JP4452782B2 - Rfidリーダ用多重ループアンテナ、これを有するrfidリーダ、及びこれを有するrfidシステム - Google Patents
Rfidリーダ用多重ループアンテナ、これを有するrfidリーダ、及びこれを有するrfidシステム Download PDFInfo
- Publication number
- JP4452782B2 JP4452782B2 JP2007000548A JP2007000548A JP4452782B2 JP 4452782 B2 JP4452782 B2 JP 4452782B2 JP 2007000548 A JP2007000548 A JP 2007000548A JP 2007000548 A JP2007000548 A JP 2007000548A JP 4452782 B2 JP4452782 B2 JP 4452782B2
- Authority
- JP
- Japan
- Prior art keywords
- rfid reader
- loop antenna
- rfid
- winding group
- parallel
- 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.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
- H04B5/24—Inductive coupling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
- H01Q7/04—Screened antennas
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
- G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
- G06K7/10316—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 using at least one antenna particularly designed for interrogating the wireless record carriers
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
- G06K7/10316—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 using at least one antenna particularly designed for interrogating the wireless record carriers
- G06K7/10336—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 using at least one antenna particularly designed for interrogating the wireless record carriers the antenna being of the near field type, inductive coil
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
- H01Q1/2216—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in interrogator/reader equipment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
- H01Q1/2225—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
- H01Q7/02—Collapsible antennas; Retractable antennas
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Toxicology (AREA)
- Health & Medical Sciences (AREA)
- Computer Networks & Wireless Communication (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Artificial Intelligence (AREA)
- Electromagnetism (AREA)
- General Health & Medical Sciences (AREA)
- Signal Processing (AREA)
- Near-Field Transmission Systems (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Description
本発明によるRFIDリーダ用多重ループアンテナは、少なくともN個(ここで、Nは3以上の整数であり、本実施例では3つである)の巻線グループ100、210、220が、V0の電圧を印加する第1電源入力端子410及び第2電源入力端子420を基準に互いに直並列に接続されている。
210 第1並列巻線グループ
220 第2並列巻線グループ
410 第1電源入力端子
420 第2電源入力端子
Claims (8)
- RFIDタグと電磁気誘導により情報を交換するためのRFIDリーダ用ループアンテナであって、
1回以上巻回された3つ以上の巻線グループを含み、
前記各巻線グループ中の一つはその一端が第1電源入力端子に連結され、残りは前記第1電源入力端子に連結された巻線グループの他端と第2電源入力端子との間で並列に接続されていることを特徴とするRFIDリーダ用多重ループアンテナ。 - 前記それぞれの巻線グループが全て同一方向に巻回されていることを特徴とする請求項1に記載のRFIDリーダ用多重ループアンテナ。
- 前記RFIDタグが物品の一部をなすことを特徴とする請求項1に記載のRFIDリーダ用多重ループアンテナ。
- 前記物品が携帯用物品であることを特徴とする請求項3に記載のRFIDリーダ用多重ループアンテナ。
- 前記それぞれの巻線グループが間隔をおいて設置されていることを特徴とする請求項1に記載のRFIDリーダ用多重ループアンテナ。
- 請求項1から請求項5のいずれかに記載の多重ループアンテナを含むRFIDリーダ。
- 請求項6のRFIDリーダとRFIDタグとを含むRFIDシステム。
- RFIDタグと電磁気誘導により情報を交換するためのRFIDリーダ用ループアンテナであって、
一端が第1電源入力端子に接続される第1巻線グループと、
一端が前記第1巻線グループの他端と、他端が第2電源入力端子と、の間で並列に連結される複数の第2巻線グループと、
を含むことを特徴とするRFIDリーダ用多重ループアンテナ。
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20060130804 | 2006-12-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2008160781A JP2008160781A (ja) | 2008-07-10 |
| JP4452782B2 true JP4452782B2 (ja) | 2010-04-21 |
Family
ID=39541978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007000548A Expired - Fee Related JP4452782B2 (ja) | 2006-12-20 | 2007-01-05 | Rfidリーダ用多重ループアンテナ、これを有するrfidリーダ、及びこれを有するrfidシステム |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20080150693A1 (ja) |
| JP (1) | JP4452782B2 (ja) |
| KR (1) | KR100965494B1 (ja) |
Families Citing this family (57)
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| US20090159709A1 (en) * | 2007-12-24 | 2009-06-25 | Dynamics Inc. | Advanced dynamic credit cards |
| JP5029371B2 (ja) * | 2008-01-08 | 2012-09-19 | パナソニック株式会社 | アンテナ装置およびその調整方法 |
| WO2010066955A1 (fr) | 2008-12-11 | 2010-06-17 | Yves Eray | Circuit d'antenne rfid |
| KR20110117119A (ko) | 2009-01-30 | 2011-10-26 | 도다 고교 가부시끼가이샤 | 자성체 안테나, rf 태그 및 상기 rf 태그를 실장한 기판 |
| US11476566B2 (en) | 2009-03-09 | 2022-10-18 | Nucurrent, Inc. | Multi-layer-multi-turn structure for high efficiency wireless communication |
| WO2011055702A1 (ja) * | 2009-11-04 | 2011-05-12 | 株式会社村田製作所 | 無線icタグ、リーダライタ及び情報処理システム |
| US8508342B2 (en) * | 2009-11-19 | 2013-08-13 | Panasonic Corporation | Transmitting / receiving antenna and transmitter / receiver device using the same |
