基于平面印刷偶极子的测向天线设计  

Design of Direction Finding Antenna Based on Planar Printed Dipole

作　　者：张则伟[1] 叶建意[1] 杨咏明 ZHANG Ze-wei;YE Jian-yi;YANG Yong-ming(No.36 Research Institute of CETC,Jiaxing Zhejiang 314033,China)

机构地区：[1]中国电子科技集团公司第三十六研究所,浙江嘉兴314033

出　　处：《通信对抗》2021年第3期36-39,47,共5页Communication Countermeasures

摘　　要：提出了一种基于平面印刷偶极子的宽带全向天线,利用印制板覆铜层的平面型辐射结构和渐变型平衡-不平衡馈电方式,通过电磁仿真软件进行参数优化,设计了工作频段为0.8~3GHz的全向偶极子测向天线,并进行了实物加工和测量。结果表明,天线单元最大驻波小于4.5,其中1~3GHz驻波小于3.5,天线单元水平面增益为0~4dBi,由其组成的五元圆阵的测向均方根误差优于1.5°,实测与仿真具有较好的一致性。该测向天线具有频段宽、制作简单、单元一致性好的特点。In this paper,a broadband omnidirectional antenna based on planar printed dipole is proposed.Using the planar radiation structure of copper-clad PCB and the gradual balanced-unbalanced feeding mode,the parameters of the antenna are optimized by electromagnetic simulation software.The omnidirectional dipole direction finding antenna with working frequency range of 0.8~3GHz is designed,processed and measured.The results show that the maximum standing wave of the element antenna is less than 4.5,among which the standing wave of 1~3GHz is less than 3.5,the horizontal gain of the element antenna is O~4dBi,and the direction finding RMS accuracy of the five element circular array is less than 1.5o.The measurement and simulation are in good agreement.The direction finding antenna has the characteristics of wide frequency band,simple fabrication and good batch consistency.

关 键 词：印刷偶极子 宽带天线 测向天线 测向圆阵 

分 类 号：TN827.4[电子电信—信息与通信工程]