| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To increase the distance where the communication is made possible between a tag having a tag antenna and a reader having a reading antenna. <P>SOLUTION: An RFID bridge antenna is arranged between a tag 12 having a tag antenna 24 and a reader 14 having a reading antenna 30. The bridge antenna 10 includes two RF antenna elements 16 and 18 which are mutually estranged and mutually connected by an electric conductor 20. The first RF antenna element 18 is arranged in the vicinity of the tag antenna 24, while the second RF antenna element 16 is arranged in the vicinity of the reading antenna 30. The electromagnetism carrier signal transmitted by the reading antenna is received by the second RF antenna element 16. The electromagnetism carrier signal is retransmitted to the tag antenna 24 by the first RF antenna element 18. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
