| 摘要 |
A radio frequency identification (RFID) device comprising a transmitter on a first surface of a substrate, a receiver on the first surface of the substrate, a ground area on a second surface of the substrate, a first antenna on the first surface of the substrate, the first antenna being electrically connected to the ground area and capable of transmitting outgoing signals, and a second antenna on the first surface of the substrate, the second antenna being electrically connected to the ground area and capable of receiving incoming signals.
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