JP2007523562A5 - - Google Patents
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- JP2007523562A5 JP2007523562A5 JP2006554089A JP2006554089A JP2007523562A5 JP 2007523562 A5 JP2007523562 A5 JP 2007523562A5 JP 2006554089 A JP2006554089 A JP 2006554089A JP 2006554089 A JP2006554089 A JP 2006554089A JP 2007523562 A5 JP2007523562 A5 JP 2007523562A5
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- conductive loops
- loops
- conductive
- rfid
- 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
Links
- 230000005672 electromagnetic field Effects 0.000 claims 1
Claims (3)
- 最大寸法Mを備える無線識別(RFID)タグに応答信号を送るアンテナ(13,30,60)であって、前記アンテナが、RFIDタグとRFID通信を行うための電磁界(90)を生成するための複数の導電ループ(32,34,32,64)を備えており、D≧Mの状態で全ての導電ループは少なくとも距離Dだけ離れており、
前記複数の導電ループが、内側ループと外側ループとを有する双ループ構造を形成しており、
前記複数の導電ループが、コモン電流が前記ループを流れるように電気的に結合されており、
前記複数の導電ループが、1つ以上の平行平面に配置されているとともに同軸トレースが形成されており、さらに前記複数の導電ループが、前記コモン電流が前記ループを同一方向に流れるように電気的に結合されているアンテナ。 - 前記複数の導電ループが単一のプリント回路基板内に形成されている請求項1に記載のアンテナ。
- 前記アンテナの周囲であって、前記アンテナに平行な面内に位置決めされた実質的に連続する導電性シールドをさらに備える請求項1に記載のRFIDシステム。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/784,124 US7417599B2 (en) | 2004-02-20 | 2004-02-20 | Multi-loop antenna for radio frequency identification (RFID) communication |
PCT/US2005/000435 WO2005081808A1 (en) | 2004-02-20 | 2005-01-07 | Multi-loop antenna for radio frequency identification (rfid) communication |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007523562A JP2007523562A (ja) | 2007-08-16 |
JP2007523562A5 true JP2007523562A5 (ja) | 2008-02-21 |
Family
ID=34911421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006554089A Pending JP2007523562A (ja) | 2004-02-20 | 2005-01-07 | 無線識別(rfid)通信用多重ループアンテナ |
Country Status (12)
Country | Link |
---|---|
US (1) | US7417599B2 (ja) |
EP (1) | EP1733332A1 (ja) |
JP (1) | JP2007523562A (ja) |
KR (1) | KR20060131905A (ja) |
CN (1) | CN1934576A (ja) |
AR (1) | AR047688A1 (ja) |
AU (1) | AU2005215971A1 (ja) |
BR (1) | BRPI0507832A (ja) |
CA (1) | CA2557453A1 (ja) |
NZ (1) | NZ549371A (ja) |
TW (1) | TW200536184A (ja) |
WO (1) | WO2005081808A1 (ja) |
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-
2004
- 2004-02-20 US US10/784,124 patent/US7417599B2/en not_active Expired - Fee Related
-
2005
- 2005-01-07 AU AU2005215971A patent/AU2005215971A1/en not_active Abandoned
- 2005-01-07 BR BRPI0507832-6A patent/BRPI0507832A/pt not_active IP Right Cessation
- 2005-01-07 JP JP2006554089A patent/JP2007523562A/ja active Pending
- 2005-01-07 KR KR1020067019267A patent/KR20060131905A/ko not_active Application Discontinuation
- 2005-01-07 NZ NZ549371A patent/NZ549371A/en unknown
- 2005-01-07 EP EP05705203A patent/EP1733332A1/en not_active Ceased
- 2005-01-07 CA CA002557453A patent/CA2557453A1/en not_active Abandoned
- 2005-01-07 CN CNA2005800090083A patent/CN1934576A/zh active Pending
- 2005-01-07 WO PCT/US2005/000435 patent/WO2005081808A1/en active Application Filing
- 2005-01-24 TW TW094102029A patent/TW200536184A/zh unknown
- 2005-02-18 AR ARP050100591A patent/AR047688A1/es unknown
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