Liquid crystal-based reflective dual-band sub-terahertz phase shifter
A terahertz (THz) phase shifter based on a liquid crystal and a single-layer metasurface with a shared aperture for dual-band antennas is proposed. The device achieves phase shifts exceeding 180° in dual-frequency bands, with simulations indicating 236.8-248.8 GHz and 462-478 GHz ranges while experimental results demonstrate 239.3-249.4 GHz and 464-472.5 GHz operational bandwidths. Maximum phase shifts of 225.8° at 244.5 GHz and 201° at 468.3 GHz were experimentally recorded. The proposed metasurface is designed for use in a dual-band terahertz antenna system with shared aperture and phased array functionality.
Authors
- Guangsheng Deng (ORCID: https://orcid.org/0000-0001-9687-6856)
- Zhiping Yin (ORCID: https://orcid.org/0000-0002-7567-0100)
- Jun Yang (ORCID: https://orcid.org/0000-0003-0553-7571)
- Hongbo B. Lu (ORCID: https://orcid.org/0000-0001-8034-3035)
- Kun Zhang (ORCID: https://orcid.org/0000-0001-9195-8000)
- Yingsong Li (ORCID: https://orcid.org/0000-0002-2450-6028)
- Guozhen Zhang (ORCID: https://orcid.org/0009-0000-8423-7598)
- Xiaojie Zha
Institutions
- Hefei University of Technology (CN)
Publication Details
- Journal
- Applied Optics
- Published
- 2025-05-15
- DOI
- https://doi.org/10.1364/ao.555419
- Citations
- 1
- Primary Topic
- Photonic and Optical Devices
- Type
- article
- Field-Weighted Citation Impact
- 0.73
Funders
- National Key Research and Development Program of China