斜入射宽带斜栅频率选择表面吸收器

2019 Thirteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials) Pub Date : 2019-09-01 DOI:10.1109/MetaMaterials.2019.8900855

Yulu Zhang, Jianjun Jiang

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引用次数: 1

摘要

我们提出了一种用于斜入射的宽带频率选择表面(FSS)吸收器。具有各向异性元件的吸收结构在两个极化方向上具有不同的阻抗，以匹配斜入射的自由空间特性阻抗，从而在宽带范围内具有较低的微波反射率。采用斜栅对光栅瓣进行抑制。仿真和测量结果均表明，在45°入射角下，TE偏振和TM偏振的反射率均在- 10 dB以下的1.35-4.0 GHz宽带范围内。

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Wideband skewed grid frequency selective surface absorber for oblique incidence

We present a wideband frequency selective surface (FSS) absorber for oblique incidence. The absorber structure with anisotropic elements exhibits different impedances in two polarizations to match free space characteristic impedance at oblique incidence, thus resulting in a low microwave reflectivity over a wideband range. The grating lobe is suppressed by the use of skewed grid. Simulation and measurement results all illustrate that the reflectivity covers a broad band of 1.35-4.0 GHz below −10 dB for both TE and TM polarizations at an incident angle of 45°.

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来源期刊

2019 Thirteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials)

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