JP2011244363A - Antenna device - Google Patents

Antenna device Download PDF

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JP2011244363A
JP2011244363A JP2010116868A JP2010116868A JP2011244363A JP 2011244363 A JP2011244363 A JP 2011244363A JP 2010116868 A JP2010116868 A JP 2010116868A JP 2010116868 A JP2010116868 A JP 2010116868A JP 2011244363 A JP2011244363 A JP 2011244363A
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magnetic body
coil
connecting portion
terminal
antenna device
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JP5115585B2 (en
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Koichi Nakamura
浩一 中村
Shuichiro Yamaguchi
修一郎 山口
Munenori Fujiwara
宗範 藤村
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Panasonic Corp
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Panasonic Corp
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Priority to JP2010116868A priority Critical patent/JP5115585B2/en
Priority to US12/869,250 priority patent/US9153855B2/en
Priority to EP10174332.6A priority patent/EP2296228B1/en
Priority to CN2010205116285U priority patent/CN201898209U/en
Publication of JP2011244363A publication Critical patent/JP2011244363A/en
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Abstract

PROBLEM TO BE SOLVED: To provide an antenna device which eliminates limitation of direction when implementing in a communication device, without requiring an extra length of coil.SOLUTION: The antenna device comprises: a terminal 2a having a coupling part 4a which couples connection parts 3a, 3c which are provided in the vicinity of each of two corners at the ends of one side of ferrite 1; and a terminal 2b having a coupling part 4b which couples the connection parts 3b, 3d which are provided in the vicinity of each of two corners at the ends of the opposite side of the first side in the ferrite 1. One end of a coil 5 is connected to one of the connection parts 3a, 3c, and the other end of the coil 5 is connected to one of the connection parts 3b, 3d.

Description

本発明は、ＲＦ−ＩＤ、すなわちＩＣカードやＩＣタグ等の無線通信媒体との通信を行う無線通信媒体処理装置、あるいは無線通信媒体そのものに用いられるアンテナ装置に関するものである。   The present invention relates to a wireless communication medium processing apparatus that performs communication with a wireless communication medium such as an RF-ID, that is, an IC card or an IC tag, or an antenna apparatus used for the wireless communication medium itself.

近年、携帯電話等の携帯端末にＲＦ−ＩＤ用無線タグを内蔵したものや、非接触型ＩＣカードやＩＣタグを読み取る機能を搭載したものが普及してきている。この種の装置に用いられるアンテナ装置は、例えば特許文献１に記載されているように、フェライトシートにコイルを複数回、巻回して構成され、フェライトの角部付近に端子を備えたものが知られている。通常、端子はフェライトのそれぞれの角部付近に合計で４つ備えられ、そのうちの２つがコイルとその他の部分とを接続するために用いられている。なお、その他の端子はコイルに接続されずにアンテナ装置を安定して設置するために用いられる。   In recent years, mobile terminals such as mobile phones that have built-in RF-ID wireless tags and those that have a function of reading non-contact IC cards and IC tags have become widespread. An antenna device used in this type of device is known, for example, as described in Patent Document 1, in which a coil is wound around a ferrite sheet a plurality of times and a terminal is provided near the corner of the ferrite. It has been. Usually, a total of four terminals are provided near each corner of the ferrite, two of which are used to connect the coil and the other parts. The other terminals are used to stably install the antenna device without being connected to the coil.

