側半分、例えば上側半分を、折り返し二重線部９ｉ、９ｊが直線状となるように、１８０度回転させる。この状態を図４（ｄ）に示す。次に、図４（ｄ）の状態から上右側半分を、直線状に伸びた折り返し二重線部９ｇ〜９ｊの交差部分で１８０度回転させて左下側半分に重ねるように折り返して図４（ｅ）に示すような小型コイルアンテナ１０を形成する。   Thereafter, one half of both sides of the intermediate coil antenna 11 with the folded double wire portions 9i and 9j as a boundary, for example, the upper half, 180 degrees so that the folded double wire portions 9i and 9j are linear. Rotate. This state is shown in FIG. Next, the upper right half from the state of FIG. 4D is rotated 180 degrees at the intersection of the folded double line portions 9g to 9j extending in a straight line and folded back so as to overlap the lower left half. A small coil antenna 10 as shown in e) is formed.

このようにして形成された小型コイルアンテナ１０において、４辺１０ａ〜１０ｄは、いずれも４本の線からなる。つまり、小型コイルアンテナ４の上辺１０ａは、原型コイルアンテナ３の折り返し二重線部９ｇ〜９ｊの半分部分からなり、下辺１０ｂは、原型コイルアンテナ９の上辺９ｃの右側半分９ｃ−２、下辺９ｄの左側半分９ｄ−１、左辺９ｅの上側半分９ｅ−２、右辺９ｆの上側半分９ｆ−２からなる。   In the small coil antenna 10 formed as described above, each of the four sides 10a to 10d includes four lines. That is, the upper side 10a of the small coil antenna 4 is composed of half portions of the folded double wire portions 9g to 9j of the prototype coil antenna 3, and the lower side 10b is the right half 9c-2 and the lower side 9d of the upper side 9c of the prototype coil antenna 9. Left side half 9d-1, upper side half 9e-2 of the left side 9e, and upper side half 9f-2 of the right side 9f.

また、小型コイルアンテナ１０の左辺１０ｃは、原型コイルアンテナ９の上辺９ｃの左側半分９ｃ−１、下辺９ｄの右側半分９ｄ−２、左辺９ｅの下側半分９ｅ−１、右辺９ｆの上側半分９ｆ−１からなり、右辺１０ｄは、原型コイルアンテナ３の折り返し二重線部９ｇ〜９ｊの残りの半分からなる。
小型コイルアンテナ１０を非接触通信装置に組み付けた場合、非接触通信装置からＩＣカードやＲＦＩＤタグなどのデータキャリアへの送信時、小型コイルアンテナ１０には電流が流れる。このとき、各辺１０ａ〜１０ｄの４本の線にはそれぞれ同じ方向の電流が流れる。このため、小型コイルアンテナ１０は、大きさが原型コイルアンテナ９の４分の１で、原型コイルアンテナ９の４倍の強さの磁界を発生することとなる。従って、非接触通信装置に極く近い範囲でデータキャリアと通信するような場合に好都合となる。 The left side 10c of the small coil antenna 10 includes a left half 9c-1 of the upper side 9c of the prototype coil antenna 9, a right half 9d-2 of the lower side 9d, a lower half 9e-1 of the left side 9e, and an upper half 9f of the right side 9f. -1 and the right side 10d is composed of the remaining half of the folded double line portions 9g to 9j of the prototype coil antenna 3.
When the small coil antenna 10 is assembled in a non-contact communication device, a current flows through the small coil antenna 10 during transmission from the non-contact communication device to a data carrier such as an IC card or an RFID tag. At this time, currents in the same direction flow through the four lines of the sides 10a to 10d. For this reason, the small coil antenna 10 is a quarter of the size of the original coil antenna 9 and generates a magnetic field four times as strong as the original coil antenna 9. Therefore, it is convenient when communicating with the data carrier in a range very close to the non-contact communication device.

