论文标题
无曲线RFID标签和BER性能的雷达横截面
Radar Cross Section of Chipless RFID tags and BER Performance
论文作者
论文摘要
根据雷达横截面（RCS）和位错误率（BER）分析了不同无曲线RFID标签拓扑的性能。结果表明，一旦考虑了标准的读取方案，并且选择了标签的固定尺寸，则BER主要由标签雷达横截面（RCS）确定。结果表明，无芯片标签中的谐振器的排列在确定标签的交叉极性RC中起着至关重要的作用。标签的RC是通过使用阵列理论来计算的，在理论上，每个谐振器都被视为一个单独的散点子，完全以特定的反射系数为特征。比较了几个谐振器布置（周期性和非周期性和非周期性），使标签的物理面积固定。理论和实验分析表明，周期性配置保证了最大可实现的RC，从而提供了无芯片RFID通信系统的全球较低BER。我们认为，BER是比较比特/CM2或BIT/HZ不同标签的性能更有意义，更公平的功能的数字，因为该标签的编码信息的增加仅在正确解码时才有用。
The performance of different chipless RFID tag topologies are analysed in terms of Radar Cross Section (RCS) and Bit Error Rate (BER). It is shown that the BER is mainly determined by the tag Radar Cross Section (RCS) once that a standard reading scenario is considered and a fixed size of the tag is chosen. It is shown that the arrangement of the resonators in the chipless tag plays a crucial role in determining the cross-polar RCS of the tag. The RCS of the tag is computed theoretically by using array theory where each resonator is treated as a separate scatterer completely characterized by a specific reflection coefficient. Several resonators arrangements (periodic and non-periodic) are compared, keeping the physical area of the tag fixed. Theoretical and experimental analysis demonstrate that the periodic configuration guarantees the maximum achievable RCS thus providing a global lower BER of the chipless RFID communication system. We believe that the BER is the more meaningful and fair figure of merit for comparing the performance of different tags than bit/cm2 or bit/Hz since the increase of encoded information of the tag is useful only if it can be correctly decoded.
