超高频RFID天线设计技术研究

摘要

在RFID系统中,一个很重要的指标就是读写距离,影响读写距离的重要参数则是读写器天线和标签天线的设计.天线设计是RFID无线射频识别系统设计的关键部分,设计出合适的天线是确保系统正常通信的前提.从近场耦合天线的理论分析着手,通过实际RFID项目中的总结,结合实际RFID系统天线设计所需主要考虑的物理参量,并根据这些参量确定设计步骤.%In RFID system, the key index is the readable distance. The important parameters that affect the reading distance is those of RFID reader antenna and tag antenna performance. Antenna design is the key part of RFID system design. Designing an appropriate antenna is the precondition of insuring the normal communication. Proceeding from the theory of near field coupling, the physical parameters which should be taken into account in RFID design were designed.