一方、原型コイルアンテナ９をそのまま非接触通信装置のコイルアンテナとして使用すれば、広い範囲で一様な磁界を生成するようになる。
このように、原型コイルアンテナ９をそのまま非接触通信装置のコイルアンテナとして使用することにより、広い範囲で一様な磁界を生成し、小型のコイルアンテナ１０に変えて使用することにより、原型コイルアンテナ９の４倍の強さの磁界を狭い範囲で生成することができ、一種類のコイルアンテナで、容易に２つの使用環境に対応することができる。 On the other hand, if the prototype coil antenna 9 is used as it is as a coil antenna of a non-contact communication device, a uniform magnetic field is generated over a wide range.
Thus, by using the original coil antenna 9 as it is as the coil antenna of the non-contact communication apparatus, a uniform magnetic field is generated in a wide range, and the original coil antenna is used by changing to the small coil antenna 10. A magnetic field four times stronger than 9 can be generated in a narrow range, and a single type of coil antenna can easily cope with two usage environments.

本発明の第１実施例を示すもので、原型コイルアンテナから小型コイルアンテナを製造する手順を示す概略図The schematic which shows 1st Example of this invention and shows the procedure of manufacturing a small coil antenna from a prototype coil antenna. 本発明の第２実施例を示す図１相当図FIG. 1 equivalent view showing a second embodiment of the present invention. 本発明の第３実施例を示す図１相当図FIG. 1 equivalent view showing a third embodiment of the present invention. 本発明の第４実施例を示す図１相当図FIG. 1 equivalent view showing a fourth embodiment of the present invention.

符号の説明Explanation of symbols

図面中、１、３、６、９は原型コイルアンテナ、２、４、７、１０は小型コイルアンテナ、５、８、１１は中間コイルアンテナである。   In the drawings, 1, 3, 6, and 9 are prototype coil antennas, 2, 4, 7, and 10 are small coil antennas, and 5, 8, and 11 are intermediate coil antennas.

Claims (5)

ほぼ矩形状をなし、１組の対向する２辺のうちの少なくとも一方の辺の中間に他方の辺に向って伸びる折り返し二重線部を形成してなるフレキシブルな非接触通信装置用コイルアンテナ。   A flexible coil antenna for a non-contact communication apparatus, which has a substantially rectangular shape and has a folded double line portion extending toward the other side in the middle of at least one of a pair of two opposing sides. ほぼ矩形状をなし、１組の対向する２辺の中間および残る１組の対向する２辺の中間に、それぞれ対向する辺に向って伸びる折り返し二重線部を形成してなるフレキシブルな非接触通信装置用コイルアンテナ。   Flexible non-contact that is formed in a substantially rectangular shape, and a folded double line portion extending toward the opposite sides is formed in the middle of one pair of two opposite sides and the remaining pair of two opposite sides. Coil antenna for communication devices. ほぼ矩形状に形成されたフレキシブルな原型コイルアンテナを、１組の対向する二辺の偶数箇所で折り返すことにより、前記原型コイルアンテナより小型で該原型コイルアンテナと同等の磁界強度を生成する小型コイルアンテナを形成するようにしたことを特徴とする非接触通信装置用コイルアンテナの製造方法。   A small coil that is smaller than the original coil antenna and generates a magnetic field intensity equivalent to that of the original coil antenna by folding back a flexible original coil antenna formed in a substantially rectangular shape at an even number of two opposing sides. A method of manufacturing a coil antenna for a non-contact communication device, wherein an antenna is formed. ほぼ矩形状をなし、１組の対向する２辺のうちの少なくとも一方の辺の中間に他方の辺に向って伸びる折り返し二重線部が形成されたフレキシブルな原型コイルアンテナにおいて、当該原型コイルアンテナの片側半分を残る片側半分に対して前記折り返し二重線部が直線状となるように１８０度回転させ、その後、前記原型コイルアンテナの前記片側半分を前記残る片側半分に重ねるように折り返すことによって前記原型コイルアンテナより小型で該原型コイルアンテナより強い磁界強度を生成する小型コイルアンテナを形成するようにしたことを特徴とする非接触通信装置用コイルアンテナの製造方法。   A flexible prototype coil antenna having a substantially rectangular shape, in which a folded double line portion extending toward the other side is formed in the middle of at least one of a pair of opposing sides. By rotating 180 degrees so that the folded double line portion is linear with respect to the remaining half, and then folding the half of the prototype coil antenna over the remaining half. A method of manufacturing a coil antenna for a non-contact communication apparatus, wherein a small coil antenna that is smaller than the prototype coil antenna and generates a magnetic field strength stronger than the prototype coil antenna is formed. ほぼ矩形状をなし、１組の対向する２辺の中間および残る１組の対向する２辺の中間に、それぞれ対抗する辺に向って伸びる折り返し二重線部が形成されたフレキシブルな原型コイルアンテナにおいて、当該原型コイルアンテナの片側半分を残る片側半分に対して前記２組の対向する２辺のうちの一方の組の対向２辺の前記折り返し二重線部が直線状となるように１８０度回転させ、その後、前記原型コイルアンテナの前記片側半分を前記残る片側半分に重ねるように折り返すことによって中間コイルアンテナを形成し、
前記中間コイルアンテナの片側半分を残る片側半分に対して前記２組の対向する２辺のうちの他方の組の対向２辺の前記折り返し二重線部が直線状となるように１８０度回転させ、その後、前記中間コイルアンテナの前記片側半分を前記残る片側半分に重ねるように折り返すことによって前記原型コイルアンテナより小型で該原型コイルアンテナより強い磁界強度を生成する小型コイルアンテナを形成するようにしたことを特徴とする非接触通信装置用コイルアンテナの製造方法。

