Full Text:   <269>

Summary:  <102>

CLC number: TN821

On-line Access: 2020-03-18

Received: 2019-10-24

Revision Accepted: 2020-02-17

Crosschecked: 2020-03-03

Cited: 0

Clicked: 740

Citations:  Bibtex RefMan EndNote GB/T7714

 ORCID:

Zhong-bo Zhu

https://orcid.org/0000-0003-1505-4880

Wei-dong Hu

https://orcid.org/0000-0002-6051-3962

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Frontiers of Information Technology & Electronic Engineering  2020 Vol.21 No.3 P.377-383

http://doi.org/10.1631/FITEE.1900581


A high-precision terahertz retrodirective antenna array with navigation signal at a different frequency


Author(s):  Zhong-bo Zhu, Wei-dong Hu, Tao Qin, Sheng Li, Xiao-jun Li, Jiang-jie Zeng, Xian-qi Lin, Leo P. Ligthart

Affiliation(s):  Beijing Key Laboratory of Millimeter Wave and Terahertz Technology, Beijing Institute of Technology, Beijing 100081, China; more

Corresponding email(s):   hoowind@bit.edu.cn

Key Words:  Terahertz, Retrodirective antenna array, Terahertz communications, Conjugate mixing


Zhong-bo Zhu, Wei-dong Hu, Tao Qin, Sheng Li, Xiao-jun Li, Jiang-jie Zeng, Xian-qi Lin, Leo P. Ligthart. A high-precision terahertz retrodirective antenna array with navigation signal at a different frequency[J]. Frontiers of Information Technology & Electronic Engineering, 2020, 21(3): 377-383.

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Abstract: 
Future communications will provide higher transmission rates and higher operating frequencies. In addition, agile beam tracking will be an inevitable trend in technology development. The terahertz retrodirective antenna array proposed and discussed in this paper can be a better solution for agile beam tracking. The array receives a 40-GHz navigation signal and accurately retransmits a 120-GHz beam in the direction of the arrival wave. Simulation results indicate that the proposed array with a stacked sandwich structure has realized the tracking of the received wave. The scanning radiation pattern shows that the array gain is 23.87 dB at 19.9° when the incident angle is 20° with a relative error of only 0.5%, meaning that there is a lateral error of only 8.7 m at a transmission distance of 5 km.

高精度太赫兹异频回溯天线阵列

朱忠博1,2,胡伟东1,秦涛3,李升2,李小军2,曾姜杰3,林先其3,Leo P. LIGTHART1
1北京理工大学毫米波与太赫兹技术北京市重点实验室,中国北京市,100081
2中国空间技术研究院西安分院空间微波技术重点实验室,中国西安市,710100
3电子科技大学电子科学与工程学院,中国成都市,611731

摘要:未来通信系统将工作于更高频率,并提供更高传输速率。频率提升将导致难以提供区域宽波束覆盖,因此灵活捷变的波束跟踪将成为技术发展的必然趋势。本文报道的太赫兹波束回溯天线阵列可为灵活捷变的波束跟踪提供良好解决方案。该天线阵列接收40 GHz的导频信号,回溯波束传输的信号是120 GHz。仿真结果表明文中所述具有三明治堆叠结构的天线阵列可成功实现入射波的回溯功能。天线辐射方向图显示该天线阵列在20°入射波条件下,其回溯波束在19.9°位置处,增益为23.87 dB,回溯方向相对误差仅为0.5%。这意味着在5 km传输距离下,水平误差仅为8.7 m。

关键词:太赫兹;回溯天线阵列;太赫兹通信;共轭混频

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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