发明名称 Antenna array for an RFID reader compatible with transponders operating at different carrier frequencies
摘要 An antenna array is provided for an RFID reader, which includes a first reader antenna tuned to operate at a first frequency and a second reader antenna tuned to operate at a second frequency different from the first frequency. The first and second antennas are preferably arranged in an overlapping arrangement or an opposing magnetic flux arrangement to reduce the effect of antenna self resonance.
申请公布号 US2005258966(A1) 申请公布日期 2005.11.24
申请号 US20040016576 申请日期 2004.12.16
申请人 QUAN RALPH W 发明人 QUAN RALPH W.
分类号 G06K7/08;(IPC1-7):G08B13/14 主分类号 G06K7/08
代理机构 代理人
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