A flexible prototype coil antenna having a substantially rectangular shape in which a folded double line portion extending in the middle of one pair of two opposing sides and the remaining pair of two opposing sides is formed to extend toward the opposing sides. , 180 degrees so that the folded double line portion of the two opposing sides of one set of the two sets of two opposing sides is linear with respect to the remaining one half of the original coil antenna Rotate, and then form an intermediate coil antenna by folding back one half of the prototype coil antenna over the remaining half
One half of the intermediate coil antenna is rotated 180 degrees so that the folded double line portion of the opposite two sides of the other two of the two sets of opposite sides is linear with respect to the remaining one half. Then, a small coil antenna that is smaller than the original coil antenna and generates stronger magnetic field strength than the original coil antenna is formed by folding the one half of the intermediate coil antenna so as to overlap the remaining half of the one side. A method for manufacturing a coil antenna for a non-contact communication device.

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Cited By (56)

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Publication number Priority date Publication date Assignee Title
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US7859480B2 (en) 2006-08-31 2010-12-28 Casio Hitachi Mobile Communications Co., Ltd. Antenna and portable electronic device
WO2011055702A1 (en) * 2009-11-04 2011-05-12 株式会社村田製作所 Wireless ic tag, reader/writer, and information processing system
US8336786B2 (en) 2010-03-12 2012-12-25 Murata Manufacturing Co., Ltd. Wireless communication device and metal article
US8400365B2 (en) 2009-11-20 2013-03-19 Murata Manufacturing Co., Ltd. Antenna device and mobile communication terminal
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US8531346B2 (en) 2007-04-26 2013-09-10 Murata Manufacturing Co., Ltd. Wireless IC device
US8544759B2 (en) 2009-01-09 2013-10-01 Murata Manufacturing., Ltd. Wireless IC device, wireless IC module and method of manufacturing wireless IC module
US8552870B2 (en) 2007-07-09 2013-10-08 Murata Manufacturing Co., Ltd. Wireless IC device
US8590797B2 (en) 2008-05-21 2013-11-26 Murata Manufacturing Co., Ltd. Wireless IC device
US8602310B2 (en) 2010-03-03 2013-12-10 Murata Manufacturing Co., Ltd. Radio communication device and radio communication terminal
US8613395B2 (en) 2011-02-28 2013-12-24 Murata Manufacturing Co., Ltd. Wireless communication device
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US8680971B2 (en) 2009-09-28 2014-03-25 Murata Manufacturing Co., Ltd. Wireless IC device and method of detecting environmental state using the device
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US8740093B2 (en) 2011-04-13 2014-06-03 Murata Manufacturing Co., Ltd. Radio IC device and radio communication terminal
US8757500B2 (en) 2007-05-11 2014-06-24 Murata Manufacturing Co., Ltd. Wireless IC device
US8770489B2 (en) 2011-07-15 2014-07-08 Murata Manufacturing Co., Ltd. Radio communication device
US8797225B2 (en) 2011-03-08 2014-08-05 Murata Manufacturing Co., Ltd. Antenna device and communication terminal apparatus
US8797148B2 (en) 2008-03-03 2014-08-05 Murata Manufacturing Co., Ltd. Radio frequency IC device and radio communication system
US8814056B2 (en) 2011-07-19 2014-08-26 Murata Manufacturing Co., Ltd. Antenna device, RFID tag, and communication terminal apparatus
US8847831B2 (en) 2009-07-03 2014-09-30 Murata Manufacturing Co., Ltd. Antenna and antenna module
