Multiband Frequency Metamaterial Absorber

Abstract

In this work, we design a multiband frequency metamaterial absorber. The structure is composed of several layers of frequency selective metasurfaces. Each metasurface consists of a periodic arrangement identical unit cells. Each unit cell has two behaviors controlled by an external command system. According to the external command system stats (ON/OFF) the unit cell behaves as a conducting medium or as dielectric medium using these controllable metamaterial layers we can control the frequency band of the absorber structure.