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Journal of Electromagnetic Waves and Applications Volume 37, 2023 - Issue 7-9
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Oblique incidence-insensitive metamaterial absorber using strong magnetic coupling resonance for low-frequency microwave absorption

Wentao YangSchool of Integrated Circuits, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
,
Xi ZengSchool of Integrated Circuits, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
,
Lei ZhengSchool of Integrated Circuits, Huazhong University of Science and Technology, Wuhan, People’s Republic of ChinaORCID Iconhttps://orcid.org/0000-0002-7016-6423
ORCID Icon,
Xian WangSchool of Integrated Circuits, Huazhong University of Science and Technology, Wuhan, People’s Republic of ChinaCorrespondence[email protected]
&
Rongzhou GongSchool of Integrated Circuits, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
Pages 898-908 | Received 07 Sep 2022, Accepted 05 May 2023, Published online: 24 May 2023
 
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Abstract

In this work, we presented an oblique incidence-insensitive metamaterial absorber (MA) based on the strong magnetic coupling resonance using the printed circuit board process, and the spacer is produced by a typical magnetic absorber material (MAM). As for reflection loss (RL) at oblique angles, it can achieve high-efficiency absorption for both transverse-electric (TE) and transverse-magnetic (TM) polarizations with a wide angular range from 0° to 60° in the low frequency of 2.33 GHz to 3.44 GHz. In addition, the magnetic coupling mechanism of the metamaterial absorber was deeply analyzed. Comparing the results of the simulation and experiment, it displays excellent absorption performance of the proposed absorber in TE and TM modes under large oblique incidence angles.

Disclosure statement

No potential conflict of interest was reported by the author(s).

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