Controlling Energy Radiations of Electromagnetic Waves via Frequency Coding Metamaterials.

ABSTRACT: Metamaterials are artificial structures composed of subwavelength unit cells to control electromagnetic (EM) waves. The spatial coding representation of metamaterial has the ability to describe the material in a digital way. The spatial coding metamaterials are typically constructed by unit cells that have similar shapes with fixed functionality. Here, the concept of frequency coding metamaterial is proposed, which achieves different controls of EM energy radiations with a fixed spatial coding pattern when the frequency changes. In this case, not only different phase responses of the unit cells are considered, but also different phase sensitivities are also required. Due to different frequency sensitivities of unit cells, two units with the same phase response at the initial frequency may

SUBMITTER: Wu H 

PROVIDER: S-EPMC5604374 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature