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In this paper, we design an all-dielectric polarization conversion metasurface using high-permittivity ceramics. The metasurface is composed of 2D arrays of ceramic resonators. A nearly 1 GHz polarization conversion is demonstrated in 3.68–4.64GHz. Since such polarization conversion metasurface are made of high-permittivity ceramics, they are of important values in high-temperature or high-power applications...
In this paper, we designed single band tunable metamaterial absorber (MMA), which includes of periodic array cube ferrites and metal ground plane. The cube ferrite act as resonant cell, when incident electromagnetic wave and applied magnetic field are all together act on absorber, cube ferrite can produce ferromagnetic resonance (FMR) under some condition, which result in the perfect absorption. By...
Three-dimensional structure terahertz metamaterial absorbers with the properties of ultrabroadband and polarization-insensitive absorption were proposed. Different from the recent designs of the multilayer horizontal configurations, our design consists of the uniaxial anisotropic gold nanowire arrays that are filled in the frustum pyramid dielectric medium. The principle for the ultrabroadband absorption...
We propose a ultra-wideband polarization conversion metasurface composed of copper sheet-backed asymmetric V-shaped resonators. The ultra-wideband polarization convertibility is resulted from multiple resonances of the V-shaped resonators. The simulation results show that the polarization conversion ratio (PCR) is nearly 100% for both x-and y-polarized normally incident EM waves at the four resonance...
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