RFID技术原理及其射频天线设计

Principle of RF Antenna and Design for RFID

首先简要介绍RFID技术的基本工作原理,说明射频天线是RFID系统设计的技术关键,然后介绍了几种基本的RFID射频天线及其工作原理,并针对普遍使用的偶极子天线在RFID系统中方向性上的不足提出改进,最后,给出一个具有全向收发功能的RFID天线设计.通过设计仿真工具模拟仿真,并进行实际样品测试,获得较满意的设计结果.

Antenna is the key part of the RFID (Radio Frequency IDentification) system.This paper introduces the principle of RFID system and its antennae,and designs an omni antenna for RFID system to improve the shortage of radiation pattern of traditional dipole antenna used in RFID system.The results of both simulation and measurement are identical.