MULTIPLE LOOP ANTENNA FOR RFID READER, RFID READER HAVING SAME AND RFID SYSTEM HAVING THE RFID READER, AND MULTIPLE LOOP ANTENNA FOR RFID TAG

摘要

A multiple loop antenna for an RFID(Radio Frequency IDentification) reader, an RFID reader having the same, an RFID system having the RFID Reader, and a multiple loop antenna for an RFID tag are provided to implement stable transmission and reception for change of a resonance characteristic according to approach of a portable object to the antenna. A multiple loop antenna for an RFID reader exchanges information through an RFID tag and electromagnetic induction and includes at least one series winding group(100) and a plurality of parallel winding groups(210,220). One end of at least one series winding group is connected to a first power input terminal(410). One end of the parallel winding group is connected to the other end of the series winding group and the other end thereof is connected to a second power input terminal(420).