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

Zhong bo Zhu, Wei dong Hu*, Tao Qin, Sheng Li, Xiao jun Li, Jiang jie Zeng, Xian qi Lin, Leo P. Ligthart

*Corresponding author for this work

Research output: Contribution to journalLetterpeer-review

7 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)377-383
Number of pages7
JournalFrontiers of Information Technology and Electronic Engineering
Volume21
Issue number3
DOIs
Publication statusPublished - 1 Mar 2020

Keywords

  • Conjugate mixing
  • Retrodirective antenna array
  • TN821
  • Terahertz
  • Terahertz communications

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