Wideband Terahertz Metasurfaces with Beam Manipulations

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

View graph of relations

Detail(s)

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
Publication statusPublished - 2023

Publication series

NameEuropean Conference on Antennas and Propagation (EuCAP)
PublisherIEEE

Conference

Title17th European Conference on Antennas and Propagation (EuCAP 2023)
LocationFortezza da Basso
PlaceItaly
CityFlorence
Period26 - 31 March 2023

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.

Research Area(s)

  • beam manipulation, metasurfaces, phasechange materials, terahertz

Citation Format(s)

Wideband Terahertz Metasurfaces with Beam Manipulations. / To, Yat Sing; Lin, Quan Wei; Wong, Hang.
17th European Conference on Antenna and propagation (EuCAP 2023). IEEE, 2023. (European Conference on Antennas and Propagation (EuCAP) ).

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