Low-Profile Water-Based Ultrabroadband 3-D Printed Metamaterial Absorber

IF 4.8 2区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-06-10 DOI:10.1109/LAWP.2025.3577564

Shuai Huang;Zewei Wu;Tongxing Huang;Youlei Pu;Zhijing Wen;Jianxun Wang;Yong Luo

引用次数: 0

Abstract

A low-profile, dual-polarized water-based metamaterial absorber with ultrabroadband performance is proposed. The design integrates a two-step water block with sinusoidal boundary perturbations and a tapered dielectric shell. The tapered geometry introduces a vertical gradient in effective scattering size, allowing different frequencies to excite different combinations of Mie resonance modes. This mechanism enhances modal density across the spectrum and supports continuous broadband absorption. In addition, a nonuniform gradient impedance transition formed by mismatched tilt angles improves electromagnetic matching. The absorber achieves over 90% absorption from 12.6 GHz to 220 GHz under dual polarization, with robust angular and thermal stability. Measurement results of a 3-D-printed prototype agree well with simulations, validating the proposed geometry-driven multimode absorption mechanism.

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低轮廓水基超宽带3d打印超材料吸收器

提出了一种具有超宽带性能的低姿态、双极化水基超材料吸收体。该设计集成了具有正弦边界扰动的两步水块和锥形介电壳。锥形几何结构引入了有效散射尺寸的垂直梯度，允许不同的频率激发不同的Mie共振模式组合。这种机制增强了整个频谱的模态密度，并支持连续宽带吸收。此外，不匹配的倾斜角形成的不均匀梯度阻抗过渡改善了电磁匹配。该吸收器在双极化下在12.6 GHz至220 GHz范围内达到90%以上的吸收，具有良好的角稳定性和热稳定性。三维打印样机的测量结果与仿真结果吻合较好，验证了所提出的几何驱动多模吸收机理。

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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来源期刊

IEEE Antennas and Wireless Propagation Letters 工程技术-电信学

CiteScore

8.00

自引率

9.50%

发文量

529

审稿时长

1.0 months

期刊介绍： IEEE Antennas and Wireless Propagation Letters (AWP Letters) is devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation. These are areas of competence for the IEEE Antennas and Propagation Society (AP-S). AWPL aims to be one of the "fastest" journals among IEEE publications. This means that for papers that are eventually accepted, it is intended that an author may expect his or her paper to appear in IEEE Xplore, on average, around two months after submission.