Ultra-wideband and broad-angle linear polarization conversion metasurface

Hengyi Sun, Changqing Gu, Xinlei Chen, Zhuo Li, Liangliang Liu, Ferran Martín

Research output: Contribution to journalArticleResearchpeer-review

84 Citations (Scopus)


© 2017 Author(s). In this work, a metasurface acting as a linear polarization rotator, that can efficiently convert linearly polarized electromagnetic waves to cross polarized waves within an ultra wide frequency band and with a broad incident angle, is proposed. Based on the electric and magnetic resonant features of the unit cell, composed by a double-head arrow, a cut-wire, and two short V-shaped wire structures, three resonances, which lead to the bandwidth expansion of cross-polarization reflections, are generated. The simulation results show that an average polarization conversion ratio of 90% from 17.3 GHz to 42.2 GHz can be achieved. Furthermore, the designed metasurface exhibits polarization insensitivity within a broad incident angle, from 0° to 50°. The experiments conducted on the fabricated metasurface are in good agreement with the simulations. The proposed metasurface can find potential applications in reflector antennas, imaging systems, and remote sensors operating at microwave frequencies.
Original languageEnglish
Article number174902
JournalJournal of Applied Physics
Issue number17
Publication statusPublished - 7 May 2017


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