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作 者:习磊 王维婧 罗晓宇 王喜平 XI Lei;WANG Weijing;LUO Xiaoyu;WANG Xiping(The 39th Research Institute of China Electronics Technology Group Corporation,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三十九研究所,西安710065 [2]陕西省天线与控制技术重点实验室,西安710065
出 处:《微波学报》2024年第5期29-33,共5页Journal of Microwaves
摘 要:为适应多功能、一体化、集成化的应用需求,相控阵天线正朝着超宽带、小型化、轻量化方向发展。本文基于强耦合技术,设计了一种低剖面超宽带强耦合相控阵天线。天线单元由超表面宽角匹配层、辐射振子、Marchand馈电巴伦以及反射地板组成。通过偶极子双臂的上下层交叠实现强耦合效应。通过仿真设计,该强耦合天线在1.4 GHz~6 GHz频带内0°~50°扫描角度下天线的有源驻波均小于3.2,具有良好的阻抗匹配带宽。最后,对18×36规模的阵列天线进行测试,验证了实测与仿真结果一致。In order to satisfy the application requirements of multifunction and integration,the phased array antenna is developing towards ultra-wideband,miniaturization and lightweight.Based on the tightly coupled technology,a low-profile ultra-wideband tightly coupled phased array antenna is designed.The antenna unit consists of a metasurface wide-angle matching layer,a radiation dipole,a Marchand balun and a metal floor.The tightly coupled effect is realized by overlapping the upper and lower layers of the dipole arms.Through simulation,the active standing wave of the tightly coupled antenna is less than 3.2 at 0°~50°scanning angle in the 1.4 GHz~6 GHz band,which has a good impedance matching bandwidth.Finally,the 18×36 array antenna is tested,which verifies that the measured results are consistent with the simulation results.
分 类 号:TN821.8[电子电信—信息与通信工程]
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