摘要
采用镜像对称组阵的方式,设计了一款基于平行板波导的Ka频段新型连续断面节(Continuous Transverse Stub,CTS)阵列天线,具有天线剖面低、不频扫的特点;利用串馈CTS阵列天线归一化等效阵元的方式,在MATLAB中验证了方向图合成的有效性;通过镜像等幅馈电的方式,实现了天线在设计频段内方向图始终指向法向的目的。结果表明,采用该组阵方法的新型CTS阵列天线,在20.5~22 GHz频带范围内,S11<-12 dB,口径效率在65%以上,结构简单,易于加工,剖面高度低,易于携带和共形安装。
In this paper,a new type of CTS array antenna working in Ka band is designed by means of mirror symmetric array,which has the characteristics of low antenna profile and no frequency sweep.A series fed CTS array antenna with periodic structure is constructed to make the array an-tenna radiate to a specific angle in a specified frequency band.The method of normalized equivalent element of CTS array antenna is used to verify the effectiveness of the synthesis of the direction dia-gram in MATLAB.By mirroring constant amplitude feed,the purpose of the direction diagram of the antenna in the designed frequency band is always pointing to the normal direction.The results show that the new CTS array antenna with the proposed method has the advantages of simple structure,easy machining,low profile height,easy carrying and conformation installation in the frequency band of 21~22 GHz,with S11<-12 dB and the aperture efficiency over 65%.
作者
田思宇
雷雪
高峻
王克鑫
赵明洋
TIAN Siyu;LEI Xue;GAO Jun;WANG Kexin;ZHAO Mingyang(Information Engineering University,Zhengzhou 450001,China)
出处
《信息工程大学学报》
2023年第3期272-278,共7页
Journal of Information Engineering University
基金
国家自然科学基金资助项目(61602511)。
