一种V波段涡旋电磁波反射阵天线
A V-band Oam Reflection Array Antenna
陈楠祺 1王鑫 1晏阳栋 1张珂 1张翔 1陈山1
作者信息
- 1. 中国兵器工业集团第二一二研究所,陕西 西安 710065
- 折叠
摘要
为了满足无线电近感探测需求,提出一种基于反射型超表面的V波段涡旋电磁波产生方法,设计了一款具有正馈结构的涡旋电磁波反射阵天线,馈源采用标准增益喇叭天线.提出的新型线极化超表面单元为双层结构,两层方形贴片分别印刷在两个介质板的上层,金属地板印刷在下层介质板的底层.仿真结果表明,在60 GHz频点得到的电场相位在正方形相位参考面上具有清晰的+1模态涡旋相位分布特征,且中心存在相位奇点.对实物样机的实验室测试结果表明,天线近场辐射波以及天线照射钢板后反射波的电场相位同样具有涡旋相位分布特征.
Abstract
In order to meet the needs of radio proximity detection,an vortex electromagnetic waves generation method based on reflective metasurface was proposed.A reflective metasurface antenna was designed with posi-tive feed structure,the feed source adopts standard gain horn antenna.A novel metasurface unit was designed with linear polarization,the unit was of two-layer structure,two square patches were printed on the upper layer of two dielectric plates,the metal floor was printed on the bottom layer of the lower dielectric plate.Simulation results showed that the electric field phase obtained from the simulation at 60 GHz was spirally distributed on the square reference surface,and there was a phase singularity in the center,with clear+1 mode vortex phase distribution characteristics.In addition,a physical prototype of the antenna was fabricated,and laboratory tests showed that the phase distribution of the electric fileds radiated by the antenna or reflected from a steel plate also exhibited vortex patterns.
关键词
轨道角动量/OAM/涡旋电磁波/反射型超表面/天线/仿真Key words
orbital angular momentum/OAM/vortex electromagnetic waves/reflective metasurface/antenna/simulation引用本文复制引用
出版年
2024
NETL
NSTL
万方数据