| 摘要 |
A radio frequency identification (RFID) system includes a plurality of RFID tags addressable by a tag reader, with each tag comprising a RF antenna, an integrated circuit including a memory for identification data and coupled to the antenna, the integrated circuit being configured to have a first antenna load impedance when accessed by the tag reader and a second higher load impedance after access by tag reader whereby the tag switches to a low scattering state for a finite period of time to reduce scattering of signals from the tag reader.
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