| US8390516B2 (en) * | 2009-11-23 | 2013-03-05 | Harris Corporation | Planar communications antenna having an epicyclic structure and isotropic radiation, and associated methods |
| KR101255485B1 (ko) * | 2011-11-18 | 2013-04-16 | 한국과학기술원 | 역평행 공진 루프 및 역평행 공진 루프를 이용한 공진 루프 어레이 |
| FR2987904B1 (fr) * | 2012-03-07 | 2014-03-21 | Commissariat Energie Atomique | Dispositif d'evaluation de la distance entre une etiquette rfid et une interface |
| US9934895B2 (en) * | 2012-06-29 | 2018-04-03 | Intel Corporation | Spiral near field communication (NFC) coil for consistent coupling with different tags and devices |
| GB201212040D0 (en) | 2012-07-05 | 2012-08-22 | Cryogatt Systems Ltd | Box reader |
| KR20140051679A (ko) * | 2012-10-23 | 2014-05-02 | 삼성전자주식회사 | 근거리 무선통신 안테나 장치 및 이를 구비하는 휴대 단말기 |
| JP6463594B2 (ja) * | 2013-03-08 | 2019-02-06 | ニューカレント インコーポレイテッドNuCurrent, Inc. | 高効率の無線通信用多層ワイヤ構造 |
| US9293825B2 (en) * | 2013-03-15 | 2016-03-22 | Verifone, Inc. | Multi-loop antenna system for contactless applications |
| JP6030991B2 (ja) * | 2013-04-17 | 2016-11-24 | 日本電信電話株式会社 | 逆相二重ループアンテナ |
| DE102013109212B4 (de) * | 2013-08-26 | 2019-07-25 | Infineon Technologies Ag | RFID-Vorrichtung, RFID-Lesegerät, Portionsheißgetränkmaschine und System |
| DE102013112599A1 (de) * | 2013-11-15 | 2015-05-21 | Feig Electronic Gmbh | RFID-Antennenanordnung mit wenigstens einer RFID-Antenne sowie Verfahren zur Bestimmung eines Abstandes von wenigstens zwei Leiterschleifen einer RFID-Antenne einer RFID-Antennenanordnung |
| KR101595848B1 (ko) * | 2014-07-30 | 2016-02-23 | 한국철도기술연구원 | 트랜스폰더 위치 검출 장치 |
| FR3030908B1 (fr) * | 2014-12-18 | 2016-12-09 | Stmicroelectronics Rousset | Antenne pour dispositif electronique |
| JP6428354B2 (ja) * | 2015-02-19 | 2018-11-28 | 株式会社セガゲームス | 自動麻雀卓および遊技用卓 |
| US10511191B2 (en) * | 2015-07-09 | 2019-12-17 | Qualcomm Incorporated | Apparatus and methods for wireless power transmitter coil configuration |
| US11205848B2 (en) | 2015-08-07 | 2021-12-21 | Nucurrent, Inc. | Method of providing a single structure multi mode antenna having a unitary body construction for wireless power transmission using magnetic field coupling |
| US9948129B2 (en) | 2015-08-07 | 2018-04-17 | Nucurrent, Inc. | Single structure multi mode antenna for wireless power transmission using magnetic field coupling having an internal switch circuit |
| US10658847B2 (en) | 2015-08-07 | 2020-05-19 | Nucurrent, Inc. | Method of providing a single structure multi mode antenna for wireless power transmission using magnetic field coupling |
| US9941743B2 (en) | 2015-08-07 | 2018-04-10 | Nucurrent, Inc. | Single structure multi mode antenna having a unitary body construction for wireless power transmission using magnetic field coupling |
| US9941590B2 (en) | 2015-08-07 | 2018-04-10 | Nucurrent, Inc. | Single structure multi mode antenna for wireless power transmission using magnetic field coupling having magnetic shielding |
| US10636563B2 (en) | 2015-08-07 | 2020-04-28 | Nucurrent, Inc. | Method of fabricating a single structure multi mode antenna for wireless power transmission using magnetic field coupling |
| US9941729B2 (en) | 2015-08-07 | 2018-04-10 | Nucurrent, Inc. | Single layer multi mode antenna for wireless power transmission using magnetic field coupling |
| US10063100B2 (en) | 2015-08-07 | 2018-08-28 | Nucurrent, Inc. | Electrical system incorporating a single structure multimode antenna for wireless power transmission using magnetic field coupling |
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| CN113054400A (zh) * | 2021-03-23 | 2021-06-29 | 中国地质大学(武汉) | 一种用于石油井下工具控制的全向性rfid天线装置 |
| US11831174B2 (en) | 2022-03-01 | 2023-11-28 | Nucurrent, Inc. | Cross talk and interference mitigation in dual wireless power transmitter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20010044484A (ko) * | 2001-02-26 | 2001-06-05 | 노명래 | 스마트카드 |
| KR100604694B1 (ko) * | 2004-05-27 | 2006-07-24 | (주)제이티 | 무선 판독기용 병렬 급전 다중 루프 안테나 |
-
2007
- 2007-01-05 JP JP2007000548A patent/JP4452782B2/ja not_active Expired - Fee Related
- 2007-06-28 US US11/770,350 patent/US20080150693A1/en not_active Abandoned
- 2007-11-30 KR KR1020070123991A patent/KR100965494B1/ko active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2008160781A (ja) | 2008-07-10 |
| US20080150693A1 (en) | 2008-06-26 |
| KR20080058176A (ko) | 2008-06-25 |
| KR100965494B1 (ko) | 2010-06-24 |
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