基于零阶谐振超材料的新型LTE智能手机天线设计  

LTE smartphone antenna design based on zeroth-order resonant metamaterials

作　　者：李龙[1,2] 贾珍[1,2] 

机构地区：[1]西安电子科技大学电子工程学院,西安710071 [2]西安电子科技大学天线与微波技术国防科技重点实验室,西安710071

出　　处：《中国科学：信息科学》2015年第9期1169-1178,共10页Scientia Sinica(Informationis)

基　　金：国家自然科学基金(批准号:51477126);陕西省自然科学基础研究计划重点项目(批准号:2013JZ019);中央高校基本科研业务费专项重点基金(批准号:K5051202051);国家公派高级研究学者项目(批准号:201208610177)资助

摘　　要：基于目前无线通信系统快速发展的背景针对下一代智能手机终端天线小型化、高性能、多频带发展的迫切需求,以复合左右手传输线理论为基础,设计了一款覆盖LTE频段的新型智能手机终端天线.通过应用零阶谐振原理在天线设计中加载等效左手电容、左手电感结构和引入地回路电流的方法,实现了天线的小型化、高性能设计.该天线工作频带覆盖LTE747/GSM850/900/DCS1800/PCS1900/UMTS/LTE2300/2600,具有较好的辐射特性、较高的辐射效率和增益,能够满足LTE智能移动终端的设计要求.本文对该天线的工作特性给出了详细分析,同时进行了加工测量.实测结果显示,加工的天线与仿真结果吻合,该零阶谐振超材料天线具有小型化和高性能的优点.With the rapid development of next-generation wireless communication systems, a novel smart mobile phone antenna covering Long-Term Evolution （LTE） bands is proposed based on the theory of composite rightand left-handed （CRLH） transmission lines, which can be used to design a miniaturized and multi-band antenna. In this paper, the theory of zeroth-order resonance （ZOR） is particularly recommended for antenna design to produce the equivalent left-handed capacitor and left-handed inductor. In the meantime, the ground current is also used to achieve miniaturization. The proposed ZOR metamaterial antenna can cover LTE747/GSM850/900 and DCS1800/ PCS1900/UTMS/LTE2300/2600; further, it provides the performance benefits of an effective ra- diation pattern, as well as high gain and high efficiency, which can meet the requirements of a LTE smart mobile phone. The performance impact of the proposed antenna＇s operating characteristics is also analyzed. The measured results of the fabricated antenna are in good agreement with the simulated antenna. They confirm that the fabricated ZOR metamaterial antenna offers the advantages of miniaturization and good performance.

关 键 词：超材料天线 复合左右手传输线 零阶谐振 小型化 多频带 LTE 

分 类 号：TN929.53[电子电信—通信与信息系统]