一种X波段正交极化偶极子天线阵设计  

Design of an X-band Orthogonal Polarized Dipole Antenna Array

作　　者：刘昂 李淑华 李宝鹏 高伟亮 张凯旋 LIU Ang;LI Shuhua;LI Baopeng;GAO Weiliang;ZHANG Kaixuan(Qingdao Branch of Naval Aeronautical University,Qingdao 266041 China)

机构地区：[1]海军航空大学青岛校区,山东青岛266041

出　　处：《电光与控制》2021年第5期85-88,共4页Electronics Optics & Control

摘　　要：为解决X波段机载雷达变极化速度较慢的问题,设计了一种可实现脉间变极化的偶极子天线阵。该天线阵采用正交排列薄片电偶极子阵元,并加装垂直贴片和反射板,通过同轴线耦合巴伦进行馈电。利用改造后的阵元组成了一个4×4的16元矩形栅格、矩形边界均匀平面正交极化天线阵,利用射频开关控制馈电线路实现快速变极化,通过高频结构仿真(HFSS)软件对其进行参数优化和建模仿真,结果显示,该天线阵具有较低的驻波比和副瓣电平以及较高的天线增益,可以作为机载正交极化相控阵雷达天线的参考设计,或用作正交极化阵列天线的子阵。In order to solve the problem of slow polarization changing of airborne radar a dipole antenna array is designed which can change the polarization between pulses.The antenna array uses orthogonal slice electric dipole array unit vertical strips and reflection board for realizing feed through coaxial coupling Balun.Then a 4×4 rectangular-grid rectangular-boundary uniform plane orthogonal polarized antenna array is formed by using the improved elements and fast polarization changing is realized by RF-MEMS switch.Then HFSS software is used for parameter optimization and modeling simulation.The results show that the antenna array has low standing-wave ratio low sidelobe level and high gain which can be used as a reference design for the antenna of the orthogonal polarization phased array radar or as a subarray of the orthogonal polarization array antenna.

关 键 词：机载雷达 天线阵列 X波段 偶极子天线 正交极化 

分 类 号：V243.2[航空宇航科学与技术—飞行器设计]