发明名称 Radio frequency identification devices with separated antennas
摘要 An RFID apparatus includes at least two antennas that are positioned to increase the maximum effective range of the RFID device. The RFID apparatus includes an RFID device, and the RFID device includes an antenna connected to a circuit having a transmitter. The second antenna is positioned relative to the RFID device to increase the MER of the RFID apparatus relative to conventional RFID devices while remaining separated (i.e. no direct physical contact) from the RFID device. In at least one embodiment, the second antenna is separated from the RFID device and positioned relative to the RFID device to induce a coupling of a signal to the RFID device. In at least one embodiment, the second antenna is positioned to overlay at least a portion of the circuit of the RFID device. In at least one embodiment, the RFID device is a passive-type RFID device.
申请公布号 US7786871(B2) 申请公布日期 2010.08.31
申请号 US20070752810 申请日期 2007.05.23
申请人 RADIANT RFID, L.L.C. 发明人 SCHWARZE STEPHAN;RUBIO-RATTON CYNTHIA C.;RATTON KENNETH L.
分类号 G08B13/14 主分类号 G08B13/14
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