Study on measurement and simulation of manipulating electromagnetic wave polarization by metamaterials
人工异向介质调控电磁波极化特性的实验与仿真研究

The polarization properties of electromagnetic wave have been gradually applied to the fields of communications, navigation and radar. In order to effectively control the polarization state of electromagnetic waves, a kind of metamaterial based on split-ring resonators(SRRs) is designed in this paper. The metamaterial is composed of SRRs, dielectric substrate and metal backplane, and it can completely convert incident linear-polarized waves into circular-polarized waves, elliptic-polarized waves and linear-polarized waves whose polarization is perpendicular to the incident wave. Our design is demonstrated by microwave experiments and simulations,and the experimental result and the simulation result are in good agreement with each other.