中文摘要：

针对工作在微波频段的RFID系统的要求，提出了一种双频分形微带天线．天线工作的中心频率分别为915MHz和2．45GHz，采用Vicsek分形结构．仿真结果表明，天线具有良好的性能，保证了理想的回波损耗，满足了RFID天线的要求．实现了天线的小型化、宽频带的要求，有较好的应用前景．

英文摘要：

According to work in microwave band of RFID system requirements, this paper presented a double - band fractal microstrip antenna. This antenna adopted Vicsek fractal structure met with 915 MHz and 2.45 GHz. Simulation result showed that antenna had good performance and ideal loss band width, and met the requirement of RFID system. This antenna had great potential in practical application.