RFID TAG READ SYSTEM AND METHOD OF READING RFID TAG

摘要

A system and a method of reading an RFID(Radio Frequency Identification) tag are provided to arrange a first available area determined by first and second antennas and a second available area determined by a third antenna with a high degree of freedom by independently determining a relative position of the third antenna with respect to the first and second antennas. A system of reading an RFID tag includes a read device(10) and an antenna system. The read device outputs a question wave as high frequency current and demodulates an answer wave received as high frequency current to read data from the RFID tag. The antenna system has first to third antennas(11,12,13) which output the high frequency current when receiving an electromagnetic wave and radiate the electromagnetic wave when receiving the high frequency current. The first antenna is connected to the read device by a first feeder(F01). A radiation direction of the second antenna is opposite to that of the first antenna. The third antenna is connected to the second antenna by a second feeder(F23).