特開２００４−１５９３４８号公報JP 2004-159348 A

フェライトの角部に端子を備える従来のアンテナ装置の概略構成図を図４、図５、図６に示し、とりわけアンテナ装置にコイルを巻回したものを図５および図６にそれぞれ示す。図４において、フェライト１に端子４１がフェライト１のそれぞれの角部に備えられている。図５の場合には、位置Ａにおける端子と位置Ｂにおける端子Ｂとがそれぞれコイル５に接続されている。この場合には、アンテナ装置が実装される通信装置のラインは位置Ａにおける端子および位置Ｂにおける端子それぞれ接続しなければならず、アンテナ装置の通信装置に対する設置の方向性に制限が生じてしまうという課題があった。また、逆に設置の制限から例えば、図６に示すように設置の制限から位置Ｂにおける端子と位置Ｃにおける端子とを通信装置のラインに接続させようとすると、コイル５を位置Ａの端子近傍部から位置Ｃの端子近傍部までわざわざ延ばして位置Ｃにおける端子に接続させる必要があり、コイル５に余分な長さを必要とするという課題があった。   4, 5, and 6 show schematic configuration diagrams of a conventional antenna device having terminals at the corners of the ferrite, and FIGS. 5 and 6 respectively show a coil wound around the antenna device. In FIG. 4, the ferrite 1 is provided with terminals 41 at the corners of the ferrite 1. In the case of FIG. 5, the terminal at position A and the terminal B at position B are each connected to coil 5. In this case, the line of the communication device on which the antenna device is mounted must be connected to each of the terminal at the position A and the terminal at the position B, which restricts the installation direction of the antenna device with respect to the communication device. There was a problem. On the other hand, for example, if the terminal at position B and the terminal at position C are to be connected to the line of the communication device due to installation restrictions as shown in FIG. There is a problem that the coil 5 needs to be extended from the portion to the vicinity of the terminal at the position C and connected to the terminal at the position C, and the coil 5 needs an extra length.

本発明は上記従来の課題に鑑みて為されたものであり、コイルに余分な長さを必要とせずに、通信装置に実装させる際の方向性の制限を無くしたアンテナ装置を得ることを目的とする。換言すれば、本発明によればアンテナ装置のフェライトの角部に備えられたどの端子と通信装置のラインと接続させても、通信装置のラインとコイルとを接続することができる。   The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide an antenna device that does not require an extra length of a coil and eliminates a restriction on directivity when mounted on a communication device. And In other words, according to the present invention, the line of the communication device and the coil can be connected to any terminal provided at the ferrite corner of the antenna device and the line of the communication device.

上記目的を達成するために、本発明は略直方体からなる磁性体と、該磁性体を巻回し２つの端部を備えるコイル部と、前記磁性体の一辺に位置する２つの角部近傍にそれぞれ備えられた第１の接続部とこれら第１の接続部を連結し、前記磁性体の一辺に沿って設けられた連結部を備えた第１の端子部と、前記磁性体の一辺と対向する対辺に位置する２つの角部近傍にそれぞれ備えられた第２の接続部とこれら第２の接続部を連結し、前記磁性体の対辺に沿って設けられた連結部を備えた第２の端子部とを有し、前記コイル部の一端は前記第１の接続部のいずれかに接続し、前記コイル部の他端は前記第２の接続部のいずれかに接続されるようにしたものである。   In order to achieve the above object, the present invention provides a magnetic body made of a substantially rectangular parallelepiped, a coil section wound with the magnetic body and having two ends, and two corners located on one side of the magnetic body. The first connecting portion provided and the first connecting portion are connected to each other, and the first terminal portion including the connecting portion provided along one side of the magnetic body is opposed to one side of the magnetic body. A second terminal provided with a second connecting portion provided in the vicinity of two corners located on opposite sides and the second connecting portion, and a connecting portion provided along the opposite side of the magnetic body And one end of the coil part is connected to one of the first connection parts, and the other end of the coil part is connected to one of the second connection parts. is there.

本発明によれば、コイルに余分な長さを必要とせずに、通信装置に実装させる際の方向性の制限のないアンテナ装置を得ることができる。つまり、アンテナ装置のフェライトの角部に備えられたどの端子と通信装置のラインと接続させても、通信装置のラインとコイルとを接続することができ、しかも各接続部はアンテナ装置に実装させる際の固定部として機能するので安定して設置できるアンテナ装置を得ることができる。   ADVANTAGE OF THE INVENTION According to this invention, the antenna apparatus without the restriction | limiting of the directivity at the time of mounting in a communication apparatus can be obtained, without requiring extra length for a coil. That is, any terminal provided at the corner of the ferrite of the antenna device can be connected to the line of the communication device, and the line of the communication device can be connected to the coil, and each connection portion is mounted on the antenna device. Therefore, an antenna device that can be installed stably can be obtained.

