一款适用于第四代移动通信的宽带偶极子天线  

Wideband dipole antenna for the fourth generation mobile communications

作　　者：金魁[1,2] 杨玉东[2] 左伟庆 戎星桦 陈光炜[3] 杨阳[1] 何小祥[1] 顾长青[1] 

机构地区：[1]南京航空航天大学电子信息工程学院,江苏南京210016 [2]淮阴工学院电子信息工程学院,江苏淮安223003 [3]普渡大学-西拉法叶电子与计算机工程学院,美国印第安州西接法叶47906

出　　处：《南京理工大学学报》2016年第4期410-414,共5页Journal of Nanjing University of Science and Technology

基　　金：江苏省普通高校研究生创新计划资助项目(CXLX11_0198);南京航空航天大学研究生创新项目(Kfjj20150414)

摘　　要：该文设计了一款可用于第四代（4G）移动通信的宽带偶极子天线。利用寄生微带线的阻抗加载,实现不平衡-平衡转换的巴伦;设计天线臂与巴伦之间的传输线,使其在阻抗匹配的同时能延展天线臂中辐射电流径程,产生新的谐振点,实现带宽扩展。2-3 GHz频带内仿真和实测回波损耗（S11）吻合较好,小于-10 d B频带覆盖4G的6个业务频段,频带内仿真和实测方向图也显著体现了偶极子天线良好的辐射特性。A wideband dipole antenna for the fourth generation （4G）mobile communications is designed. Utilizing impedance load of parasitic strips, a balun which can transform an unbalanced signal into a balanced signal is realized;transmission line between the antenna arms and the balun is designed to achieve the impedance matching; the radiation current path flowing in the arms is extended ;a new resonance point emerge and bandwidth of the antenna is widened. Simulated and experimental results of return loss（ S11 ）are in good agreement in 2 - 3 GHz, and the frequency range with S11 of below - 10 dB covers six service bands of 4G. Simulated and experimental results of radiation patterns within the frequency range also show a good radiation performance of the dipole antenna significantly.

关 键 词：巴伦 偶极子天线 微带传输线 第四代移动通信 

分 类 号：TN823[电子电信—信息与通信工程]