基于带状线的混合模态涡旋波天线设计  

Design of the Hybrid Mode OAM Antenna Based on the Stripline

作　　者：田震[1] 李金龙[1] 宋兆涵 冯强 梁君[1] TIAN Zhen;LI Jinlong;SONG Zhaohan;FENG Qiang;LIANG Jun(Beijing Institute of Astronautical Systems Engineering,China Academy of Launch Vehicle Technology,Beijing 100076,China;School of Electronic Engineering,Xidian University,Xi’an 710071,China)

机构地区：[1]中国运载火箭技术研究院北京宇航系统研究所,北京100076 [2]西安电子科技大学电子工程学院,陕西西安710071

出　　处：《测试技术学报》2023年第6期534-541,共8页Journal of Test and Measurement Technology

摘　　要：鉴于涡旋电磁波所体现出的独特空间电磁场分布特征,以及其携带的轨道角动量在理论上所具有的无穷维度模态正交特性,涡旋电磁波在无线通信领域和雷达探测与成像领域均表现出重要的研究价值和应用潜力;从涡旋电磁波的电磁场分布和原理入手,针对当前混合模态涡旋波天线结构尺寸大、模态干扰大的问题,设计了一种基于带状线的叠层结构的抗干扰混合模态涡旋电磁波阵列天线;在C波段设计叠层结构的混合模态天线阵列,并基于带状线屏蔽性能优势设计1分4和1分8两种馈电网络,以及进行实物加工和近、远场测试;通过加入软件无线电平台,搭建无线收发传输链路,验证该天线阵列多路信号传输特性能正确解复用且隔离度较好,实现频谱效率的提升。In view of the unique spatial electromagnetic field distribution characteristics embodied in vortex electromagnetic waves and the theoretical orthogonal characteristics of infinite dimensional modal orthogonal of the orbital angular momentum they carry,vortex electromagnetic waves show important research value and application potential in the field of wireless communication and radar detection and imaging.Starting from the electromagnetic field distribution and principle of vortex electromagnetic waves,aiming at the problems of large structure size and large modal interference of the current hybrid modal vortex wave antenna,an anti-interference hybrid mode vortex electromagnetic wave array antenna based on stripline stacked structure is designed.A hybrid modal antenna array with a stacked structure is designed in the C-band,and two feed networks,namely 1∶4 and 1∶8,are designed based on the advantages of stripline shielding performance,as well as physical processing and near and far field tests.By adding the software-defined radio platform to build a wireless transceiver transmission link,it is verified that the multi-channel signal transmission characteristics of the antenna array are correctly demultiplexed and the isolation degree is good,so as to improve the spectral efficiency.

关 键 词：OAM 混合模态 天线阵列 C波段 无线收发 

分 类 号：TN95[电子电信—信号与信息处理]