基于超材料的多频微带天线的设计  

Design of Multi-frequency Microstrip Antenna based on Metamaterial

作　　者：万盛亚 王代强 罗双 WAN Sheng-ya;WANG Dai-qiang;LUO Shuang(College of Big Data and Information Engineering,Guizhou University,Guiyang 550025,China;School of Mechatronics Engineering,Guizhou Minzu University,Guiyang 550025,China)

机构地区：[1]贵州大学大数据与信息工程学院,贵阳550025 [2]贵州民族大学机械电子工程学院,贵阳550025

出　　处：《光通信研究》2021年第4期72-78,共7页Study on Optical Communications

基　　金：贵州省教育厅重大研究资助项目(黔教合KY字[2017]035);贵州省科技计划资助项目(黔科合成果[2020]2Y027、黔科中引地[2020]4009号);贵州民族大学基金资助项目(GZMU[2019]YB21)。

摘　　要：天线在通信系统中起着关键作用,但单一频段的天线已经无法满足如今的需求,因此多频天线的研究非常必要。文章提出了一种基于共面波导馈电的多频微带天线。该微带天线将刻蚀在基板导电表面的环形缝隙作为初始结构,之后在基板的不同位置加载电偶极子、超材料互补开口谐振环(CSRR)、交指电容加载环型谐振器(IDCLLR)及U形槽,从而实现微带天线的多频谐振。研究结果表明,天线能够同时在无线局域网(WLAN)波段(2.42~2.51 GHz)、全球微波互联网(WIMAX)波段(3.63~3.74、5.45~5.66 GHz)、卫星通信业务上行频(3.94~4.08 GHz)、国际移动通信系统(IMT-2020(5G))通信波段(4.84~4.98 GHz)、卫星通信业务下行频(5.88~6.24 GHz)和X波段(7.19~7.85 GHz)7个频段内谐振。使用网络分析仪对天线实物的回波损耗进行测试,测试结果与仿真结果基本吻合,具有良好的工程意义。Antennas play a key role in communication systems,but single-band antennas no longer meet today's needs.Therefore,the study of multi-band antennas is necessary.In this paper,a multi-band microstrip antenna based on coplanar waveguide feeding is proposed.The microstrip antenna consists of an annular slit etched on the conductive surface of the substrate as the initial structure.Then,electric dipole,metamaterial Complementary Split Ring Resonator(CSRR)with Inter-Digital Capacitance Loaded Loop Resonator(IDCLLR),and a U-shaped slot are loaded at different positions of the substrate to achieve multi-frequency resonance of microstrip antenna.The results show that the antenna is capable of operating simultaneously in the Wireless Local Area Network(WLAN)band(2.42~2.51 GHz),World Interoperability for Microwave Access(WIMAX)band(3.63~3.74,5.45~5.66 GHz),the uplink frequency for satellite communication services(3.94~4.08 GHz),International Mobile Telecom System(IMT-2020(5G))band(4.84~4.98 GHz),satellite communication service downlink frequency(5.88~6.24 GHz)and X-band(7.19~7.85 GHz)resonance in seven frequency bands.The return loss of the antenna is tested by vector network analyzer,and the test results are in good agreement with the simulation results,which has good engineering significance.

关 键 词：微带天线 多频 共面波导馈电 超材料 开槽 谐振 

分 类 号：TN822[电子电信—信息与通信工程]