JP2007166133A - 無線タグ - Google Patents
無線タグ Download PDFInfo
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- JP2007166133A JP2007166133A JP2005358629A JP2005358629A JP2007166133A JP 2007166133 A JP2007166133 A JP 2007166133A JP 2005358629 A JP2005358629 A JP 2005358629A JP 2005358629 A JP2005358629 A JP 2005358629A JP 2007166133 A JP2007166133 A JP 2007166133A
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Abstract
【解決手段】 波長の1/2以下のループ状のアンテナ部110を採用し、かつアンテナ近傍に反射板120とセラミック部121をはじめとする誘電体部材を基材112と垂直に配して、通信特性を良好にする。
【選択図】 図1
Description
図1は、本発明の無線タグを示す透過斜視図である。図2は、図1に示した本発明の無線タグの断面図(図1の正面から背面方向断面)である。
図10は、本発明による無線タグの実施例を示す透過斜視図である。さらに、図11は、本発明を示す図で、図10に示した無線タグ200の断面図(図10の正面から背面方向断面)である。無線タグ200の外形寸法は、縦15mm、横15mm、高さ12mmである。アンテナ部210は、ガラスエポキシからなる基材112上に、エッチングによって銅からなるアンテナ211を形成し、ICチップ213をワイヤボンディング実装し、アンテナ211と電気的に接続した。アンテナ211の1辺の長さは約10mmである。反射板220は鉄製の網を使用し、アンテナ部210とともに、ABSからなる成型樹脂223によって一体成型した。
図13は、従来技術による無線タグを示す斜視図であり、比較例として作製した。無線タグ300は、PET製の基材312上に、アルミニウムをエッチングして形成されたアンテナ311とICチップ213をフリップチップ実装で接合してなる。図14は、比較例を示す図で、無線タグ300を金属体に貼付したときの放射特性を示す。
110,210,310 アンテナ部
111,211,311 アンテナ
112,212,312 基材
113,213,313 ICチップ
120,220,320 反射板
121 セラミック部
122 接着部
124,125 両面テープ
130 缶
140 PETボトル
223 成型樹脂
226 ネジ
350 スペーサ
Claims (2)
- 基材上に少なくとも1以上のICチップとアンテナを有する無線タグであって、前記アンテナは1ターンのループアンテナであり、該ループアンテナのループの長さは、無線周波数の波長の1/2以下であり、前記ループアンテナの近傍に、前記基材と垂直となるよう導電体を配してなることを特徴とする無線タグ。
- 前記ICチップとアンテナを有する基材を誘電体部材で被覆してなることを特徴とする請求項1記載の無線タグ。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005358629A JP4560480B2 (ja) | 2005-12-13 | 2005-12-13 | 無線タグ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005358629A JP4560480B2 (ja) | 2005-12-13 | 2005-12-13 | 無線タグ |
Publications (2)
Publication Number | Publication Date |
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JP2007166133A true JP2007166133A (ja) | 2007-06-28 |
JP4560480B2 JP4560480B2 (ja) | 2010-10-13 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2005358629A Active JP4560480B2 (ja) | 2005-12-13 | 2005-12-13 | 無線タグ |
Country Status (1)
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JP (1) | JP4560480B2 (ja) |
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US9460320B2 (en) | 2009-10-27 | 2016-10-04 | Murata Manufacturing Co., Ltd. | Transceiver and radio frequency identification tag reader |
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US8814056B2 (en) | 2011-07-19 | 2014-08-26 | Murata Manufacturing Co., Ltd. | Antenna device, RFID tag, and communication terminal apparatus |
US9543642B2 (en) | 2011-09-09 | 2017-01-10 | Murata Manufacturing Co., Ltd. | Antenna device and wireless device |
US8905296B2 (en) | 2011-12-01 | 2014-12-09 | Murata Manufacturing Co., Ltd. | Wireless integrated circuit device and method of manufacturing the same |
US8720789B2 (en) | 2012-01-30 | 2014-05-13 | Murata Manufacturing Co., Ltd. | Wireless IC device |
US9692128B2 (en) | 2012-02-24 | 2017-06-27 | Murata Manufacturing Co., Ltd. | Antenna device and wireless communication device |
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