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Metamaterials absorber for multiple frequency points within 1 GHz

机译:用于在1 GHz内的多个频率点的超材料吸收器

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摘要

Designing high efficiency microwave absorbers with frequencies in 1 GHz is still a huge challenge in practical applications. We design and present a novel microwave metamaterials absorber at six frequency points of 160, 442, 530, 723, 765 and 965 MHz with absorptances up to 90%, which is insensitive to polarization, viable at wide incidence angle and relatively simple in structure. We demonstrate the absorption characteristics of the absorber and explain the mechanism by means of equivalent impedance theory, surface current and energy distribution. The experimental results verify the correctness of the simulation and provide valuable reference for the design of broad-band microwave absorber in lower frequency band.
机译:在1 GHz中使用频率设计高效微波吸收器在实际应用中仍然是一个巨大的挑战。 我们设计并在160,442,530,723,765和965MHz的六个频率点上设计并提出了一种具有高达90%的765和965MHz的新微波超材料吸收器,其对极化不敏感,可在宽入射角和结构相对简单。 我们证明了吸收器的吸收特性,并通过等效阻抗理论,表面电流和能量分布解释了机制。 实验结果验证了模拟的正确性,并为下频带的宽带微波吸收器设计提供了有价值的参考。

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