超宽带Vivaldi天线单元及阵列设计  

Design of Ultra-Wideband Wide-angle Scanning Vivaldi Antenna and Array

作　　者：史信荣[1] 史劼 熊洋洋[1] 柯进[1] 罗旭东[1] SHI Xin-rong;SHI Jie;XIONG Yang-yang;KE Jin;LUO Xu-dong(Guangdong Institute of Metrology,Guangdong Provincial Key Laboratory of Modern Geometric and Mechanical Metrology Technology,Guangzhou 510405,China;China Academy of Industrial Internet,Beijing 100036,China)

机构地区：[1]广东省计量科学研究院广东省现代几何与力学计量技术重点实验室,广东广州510405 [2]中国工业互联网研究院,北京100110

出　　处：《中国电子科学研究院学报》2020年第11期1065-1069,共5页Journal of China Academy of Electronics and Information Technology

基　　金：国家市场监管总局技术保障专项资助项目(2019YJ031)。

摘　　要：文中设计了一种新型超宽带平衡对跖Vivaldi天线单元和阵列。研究分析了主要结构参数对天线性能的影响,通过增加金属隔板、接地柱、减小天线剖面高度等方式,将天线单元的阻抗带宽由1.7个倍频程提升至5个倍频程。该新型天线单元具有阻抗带宽较宽、结构尺寸小的特点,是一种较为理想的超宽带阵列天线单元。在单元优化的基础上,文中对8×8的超宽带天线阵列性能进行了研究,结果表明该天线阵列具有良好的阻抗带宽和辐射性能。A novel ultra-wideband( UWB) balanced antipodal Vivaldi antenna element and array with wide-angle scanning is designed. The influence of the main structural parameters on the antenna performance is analyzed. The impedance bandwidth of the antenna element is improved from 1. 7 octaves to 5 octaves by adding metallic partitions,metallic poles and reducing the height of the antenna. The novel antenna element not only has a wide impedance bandwidth,but also a smaller structure size. The length and width of the antenna element is only half of the wavelength corresponding to the highest frequency. It is an ideal UWB wide-angle scanning array antenna element. On the basis of element optimization,the performance of 8 × 8 UWB array is studied. The results show that the array has a wide impedance bandwidth and good radiation performance.

关 键 词：超宽带 VIVALDI天线 平衡对跖 

分 类 号：TN98[电子电信—信息与通信工程]