宽频带印刷振子型基站天线的设计  

Design of Broadband Printed Dipole Base Station Antenna

作　　者：秦冬梅[1] 徐令彬 QIN Dongmei XU Lingbin(College of Information, Shanxi Agricultural University, Taigu 030800, China Taiyuan Reserve Service Group, Taiyuan 030023, China)

机构地区：[1]山西农业大学信息学院,山西太谷030800 [2]太原预备役通信团,山西太原030023

出　　处：《测试技术学报》2016年第6期507-511,共5页Journal of Test and Measurement Technology

摘　　要：本文首先提出了一种基于DSPSL结构的印刷振子天线单元,天线振子的两臂对称地印制在介质基板上下表面并采用渐变结构的双面平行带线进行馈电,这种结构具有良好的宽带特性.其次,以该天线辐射单元为阵元,设计了一款8单元直线型天线阵并添加了反射板,随后对阵列天线进行了仿真.仿真结果显示,该天线的工作频率范围为1.71~2.67GHz,最大增益为17.2dBi.此外,阵列天线的水平面半功率波束宽度为64.7°,前后比大于28dBi,满足农村地区移动通信系统对于基站天线的指标要求.This paper presented a printed dipole antenna unit based on DSPSL structure.The arms of the antenna element are printed symmetrically in the upper and lower surfaces of the dielectric substrate and fed by double-sided parallel strip lines of gradually changed structure.This substructure makes the antenna has a wide bandwidth.Then,based on that the antenna radiation unit as array element,a linear array with 8element is designed and the reflector is added,latter a simulation of the array is done.The results show the proposed antenna can work in 1.71GHz^2.67 GHz with the maximum gain of 17.2dBi.In addition,the half-power beamwidth of array antenna in the horizontal plane is 64.7°and the front-back ratio is greater than 28 dBi.This array can meet the requirements of a mobile communication system for rural areas.

关 键 词：基站天线 宽带 印刷振子天线 

分 类 号：TN828.6[电子电信—信息与通信工程]