一种超宽带宽角扫描紧耦合相控阵天线设计  

Design of an Ultra-wideband Wide-Angle Scan Tightly Coupled Phased Array Antenna

作　　者：习磊 李桂红 洪玮 王珂[1,2] Xi Lei;Li Guihong;Hong Wei;Wang Ke(No.39 Research Institute of CETC,Xi'an 710065 China;Shaanxi key Laboratory of Antenna and Control Technology,Xi'an 710065,China)

机构地区：[1]中国电子科技集团公司第39研究所,西安710065 [2]陕西省天线与控制技术重点实验室,西安710065

出　　处：《测控与通信》2020年第3期14-17,28,共5页

摘　　要：为满足相控阵天线超宽带宽角扫描的需求,设计了1种介质微带线结构的双极化Vivaldi紧耦合阵列天线。利用紧耦合以及Floquet无穷周期边界原理,实现了四倍频的有源阻抗匹配和宽角扫描设计,最后﹐对超宽带宽角扫描阵列进行仿真设计和优化。所设计的阵列天线不仅具有重量轻|体积小、易加工、尺寸一致性好等优点,还具有低栅瓣、低扫描波束损失等优势,在超宽带宽角扫描相控阵应用方面有良好的应用前景。A dual-polarized Vivaldi tightly coupled array antenna in form of microstrip is designed to meet the requirements of wideband and wide spatial phased array.Good active impedance matching of 4 octaves and low grating lobes are realized by utilizing tightly coupled array and floquet infinite periodic boundary theories.Simultaneously,scan beam losses are reduced.Finally,the array is designed and optimized in simulation.The array antennas have the advantages of light weight,small size,easy fabrication and good dimensional uniformity with an excellent application prospect in the application of UWB wide spatial phased array.

关 键 词：相控阵天线 超宽带 宽角扫描 Vivaldi阵列天线 紧耦合原理 

分 类 号：TN9[电子电信—信息与通信工程]