RFID系统的串扰分析及消除

Analysis and Elimination of Crosstalk in RFID Systems

阅读器(Reader)、上位机和电子标签(Electronic Tag)组成的庞大的RFID电路系统,必然导致信号完整性(SI)和电磁兼容(EMC)等问题越来越突出,就RFID系统EMC中的串扰问题产生的机理和影响因素,运用Allgro PCB SI仿真软件分析其抑制和改善的方法并对串扰进行仿真,通过拉大线距、减小介质层厚度、增加端接等方法,分析其对串扰的影响,从而使系统的串扰最小。

Readers, the host computers and electronic tags form a large RFID circuit system, inevitably causing problems of signal integrity （SI） and electromagnetic compatibility （ EMC ） issues are increasingly prominent. On the issues of crosstalk producing mechanism and influencing factors in RFID systems, the Allgro PCB SI simulation software was used to simulate crosstalk and to analyse the suppressing and improving methods. By methods of widening the interconnects distance, reducing the dielectric layer thickness, and adding head joint minimum crosstalk was achieved, and these methods how to influence crosstalk were also analvzed.