A Metasurface-Based LTC Polarization Converter with S-Shaped Split Ring Resonator Structure for Flexible Applications

Erfeng Li; Xue Jun Li; Boon-Chong Seet; Adnan Ghaffar; Aayush Aneja

doi:10.3390/s23146268

A Metasurface-Based LTC Polarization Converter with S-Shaped Split Ring Resonator Structure for Flexible Applications

Sensors (Basel). 2023 Jul 10;23(14):6268. doi: 10.3390/s23146268.

Authors

Erfeng Li¹, Xue Jun Li¹, Boon-Chong Seet¹, Adnan Ghaffar¹, Aayush Aneja¹

Affiliation

¹ Department of Electrical and Electronic Engineering, Auckland University of Technology, Auckland 1010, New Zealand.

Abstract

This paper presents a metasurface-based linear-to-circular polarization converter with a flexible structure for conformal and wearable applications. The converter consists of nested S- and C-shaped split ring resonators in the unit cell and can convert linearly polarized incident waves into left-handed circularly polarized ones at 12.4 GHz. Simulation results show that the proposed design has a high polarization conversion rate and efficiency at the operating frequency. Conformal tests are also conducted to evaluate the performance under curvature circumstances. A minor shift in the operating frequency is observed when the converter is applied on a sinusoidal wavy surface.

Keywords: L2C polarization converter; flexible; metasurface; split ring resonator.

Grants and funding

This research received no external funding.