发明名称 |
CUTOFF TRANSMISSION AND/OR RECEPTION ANTENNA |
摘要 |
The invention concerns an antenna for transmission and/or reception of electromagnetic waves (10) comprising a wire arranged in a coil in a plane, said coil comprising at least two turns; the antenna is characterised in that it comprises at least a cutoff (12) in order to reduce the capacitance between the turns. Such an antenna is used in a non-contact communication system wherein a reader transmits electromagnetic signals to a portable object (card or ticket) so as to be able to identify the owner of the portable object when the latter transmits back identification signals to said reader.
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申请公布号 |
WO0231911(A1) |
申请公布日期 |
2002.04.18 |
申请号 |
WO2001FR03135 |
申请日期 |
2001.10.11 |
申请人 |
ASK S.A.;MORAND, SEBASTIEN |
发明人 |
MORAND, SEBASTIEN |
分类号 |
H01Q1/22;H01Q1/38;H01Q7/00;H01Q9/04;H01Q9/27;H04B5/02;(IPC1-7):H01Q1/22 |
主分类号 |
H01Q1/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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