一种基于高阻表面的2.45 GHz频段读写器天线  

2.45 GHz-band reader antenna based on high-impedance surface

作　　者：宫海波[1,2] 武岳山[1,2] 刘奕昌[2] 

机构地区：[1]西北大学信息科学与技术学院,陕西西安710127 [2]深圳市远望谷信息技术股份有限公司,广东深圳518057

出　　处：《电子技术应用》2010年第11期110-113,共4页Application of Electronic Technique

摘　　要：2.45 GHz频段是RFID常用的频段之一。为了实现一款该频段的性能良好的天线,在改善缝隙耦合馈电天线结构的基础上,在天线设计中融入高阻表面型微波光子晶体结构。新颖的天线结构及有效的设计思路,使天线在保持高增益的情况下,在更宽的频带上具有更好的稳定性,同时也减小了天线的尺寸,使天线整体性能更加完善。2.45 GHz band is one of the bands which are commonly used in RFID. In order to achieve an antenna with good performance in this band, on the basis of improving the aperture-coupled feed antenna structure, we introduce a high-impedance surface of microwave photonic crystal structure in antenna design. By novel structure and effective design idea, the antenna can maintain a high gain and has a better stability in a wider band, the size of the antenna will be reduced at the same time, so that the overall performance of the antenna will be more perfect.

关 键 词：圆极化天线 缝隙耦合 高阻表面 

分 类 号：TN82[电子电信—信息与通信工程]