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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, a band stop all-dielectric metamaterial frequency selective surface (FSS) is designed based on effective medium theory and dielectric resonator theory. The FSS is made of high-permittivity ceramics without using any metallic parts. The stop band FSS is composed of 2D arrays of Jerusalem cross-shaped ceramic resonators. Solid-state sintering method is adopted to prepare the high-permittivity...
In this paper, we propose a polarization-independent and broadband perfect metamaterial absorber operating in mid-infrared region. The proposed absorber is a periodic meta-atom array consisting of metal-dielectric-multilayer truncated cones, which can control gray- or black-body thermal signatures. The simulation is implemented using CST Microwave Studio. The simulated results show that the proposed...
In this letter, we propose the decoupling technique of patch antenna arrays by suppressing near-field magnetic coupling (NFMC) using magnetic metamaterials unite cells. To this end, a highly-integrated linked magnetic metamaterial unite cells, the substrate-integrated split-ring resonator (SI-SRR), is firstly proposed to achieve negative permeability at the antenna operating frequency. By integrating...
Electrical smallness is one of the most fundamental properties of metamaterials. Generally, the size of a metamaterial unit cell must be less than λ/10. In this paper, we propose the design of extremely sub-wavelength magnetic metamaterials that can be made far less than λ/1000. Based on broadside capacitive couplings, the magnetic resonant frequency of split-ring resonator magnetic metamaterials...
Most reported negative index of materials (NIMs) have combined conducting split ring resonators (SRRs) to realize the magnetic response and nonresonant wires to realize the electric response. But wire media has some disadvantages in common practice. Therefore, electric resonators were introduced by researchers to replace the wire media recently. Electric resonators are convenient to control and can...
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