RFID Radar
RFID-radar is one of the most advanced RFID systems available in the world. Besides identifying RFID transponders in its zone, the RFID-radar system is able to measure the range and direction of those transponders from the reader antennas.For those wanting to experiment with this new technology, Trolley Scan have provided a starter system comprising a reader, 3 Yagi antennas and 20 transponders. The system operates at UHF frequencies in the bands allocated for RFID, using electric coupled propogation properties to transfer energy from the reader to the transponder and from the transponder back to the reader. The RFID-radar measures the path length for signals travelling from the transponder to the reader to determine range.