一种用于微波射频识别卡的圆极化微带天线  

A Circularly Polarized Patch Antenna for Microwave RFID Card

作　　者：岳喜成[1] 王文骐[1] 王媛媛[1] 

机构地区：[1]上海大学通信与信息工程学院,上海200072

出　　处：《微波学报》2003年第1期25-28,共4页Journal of Microwaves

基　　金：上海市科技发展基金资助项目 ( 995 114 0 2 1)

摘　　要：本文设计了一种用于微波非接触式射频识别卡的圆极化微带天线 ,采用AnsoftEnsemble7.0和Optimetrics模块分别进行仿真和优化 ,使输入、输出端口驻波比 ,左、右旋圆极化隔离度等参数满足系统性能要求。对加工的样品进行测试 ,结果显示 ,天线中心谐振频率为 5 .8GHz,左、右旋圆极化隔离度约 2 0dB ,天线有效方向角6 0° ,天线增益为 5dBi。This paper describes the design of a circularly polarized patch antenna for microwave non contact RFID card. Ansoft Ensemble 7.0 and Optimetrics TM 2.0 are employed for simulation and optimization. Through optimization, the system performance is found to meet the requirements, such as the isolation between LHCP and RHCP. The similar conclusion is obtained by measuring the products which were manufactured according to the optimized size.

关 键 词：贴片天线 射频识别 圆极化 馈电网络 IC卡 微波射频识别卡 微带天线 

分 类 号：TN821[电子电信—信息与通信工程]