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超宽带太赫兹通信中天线结构设计及其波束色散影响分析

郝万明 尤晓蓓 孙钢灿 朱政宇

郝万明, 尤晓蓓, 孙钢灿, 朱政宇. 超宽带太赫兹通信中天线结构设计及其波束色散影响分析[J]. 电子与信息学报, 2023, 45(1): 200-207. doi: 10.11999/JEIT211290
引用本文: 郝万明, 尤晓蓓, 孙钢灿, 朱政宇. 超宽带太赫兹通信中天线结构设计及其波束色散影响分析[J]. 电子与信息学报, 2023, 45(1): 200-207. doi: 10.11999/JEIT211290
HAO Wanming, YOU Xiaobei, SUN Gangcan, ZHU Zhengyu. Design of Antenna Structure and Analysis of Beam Split Effect in Ultra-BandWidth Terahertz Communications[J]. Journal of Electronics & Information Technology, 2023, 45(1): 200-207. doi: 10.11999/JEIT211290
Citation: HAO Wanming, YOU Xiaobei, SUN Gangcan, ZHU Zhengyu. Design of Antenna Structure and Analysis of Beam Split Effect in Ultra-BandWidth Terahertz Communications[J]. Journal of Electronics & Information Technology, 2023, 45(1): 200-207. doi: 10.11999/JEIT211290

超宽带太赫兹通信中天线结构设计及其波束色散影响分析

doi: 10.11999/JEIT211290
详细信息
    作者简介:

    郝万明:男,副教授,主要研究方向为毫米波通信、太赫兹通信、大规模MIMO技术、物理层安全技术、智能超表面技术等

    尤晓蓓:女,硕士生,研究方向为太赫兹通信、智能反射面技术等

    孙钢灿:男,教授,主要研究方向为深度学习、机器学习、无线通信、物理层安全技术等

    朱政宇:男,副教授,主要研究方向为智能反射面技术、物理层安全技术、无线通信与信号处理等

    通讯作者:

    孙钢灿 iegcsun@zzu.edu.cn

  • 中图分类号: TN82; TN92

Design of Antenna Structure and Analysis of Beam Split Effect in Ultra-BandWidth Terahertz Communications

  • 摘要: 为克服超宽带太赫兹通信中的波束色散,当前已设计了多种基于实时延(TTD)的天线结构,但其功耗大、复杂度高。为解决这一问题,该文提出一种低功耗、低复杂度的基于串行等间距延时器的稀疏射频链天线结构。通过联合优化延时器时延和移相器相位,可以改变子载波波束方向,实现多载波波束扩展与波束聚拢,从而为不同分布场景的用户服务。具体而言,在所提天线结构下,提出一种优化延时器时延和移相器相位的方案将多载波波束扩散到不同方向,实现波束扩展,以服务分布在不同方向上的用户。然后,通过调节时延和相位使所有载波波束对准同一方向,实现波束聚拢,以服务分布在同一方向上的用户。仿真结果表明了所设计天线结构和所提优化方案的有效性。
  • 图  1  单射频链多天线结构

    图  2  ULA 结构窄带与宽带系统下的波束模式

    图  3  多用户分布场景

    图  4  基于串行等间距延时器的稀疏射频链天线结构

    图  5  狄利克雷函数图

    图  6  传统天线结构和所提天线结构所形成的多载波波束方向

    图  7  传统天线结构和所提天线结构所形成的波束增益

    图  8  基于串行等间距延时器的稀疏射频链天线结构与每个延时器所连接移相器个数的关系

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出版历程
  • 收稿日期:  2021-11-18
  • 录用日期:  2022-05-05
  • 修回日期:  2022-04-10
  • 网络出版日期:  2022-05-09
  • 刊出日期:  2023-01-17

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