基于阻抗匹配的大角度斜入射超材料吸波器设计

2021 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2021-11-15 DOI:10.1109/IMWS-AMP53428.2021.9643892

Hengyan Hu, Yang Yang, Xiaoxiang He, Yan Chen, Fukang Li, Yan Deng, Lei Yang

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引用次数: 1

摘要

为了实现大角度斜入射下的稳定吸收，通过优化其输入阻抗以匹配横向电极化模式下斜入射界面波阻抗，提出了一种空腔内嵌集总电阻的超材料吸波器。根据矢量传输线方程，可以推导出斜入射传输线的特性阻抗。通过调整吸波器的平面结构，使阻抗匹配良好，使60°~ 70°角处90%以上的吸收带提高到7.9 ~ 12.3GHz。

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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Design of Metamaterial Absorber for Large Angle Oblique Incidence with Impedance Matching

In this paper, to realize stable absorption under large angle oblique incidence, a metamaterial absorber (MA) with air cavity embedded with lumped resistors is proposed by optimizing its input impedance to match the oblique incident interface wave impedance at transverse electric (TE) polarization mode. According to the vector transmission line equations, the characteristic impedance of transmission line for oblique incidence can be derived. As a result, the absorption band over 90% at the angle from 60° to 70° is improved to 7.9 - 12.3GHz since the impedance is well matched through adjusting the absorber's plane structure.

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来源期刊

2021 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)

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