Radar Cross Section of Chipless RFID Tags and BER Performance

The performance of different chipless RFID tag topologies are analysed in terms Radar Cross Section (RCS) and Bit Error Rate (BER). It is shown that the BER mainly determined by once a standard reading scenario considered fixed size chosen. arrangement resonators plays crucial role determining cross-polar RCS tag. computed theoretically using array theory where each resonator treated as separate scatterer completely characterized specific reflection coefficient. Several arrangements (periodic non-periodic) compared, keeping physical area fixed. Theoretical experimental analysis demonstrate periodic configuration guarantees maximum achievable thus providing global lower communication system. We believe more meaningful fair figure merit for comparing tags than bit/cm2 or bit/Hz since increase encoded information useful only if it can be correctly decoded.