【作者】 谢继杨； 黄自超； 杨阔； 丁霄； 杨宏春；

【Author】 Xie Jiyang;Huang Zichao;Yang Kuo;Ding Xiao;Yang Hongchun;Aba Teachers University;University of Electronic Science and Technology of China;

【机构】 阿坝师范学院； 电子科技大学；

【摘要】 设计了一种基于紧耦合结构的瞬态天线阵列。使用Vivaldi天线作为阵元以获得良好的时域特性。通过引入紧耦合结构,延长了阵元末端的电流路径。对辐射场及其对应频谱的研究表明,紧耦合结构显著提升了低频阻抗和辐射性能,使阵列的辐射场峰峰值合成效率达到111%。进一步研制了6×4规模阵列,其扫描角度可达±40°,验证了在瞬态领域实现宽角扫描的可行性。更多还原

【Abstract】 A transient antenna array based on a tightly coupled structure is proposed.Vivaldi antenna is employed as element to achieve superior transient characteristics.The introduced tightly coupled structure extends the current path at the element terminals,enhancing low-frequency performance.Analysis of the radiated field and its frequency spectrum reveals that the proposed design significantly improves impedance matching and radiation efficiency,yielding a peakto-peak field synthesis efficiency of 111%.A 6 × 4 prototype array is further developed, demonstrating a scanning capability of ±40°,which confirms the feasibility of wide-angle scanning in transient antenna systems.更多还原