Wideband Terahertz Metasurfaces with Beam Manipulations

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

1 Citation (Scopus)

Abstract

A wideband terahertz (THz) reflective metasurface with reconfigurable beam manipulation operating at 0.1THz is proposed in this paper. A novel 1-bit reconfigurable unit cell is designed and analyzed. Owning to the characteristics of phase change material (PCM), GeTe, the electrical property of the unit cell can be changed to provide 0- and 180-degree phase tuning. To validate the performance of the proposed active element, a coded reflective metasurface is demonstrated by utilizing the geometric phase compensation technique. The proposed metasurface achieves switchable directional beams at 0 and 30 degrees through distinct coded patterns, while maintaining the wide operating bandwidth ranging from 100GHz to 120 GHz with the stable realized gains of 22 dBi. The obtained results indicated the effectiveness of controlling beam angle and directivity and the feasibility of integrating PCM into THz devices. Hence, the proposed THz reflective metasurface shows its potential for future implementation in 6G applications.
Original languageEnglish
Title of host publication17th European Conference on Antenna and propagation (EuCAP 2023)
PublisherIEEE
Number of pages5
ISBN (Electronic)978-88-31299-07-7
ISBN (Print)978-1-6654-7541-9
DOIs
Publication statusPublished - 2023
Event17th European Conference on Antennas and Propagation (EuCAP 2023) - Fortezza da Basso, Florence, Italy
Duration: 26 Mar 202331 Mar 2023
https://www.eucap2023.org/

Publication series

NameEuropean Conference on Antennas and Propagation (EuCAP)
PublisherIEEE

Conference

Conference17th European Conference on Antennas and Propagation (EuCAP 2023)
Abbreviated titleEuCAP2023
Country/TerritoryItaly
CityFlorence
Period26/03/2331/03/23
Internet address

Research Keywords

  • beam manipulation
  • metasurfaces
  • phasechange materials
  • terahertz

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