摘要
太赫兹超材料相控阵由于其强大的波束操纵能力在探测与通信一体化系统中具有重要的应用价值。为了提升系统的通信和探测性能,需要太赫兹超材料相控阵能够实现宽波束和窄波束的灵活切换。提出了一种基于反相位间隔(反相)编码的太赫兹超材料相控阵天线波束宽度调控方法。通过天线3 dB波束宽度表达式和目标波束宽度逆推阵列规模,保持其相位编码不变并对该阵列规模外的其余阵元进行反相编码,旨在实现相位相反相消。仿真结果表明,所提方法可以准确地调控太赫兹超材料相控阵天线的波束宽度,实现宽波束和窄波束的灵活切换。
Terahertz metamaterial phased array antenna has significant application value in integrated detection and communication systems due to its strong beam manipulation capabilities.In order to enhance the communication and detection performance of the system,it is necessary for terahertz metamaterial phased array antenna to achieve flexible switching between wide beams and narrow beams.Therefore,a beamwidth control method of terahertz metamaterial phased array antenna based on inverse phase interval(inverse phase)coding is proposed in this paper.The array size is reversed by the antenna 3dB beamwidth expression and the target beamwidth,the phase encoding is kept unchanged while the remaining elements outside the array size are inversely encoded,aiming to achieve phase cancellation by phase inversion.The simulation results demonstrate that the proposed method accurately controls the beamwidth of terahertz metamaterial phased array antenna,allowing for flexible switching between wide beams and narrow beams.
作者
张恒
王宏强
罗成高
梁传英
ZHANG Heng;WANG Hongqiang;LUO Chenggao;LIANG Chuanying(College of Electronic Science and Technology,National University of Defense Technology,Changsha Hunan 410073,China)
出处
《太赫兹科学与电子信息学报》
2024年第6期599-604,637,共7页
Journal of Terahertz Science and Electronic Information Technology
基金
国家自然科学基金资助项目(61921001
61971427
62035014
62105356
62201591)
国家重点研发计划资助项目(2022YFB3902400
2018YFB2202500)。
关键词
太赫兹超材料
波束宽度
探测与通信一体化
反相编码
相控阵天线
terahertz metamaterial
beamwidth
integrated detection and communication
inverse phase coding
phased array antenna