本発明の一実施例におけるアンテナ装置の概略構成図1 is a schematic configuration diagram of an antenna device according to an embodiment of the present invention. 本発明の一実施例におけるアンテナ装置の概略構成図1 is a schematic configuration diagram of an antenna device according to an embodiment of the present invention. 本発明の一実施例におけるアンテナ装置の概略構成図1 is a schematic configuration diagram of an antenna device according to an embodiment of the present invention. 本発明の従来例のアンテナ装置の概略構成図Schematic configuration diagram of a conventional antenna device of the present invention 本発明の従来例のアンテナ装置の概略構成図Schematic configuration diagram of a conventional antenna device of the present invention 本発明の従来例のアンテナ装置の概略構成図Schematic configuration diagram of a conventional antenna device of the present invention

本発明の第１の発明によれば、略直方体からなる磁性体と、該磁性体を巻回し２つの端部を備えるコイル部と、前記磁性体の一辺に位置する２つの角部近傍にそれぞれ備えられた第１の接続部とこれら第１の接続部を連結し、前記磁性体の一辺に沿って設けられた連結部を備えた第１の端子部と、前記磁性体の一辺と対向する対辺に位置する２つの角部近傍にそれぞれ備えられた第２の接続部とこれら第２の接続部を連結し、前記磁性体の対辺に沿って設けられた連結部を備えた第２の端子部とを有し、前記コイル部の一端は前記第１の接続部のいずれかに接続し、前記コイル部の他端は前記第２の接続部のいずれかに接続されるようにしたものである。これにより、コイルに余分な長さを必要とせずに、通信装置に実装させる際の方向性の制限のないアンテナ装置を得ることができる。   According to the first invention of the present invention, a magnetic body made of a substantially rectangular parallelepiped, a coil section wound with the magnetic body and having two ends, and two corners located on one side of the magnetic body, respectively. The first connecting portion provided and the first connecting portion are connected to each other, and the first terminal portion including the connecting portion provided along one side of the magnetic body is opposed to one side of the magnetic body. A second terminal provided with a second connecting portion provided in the vicinity of two corners located on opposite sides and the second connecting portion, and a connecting portion provided along the opposite side of the magnetic body And one end of the coil part is connected to one of the first connection parts, and the other end of the coil part is connected to one of the second connection parts. is there. As a result, an antenna device can be obtained which does not require an extra length for the coil and has no restriction on directivity when mounted on a communication device.

また、本発明の第２の発明によれば前記第１の接続部と前記第２の接続部はアンテナ装置を実装させる際の固定部として機能するようにしたものである。これにより、安定してアンテナ装置は通信装置等に設置されることができる。   According to the second aspect of the present invention, the first connection portion and the second connection portion function as a fixing portion when the antenna device is mounted. Thereby, the antenna device can be stably installed in a communication device or the like.