US8853549B2 (en) 2009-09-30 2014-10-07 Murata Manufacturing Co., Ltd. Circuit substrate and method of manufacturing same
US8870077B2 (en) 2008-08-19 2014-10-28 Murata Manufacturing Co., Ltd. Wireless IC device and method for manufacturing same
US8878739B2 (en) 2011-07-14 2014-11-04 Murata Manufacturing Co., Ltd. Wireless communication device
US8905296B2 (en) 2011-12-01 2014-12-09 Murata Manufacturing Co., Ltd. Wireless integrated circuit device and method of manufacturing the same
US8917211B2 (en) 2008-11-17 2014-12-23 Murata Manufacturing Co., Ltd. Antenna and wireless IC device
US8937576B2 (en) 2011-04-05 2015-01-20 Murata Manufacturing Co., Ltd. Wireless communication device
US8944335B2 (en) 2010-09-30 2015-02-03 Murata Manufacturing Co., Ltd. Wireless IC device
US8976075B2 (en) 2009-04-21 2015-03-10 Murata Manufacturing Co., Ltd. Antenna device and method of setting resonant frequency of antenna device
US8981906B2 (en) 2010-08-10 2015-03-17 Murata Manufacturing Co., Ltd. Printed wiring board and wireless communication system
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US9024837B2 (en) 2010-03-31 2015-05-05 Murata Manufacturing Co., Ltd. Antenna and wireless communication device
US9024725B2 (en) 2009-11-04 2015-05-05 Murata Manufacturing Co., Ltd. Communication terminal and information processing system
US9104950B2 (en) 2009-01-30 2015-08-11 Murata Manufacturing Co., Ltd. Antenna and wireless IC device
US9117157B2 (en) 2009-10-02 2015-08-25 Murata Manufacturing Co., Ltd. Wireless IC device and electromagnetic coupling module
US9166291B2 (en) 2010-10-12 2015-10-20 Murata Manufacturing Co., Ltd. Antenna device and communication terminal apparatus
US9165239B2 (en) 2006-04-26 2015-10-20 Murata Manufacturing Co., Ltd. Electromagnetic-coupling-module-attached article
US9236651B2 (en) 2010-10-21 2016-01-12 Murata Manufacturing Co., Ltd. Communication terminal device
US9281873B2 (en) 2008-05-26 2016-03-08 Murata Manufacturing Co., Ltd. Wireless IC device system and method of determining authenticity of wireless IC device
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US9461363B2 (en) 2009-11-04 2016-10-04 Murata Manufacturing Co., Ltd. Communication terminal and information processing system
US9460320B2 (en) 2009-10-27 2016-10-04 Murata Manufacturing Co., Ltd. Transceiver and radio frequency identification tag reader
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US9727765B2 (en) 2010-03-24 2017-08-08 Murata Manufacturing Co., Ltd. RFID system including a reader/writer and RFID tag
US9761923B2 (en) 2011-01-05 2017-09-12 Murata Manufacturing Co., Ltd. Wireless communication device
US10013650B2 (en) 2010-03-03 2018-07-03 Murata Manufacturing Co., Ltd. Wireless communication module and wireless communication device
US10235544B2 (en) 2012-04-13 2019-03-19 Murata Manufacturing Co., Ltd. Inspection method and inspection device for RFID tag

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US9165239B2 (en) 2006-04-26 2015-10-20 Murata Manufacturing Co., Ltd. Electromagnetic-coupling-module-attached article
JP2008004604A (en) * 2006-06-20 2008-01-10 Tateyama Kagaku Kogyo Kk Wireless ic tag and its manufacturing method
US7859480B2 (en) 2006-08-31 2010-12-28 Casio Hitachi Mobile Communications Co., Ltd. Antenna and portable electronic device
US8424762B2 (en) 2007-04-14 2013-04-23 Murata Manufacturing Co., Ltd. Wireless IC device and component for wireless IC device
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US8876010B2 (en) 2009-04-14 2014-11-04 Murata Manufacturing Co., Ltd Wireless IC device component and wireless IC device
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