一种采用电容表面的低轮廓宽带吸收器

2020 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2020-08-26 DOI:10.1109/iWEM49354.2020.9237408

Yuting Zhao, Yingsong Li, X. Liu

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引用次数: 2

摘要

本文提出了一种具有广角覆盖的单层宽带吸收器。电阻表面是通过带有片状电阻的i形电容模式的周期性阵列来实现的。通过引入电容模式，金属接地和具有空气空间的电阻表面之间的距离减小到1/5 λ @10 GHz。在正常入射TE极化条件下，在5.5 GHz ~ 14.5 GHz范围内的10db吸收带宽在模拟中被观测到。该结构还具有高达30°的角稳定性，在4.8 GHz至14.5 GHz范围内具有至少90%吸收率的宽吸收带。设计结果与仿真结果吻合较好。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A Low-Profile Wideband Absorber Using Capacitive Surface

In this paper, a single-layer wideband absorber with wide angular coverage is presented. The resistive surface is realized by a periodic array of I-shaped capacitive patterns with chip resistors. By introducing the capacitive patterns, the distance between metal ground and resistive surface with air space is reduced to 1/5 λ @10 GHz. A 10-dB absorption bandwidth from 5.5 GHz to 14.5 GHz has been observed in simulation under normal incidence of TE polarization. This structure also exhibits an angular stability up to 30° with a wide absorption band of at least 90% absorptivity from 4.8 GHz to 14.5 GHz. The fabricated design shows good agreement with the simulation.

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2020 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)

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