宽带透射阵设计及其近场研究  

Design of Broadband Transmitarray and Its Near-Field Research

作　　者：张岩[1] 赵超超 贾田扬 ZHANG Yan;ZHAO Chaochao;JIA Tianyang(Beihang University,Beijing 100191,China;Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100094,China)

机构地区：[1]北京航空航天大学,北京100191 [2]中国科学院空天信息创新研究院,北京100094

出　　处：《中兴通讯技术》2022年第3期40-45,共6页ZTE Technology Journal

基　　金：国家重点研发计划(2020YFB1807400);国家重点基础研究计划(2019-JCJQ-ZD-067-00);深圳市中央财政引导地方科技发展基金(2021Szvup081)。

摘　　要：提出并设计了一种基于紧耦合偶极子的宽带透射阵天线,该透射阵天线由宽带馈源天线和宽带透射型超表面两部分组成。馈源是经过改进设计的超宽带Vivaldi天线;宽带透射型超表面包括30×15个单元结构,每个单元结构由紧耦合偶极子天线和平行双导线组成。引入等效延迟距离的概念用于设计透射阵,并对其菲涅尔区电场进行研究。A wideband transmitarray antenna based on tightly coupled dipole is proposed in this paper.The transmitarray antenna is com⁃posed of a wideband feed antenna and a wideband transmission metasurface.The feed is an improved ultrawide band Vivaldi antenna.The wideband transmission metasurface consists of 30×15 cells,each of which consists of a tightly coupled dipole antenna and parallel metal lines.The concept of equivalent delay distance is introduced to design the transmitarray and its Fresnel zone electric field is investigated.

关 键 词：电磁超表面 透射阵天线 宽带天线 菲涅尔区 

分 类 号：TN822.8[电子电信—信息与通信工程]