北斗S频段圆极化微带振子天线阵的设计  

Design of Beidou S-band circular polarization microstrip dipole antenna array

作　　者：商锋 牛凡 SHANG Feng;NIU Fan(School of Electronic Engineering,Xi＇an University of Posts and Telecommunications,Xi＇an 710121,China)

机构地区：[1]西安邮电大学电子工程学院,陕西西安710121

出　　处：《电子设计工程》2018年第21期119-123,共5页Electronic Design Engineering

摘　　要：设计了一种应用于北斗一代导航系统的圆极化四元微带振子天线阵,通过对四个单元微带振子旋转90°的操作就可以形成天线阵,然后分别对每个振子单独馈电并使四个单元振子的馈电相位依次相差90°从而实现天线阵的圆极化,并且能够得到较好的轴比带宽。使用Ansoft HFSS 13对所提出的天线阵进行了仿真,仿真结果表明,天线阵在带宽内圆极化增益大于6 dBi,电压驻波比(VSWR)小于1.5,轴比小于3 dB。此天线阵可以应用于北斗一代S频段导航系统。In this paper,a circular polarization four-elements microstrip antenna array which applied to BD-I navigation system is designed,through the four units microstrip dipole rotate 90° operation can form antenna array,then separately for each dipole feed alone and make four units dipole feed phase are in turn 90° so as to realize the circular polarization antenna array and get the better axial ratio bandwidth.Ansoft HFSS 13 is used to simulate the antenna array,the simulation results show that the polarization gain of the antenna array in bandwidth is greater than 6 dBi,the VSWR is less than 1.5,the axial ratio is less than 3 dB.This atenna array can be used in the BD-I S frequency band navigation system.

关 键 词：天线阵 微带振子 轴比 北斗一代S频段 

分 类 号：TN82[电子电信—信息与通信工程]