また、本発明の第３の発明によれば、略直方体からなる磁性体と、該磁性体を巻回し２つの端部を備えるコイル部と、前記磁性体の一辺に位置する２つの角部近傍にそれぞれ備えられた第１の接続部とこれら第１の接続部を連結し、前記磁性体の一辺に沿って設けられた連結部を備えた第１の端子部と、前記磁性体の一辺と対向する対辺に位置する２つの角部近傍にそれぞれ備えられた第２の接続部とこれら第２の接続部を連結し、前記磁性体の対辺に沿って設けられた連結部を備えた第２の端子部とを有し、前記コイル部の一端は一方の前記第１の接続部に接続し、前記コイル部の他端は他方の前記第１の接続部に接続されるとともに、前記第１の端子部の連結部を切断するようにしたものである。これにより、複数の接続部のうちどの接続部を用いても通信装置等のラインとコイルとを接続させることができ、とりわけ同一の端子部に属する接続部と通信装置等のラインとを接続することも可能になり、より設置の際の方向性を向上させてアンテナ装置を得ることができる。   According to the third aspect of the present invention, a magnetic body composed of a substantially rectangular parallelepiped, a coil section that is wound around the magnetic body and has two ends, and the vicinity of two corners that are located on one side of the magnetic body Each of the first connection portion provided in each of the first and second connection portions, and a first terminal portion including a connection portion provided along one side of the magnetic body; and one side of the magnetic body; A second connection part provided near each of the two corners located on opposite sides and the second connection part are connected to each other, and a second connection part provided along the opposite side of the magnetic body is provided. And one end of the coil portion is connected to one of the first connection portions, the other end of the coil portion is connected to the other first connection portion, and the first The connection part of the terminal part is cut off. Thereby, it is possible to connect the line such as the communication device and the coil regardless of which of the plurality of connection portions is used, and particularly connect the connection portion belonging to the same terminal portion and the line such as the communication device. It is also possible to improve the directionality at the time of installation and obtain the antenna device.

以下、本発明の実施例について図面を用いて説明する。図１は本発明の一実施例におけるアンテナ装置の概略構成図であり、コイルを巻回する前の状態を示す。１はフェライトで、略直方体の形状を有する。２ａおよび２ｂは端子でありフェライトの４つの角部近傍に接続されている。端子２ａおよび２ｂはそれぞれ位置ＡとＣおよび位置ＢとＤの間で電気的に接続されている。つまり、端子２ａは位置ＡおよびＣでフェライト１から外部に突出した接続部３ａおよび接続部３ｃとこれら接続部を互いに連結する棒状の連結部４ａからなる。連結部４ａはフェライト１の一辺に沿って設けられている。端子２ｂも端子２ａと同様の構成であり、フェライト１の一辺に対向する他辺に沿って設けられた連結部４ｂが接続部３ｂおよび３ｄを連結している。なお、各接続部３ａから３ｄはアンテナ装置が通信装置等に実装される際にアンテナ装置を通信装置等に固定する機能も有する。   Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram of an antenna device according to an embodiment of the present invention, and shows a state before a coil is wound. Reference numeral 1 denotes a ferrite having a substantially rectangular parallelepiped shape. Reference numerals 2a and 2b denote terminals which are connected in the vicinity of the four corners of the ferrite. Terminals 2a and 2b are electrically connected between positions A and C and positions B and D, respectively. That is, the terminal 2a includes a connecting portion 3a and a connecting portion 3c protruding from the ferrite 1 at positions A and C and a rod-like connecting portion 4a that connects these connecting portions to each other. The connecting portion 4 a is provided along one side of the ferrite 1. The terminal 2b has the same configuration as the terminal 2a, and a connecting portion 4b provided along the other side facing one side of the ferrite 1 connects the connecting portions 3b and 3d. Each of the connection portions 3a to 3d also has a function of fixing the antenna device to the communication device or the like when the antenna device is mounted on the communication device or the like.

