Multifunctional Polarization Converter Based on Dielectric Metamaterial

In this study, the development of a novel polarization converter using all-dielectric-based metamaterial, for the simultaneous high-efficiency conversion of both linearly and circularly polarized electromagnetic waves is reported. Supported by the field transformation technique, the developed converter is analyzed based on two methods: the constituent parameter and the decoupling incident-wave. Additionally, the inter-relationship among the structural parameters of the proposed structure and the effect of their individual variations are well investigated. The simulation and experimental results indicate that the developed polarization converter, which operates at approximately 12 GHz, converts up to 99.9% of the induced wave into its cross-polarized wave in the transmitted component. Moreover, the stability performance of the developed polarization converter reveals that the device exhibits moderate conversion efficiency over a wide incident-wave-angle variation range.