专利名称：RFID TAG READ ANTENNA UNIT发明人：SHIMAMOTO GAKU,KUWAKO
YUUJI,MATSUMOTO NAOTO,TABATAMASARU,SATOU MASAAKI,KASHIHARATATSUKI
申请号：EP09797838申请日：20090706公开号：EP2306369A4公开日：20121003
摘要：An antenna unit includes a plurality of loop antennas; an impedance matchingcircuits common to the loop antennas; a switching circuit that switches high frequencyconnection between the impedance matching circuit and the loop antenna; and anantenna control circuit that controls to connect only one sloop antenna among the loopantennas in a high frequency manner on the basis of a control signal from a reader.
申请人：SANDEN CORPORATION
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