一种多频段4G手机天线的优化设计  

Optimal design of a kind of multi-band 4G mobile phone antenna

作　　者：陈应辉[1] 曾文波[1] 

机构地区：[1]广西科技大学电气与信息工程学院,广西柳州545006

出　　处：《广西科技大学学报》2017年第3期92-96,共5页Journal of Guangxi University of Science and Technology

基　　金：广西自然科学基金项目(2015GXNSFAA139289)资助

摘　　要：基于单极子手机天线的原理,利用HFSS高频仿真软件优化设计了一款应用于4G手机的多频单极子平面天线.该天线由一个辐射臂和两个耦合枝节组成,通过U型与L型的折弯耦合枝节获得多频特性.在857 MHz^992 MHz和1 626 MHz^3 000 MHz频率范围内,所设计天线的回波损耗小于-6 dB并具有良好的方向图特性,能满足移动终端在多个4G频段的应用要求.此外,还对天线进行了参数分析,得到了影响天线阻抗特性的敏感尺寸参数,对该类天线的设计具有一定的指导意义.Based on the principle of monopole antenna, a novel planner antenna for 4G mobile phone is designed and optimized by using HFSS in this paper. The antenna consists of a radiation patch and two coupled branches, and the inverted L-shaped as well as a U-shaped coupled branch are introduced to achieve a multi-frequency characteristic. The return loss of proposed antenna is less than - 6 dB among the frequency bands of 857 MHz 992 MHz and 1 626 MHz - 3 000 MHz, which meets the requirements of 4G applications in multi-frequency bands. Parameter studies are carried out by HFSS to investigate the key sizes which affect the impedance characteristics of the proposed antenna, and the result may give guidance for the design of this kind of antenna.

关 键 词：手机天线 多频 平面天线 HFSS 

分 类 号：TN82[电子电信—信息与通信工程]