Ka-Band Low-Profile Circularly Polarized Liquid Crystal Folded Reflectarray Antenna
A low-profile circularly polarized liquid crystal (LC) folded reflectarray antenna operating at 30 GHz is proposed. The antenna consists of a 16 × 16 LC reconfigurable main reflector, a multilayer metasurface sub-reflector, and an integrated linearly polarized feed at the center of the main reflector. To verify this design, the proposed antenna has been fabricated and measured. It features a low profile height of only 2.5λ0 with an H/D ratio of 0.31. Its beam can be continuously steered, covering ±45° in the elevation plane and 0°∼360° in the azimuth plane. The measured 3-dB axial ratio bandwidth is 9.3% (28.6- 31.4 GHz).
Authors
- Deshuang Zhao (ORCID: https://orcid.org/0000-0001-7327-1002)
- Bing‐Zhong Wang (ORCID: https://orcid.org/0000-0003-0679-8925)
- Feng Liang (ORCID: https://orcid.org/0000-0003-0293-8185)
- Jiale Liu (ORCID: https://orcid.org/0009-0007-5881-3118)
- Xiangru Wang (ORCID: https://orcid.org/0000-0002-5105-5998)
- Xu Ni
Institutions
- University of Electronic Science and Technology of China (CN)
Publication Details
- Journal
- IEEE Antennas and Wireless Propagation Letters
- Published
- 2025-09-02
- DOI
- https://doi.org/10.1109/lawp.2025.3605393
- Citations
- 1
- Primary Topic
- Antenna Design and Analysis
- Type
- article
- Field-Weighted Citation Impact
- 4.99
Funders
- National Natural Science Foundation of China