図２および図３は本発明の一実施例におけるアンテナ装置の概略構成図であり図１のアンテナ装置にコイルを巻いた状態を示したものである。図２においてコイル５はその一端を端子２ａの位置Ａにある接続部３ａに接続し、他端を端子２ｂの位置Ｂにある接続部３ｂに接続している。端子２ａにおいて、接続部３ａと接続部３ｃが連結部４ａにより連結されているので端子２ａの接続部３ｃおよび端子２ｂの接続部３ｂはコイル５を介して互いに導通されている。従って、図２で示すようにコイル５を接続部３ａおよび３ｂに接続させたとしても通信装置のラインを端子２ａの位置Ｃにおける接続部３ｃおよび端子２ｂの位置Ｂにおける接続部３ｂと接続させることができる。図２で示すアンテナ装置の場合には通信装置の一方のラインを端子２ａの位置ＡあるいはＣにおける接続部３ａあるいは３ｃと接続することができ、他方のラインを端子２ｂの位置ＢあるいはＤにおける接続部３ｂあるいは３ｄと接続することができる。この結果、アンテナ装置を通信装置に実装する際に設置の方向性の自由度を向上することができる。   2 and 3 are schematic configuration diagrams of an antenna device according to an embodiment of the present invention, in which a coil is wound around the antenna device of FIG. In FIG. 2, one end of the coil 5 is connected to the connecting portion 3a at the position A of the terminal 2a, and the other end is connected to the connecting portion 3b at the position B of the terminal 2b. In the terminal 2a, since the connecting portion 3a and the connecting portion 3c are connected by the connecting portion 4a, the connecting portion 3c of the terminal 2a and the connecting portion 3b of the terminal 2b are electrically connected to each other via the coil 5. Therefore, even if the coil 5 is connected to the connection portions 3a and 3b as shown in FIG. 2, the line of the communication device is connected to the connection portion 3c at the position C of the terminal 2a and the connection portion 3b at the position B of the terminal 2b. Can do. In the case of the antenna device shown in FIG. 2, one line of the communication device can be connected to the connection portion 3a or 3c at the position A or C of the terminal 2a, and the other line is connected to the position B or D of the terminal 2b. It can be connected to the part 3b or 3d. As a result, when the antenna device is mounted on the communication device, the degree of freedom of installation can be improved.

図３は、通信装置のラインを一方の端子２ａのみに接続した場合を示す。コイル５は端子２ａの位置Ａにおける接続部３ａおよび位置Ｃにおける接続部３ｃにそれぞれ接続されている。一方、通信装置のラインも端子２ａの接続部３ａおよび接続部３ｃに接続されている。ここで、端子２ａが図２で示す状態のままであると、接続部３ａおよび接続部３ｃが互いに連結されているので導通されてしまう。このように通信装置のラインと一方の端子２ａのみとを接続したい場合には図３に示すように連結部４ａを切断すればよい。連結部４ａを切断さえすれば、アンテナ装置の一方側から通信装置のラインと接続させることができ、図２で示すアンテナ装置と同様にアンテナ装置を通信装置に実装する際に設置の方向性の自由度を向上させることができる。   FIG. 3 shows a case where the line of the communication device is connected to only one terminal 2a. The coil 5 is connected to the connecting portion 3a at the position A of the terminal 2a and the connecting portion 3c at the position C, respectively. On the other hand, the line of the communication device is also connected to the connection part 3a and the connection part 3c of the terminal 2a. Here, if the terminal 2a remains in the state shown in FIG. 2, the connection portion 3a and the connection portion 3c are connected to each other, and thus are brought into conduction. In this way, when it is desired to connect the line of the communication device and only one terminal 2a, the connecting portion 4a may be cut as shown in FIG. As long as the connecting portion 4a is cut, it can be connected to the line of the communication device from one side of the antenna device, and when the antenna device is mounted on the communication device like the antenna device shown in FIG. The degree of freedom can be improved.

なお、実際に通信装置に実装される際にはフェライト１および端子２ａ、２ｂを樹脂等で覆って用いられる。この際には樹脂より接続部３ａ、３ｂ、３ｃおよび３ｄの先端部のみが露出され通信装置のラインと接続される。   When actually mounted on a communication device, the ferrite 1 and the terminals 2a and 2b are covered with a resin or the like. At this time, only the tips of the connecting portions 3a, 3b, 3c and 3d are exposed from the resin and connected to the line of the communication device.

本発明のアンテナ装置によれば、通信装置に実装させる際に通信装置のラインと接続する端子を固定することなく自由に選択することができ、この結果、設置の際の方向性の自由度を向上させることができ、アンテナ装置を用いた通信装置に有用である。   According to the antenna device of the present invention, it is possible to freely select without fixing the terminal connected to the line of the communication device when the antenna device is mounted on the communication device. As a result, the degree of freedom in the direction of installation can be reduced. It can be improved, and is useful for a communication device using an antenna device.

