Designing flexible and versatile metamaterial absorbers
Designing flexible and versatile metamaterial absorbers
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DOI：
10.1109/memc.0.7543955
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发表时间：
2016-08
期刊：
影响因子：
--
通讯作者：
H. Wakatsuchi;D. Sievenpiper;C. Christopoulos
中科院分区：
文献类型：
--
作者：
H. Wakatsuchi;D. Sievenpiper;C. Christopoulos
吸收体通过吸收入射波的能量并减少不必要的反射或透射，在保护敏感电子设备免受电磁干扰方面发挥着重要作用。在本文中，我们介绍了基于周期性结构的新型吸收体，或所谓的超材料，这给了我们额外的自由度来设计具有减小的厚度的吸收体的吸收性能。具体来说，我们展示了两种类型的超材料吸收器：一种允许我们在选定的频率下自定义吸收和其他散射参数;另一种只吸收高功率微波，即使在相同的频率下也能传输小信号，以保持无线通信。这些超材料吸收器有望有助于解决现代复杂的电磁干扰问题，其中存在不同的相互依赖的要求。
Absorbers play an important role in protecting sensitive electronic devices from electromagnetic interference by absorbing the energy of incoming waves and reducing unnecessary reflection or transmission. In this paper we introduce new types of absorbers based on periodic structures, or the so-called metamaterials, which give us additional degrees of freedom to design the absorbing performance of absorbers with reduced thicknesses. Specifically, we demonstrate two types of metamaterial absorbers: one allowing us to customize absorption and other scattering parameters at selected frequencies; another absorbing only high-power microwaves and transmitting small signals even at the same frequency to maintain wireless communications. These metamaterial absorbers are expected to facilitate solving modern, complex EM interference issues where different-interdependent requirements exist.