１ フェライト
２ａ、２ｂ 端子
３ａ、３ｂ、３ｃ、３ｄ 接続部
４ａ、４ｂ 連結部
５ コイル DESCRIPTION OF SYMBOLS 1 Ferrite 2a, 2b Terminal 3a, 3b, 3c, 3d Connection part 4a, 4b Connection part 5 Coil

Claims (3)

略直方体からなる磁性体と、該磁性体を巻回し２つの端部を備えるコイル部と、前記磁性体の一辺に位置する２つの角部近傍にそれぞれ備えられた第１の接続部とこれら第１の接続部を連結し、前記磁性体の一辺に沿って設けられた連結部を備えた第１の端子部と、前記磁性体の一辺と対向する対辺に位置する２つの角部近傍にそれぞれ備えられた第２の接続部とこれら第２の接続部を連結し、前記磁性体の対辺に沿って設けられた連結部を備えた第２の端子部とを有し、前記コイル部の一端は前記第１の接続部のいずれかに接続し、前記コイル部の他端は前記第２の接続部のいずれかに接続されることを特徴とするアンテナ装置。 A magnetic body formed of a substantially rectangular parallelepiped, a coil section wound around the magnetic body and having two ends, a first connection section provided near each of two corners located on one side of the magnetic body, and the first 1 connection portion, a first terminal portion provided with a connection portion provided along one side of the magnetic body, and in the vicinity of two corners located on opposite sides facing one side of the magnetic body, respectively. One end of the coil portion, the second connecting portion provided, and a second terminal portion that connects the second connecting portion and includes a connecting portion provided along the opposite side of the magnetic body. Is connected to one of the first connection portions, and the other end of the coil portion is connected to one of the second connection portions. 前記第１の接続部と前記第２の接続部はアンテナ装置を実装させる際の固定部として機能することを特徴とする請求項１記載のアンテナ装置。 The antenna device according to claim 1, wherein the first connecting portion and the second connecting portion function as a fixing portion when the antenna device is mounted. 略直方体からなる磁性体と、該磁性体を巻回し２つの端部を備えるコイル部と、前記磁性体の一辺に位置する２つの角部近傍にそれぞれ備えられた第１の接続部とこれら第１の接続部を連結し、前記磁性体の一辺に沿って設けられた連結部を備えた第１の端子部と、前記磁性体の一辺と対向する対辺に位置する２つの角部近傍にそれぞれ備えられた第２の接続部とこれら第２の接続部を連結し、前記磁性体の対辺に沿って設けられた連結部を備えた第２の端子部とを有し、前記コイル部の一端は一方の前記第１の接続部に接続し、前記コイル部の他端は他方の前記第１の接続部に接続されるとともに、前記第１の端子部の連結部を切断するようにしたことを特徴とするアンテナ装置。 A magnetic body formed of a substantially rectangular parallelepiped, a coil section wound around the magnetic body and having two ends, a first connection section provided near each of two corners located on one side of the magnetic body, and the first 1 connection portion, a first terminal portion provided with a connection portion provided along one side of the magnetic body, and in the vicinity of two corners located on opposite sides facing one side of the magnetic body, respectively. One end of the coil portion, the second connecting portion provided, and a second terminal portion that connects the second connecting portion and includes a connecting portion provided along the opposite side of the magnetic body. Is connected to one of the first connecting portions, the other end of the coil portion is connected to the other first connecting portion, and the connecting portion of the first terminal portion is disconnected. An antenna device characterized by the above.
JP2010116868A 2009-08-28 2010-05-21 Antenna device Expired - Fee Related JP5115585B2 (en)

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JP2010116868A JP5115585B2 (en) 2010-05-21 2010-05-21 Antenna device
US12/869,250 US9153855B2 (en) 2009-08-28 2010-08-26 Antenna, antenna unit, and communication device using them
EP10174332.6A EP2296228B1 (en) 2009-08-28 2010-08-27 Antenna, antenna unit, and communication device using them
CN2010205116285U CN201898209U (en) 2009-08-28 2010-08-30 Antenna, antenna element and communication device using antenna and antenna element

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