A Quad-Band and Polarization-Insensitive Metamaterial Absorber with a Low Profile Based on Graphene-Assembled Film

Jin, Shiyi; Zu, Haoran; Qian, Wei; Luo, Kaolin; Xiao, Yang; Song, Rongguo; Xiong, Bo

doi:10.3390/ma16114178

Open AccessArticle

A Quad-Band and Polarization-Insensitive Metamaterial Absorber with a Low Profile Based on Graphene-Assembled Film

by

Shiyi Jin

^1,2,†,

Haoran Zu

^2,†

,

Wei Qian

^1,2,

Kaolin Luo

^1,2,

Yang Xiao

^1,2,

Rongguo Song

^1,2,* and

Bo Xiong

^1,*

¹

School of Science, Wuhan University of Technology, Wuhan 430070, China

²

Hubei Engineering Research Center of RF-Microwave Technology and Application, Wuhan University of Technology, Wuhan 430070, China

^*

Authors to whom correspondence should be addressed.

^†

These authors contributed equally to this work.

Materials 2023, 16(11), 4178; https://doi.org/10.3390/ma16114178

Submission received: 15 May 2023 / Revised: 29 May 2023 / Accepted: 1 June 2023 / Published: 4 June 2023

(This article belongs to the Special Issue Application of Graphene-Based Materials in Sensors and RF Electronics)

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Abstract

A quad-band metamaterial absorber using a periodically arranged surface structure placed on an ultra-thin substrate is demonstrated in this paper. Its surface structure consists of a rectangular patch and four L-shaped structures distributed symmetrically. The surface structure is able to have strong electromagnetic interactions with incident microwaves, thereby generating four absorption peaks at different frequencies. With the aid of the near-field distributions and impedance matching analysis of the four absorption peaks, the physical mechanism of the quad-band absorption is revealed. The usage of graphene-assembled film (GAF) provides further optimization to increase the four absorption peaks and promotes the low-profile characteristic. In addition, the proposed design has good tolerance to the incident angle in vertical polarization. The proposed absorber in this paper has the potential for filtering, detection, imaging, and other communication applications.

Keywords: metamaterial absorber; quad-band; graphene-assembled film; low profile; polarization-insensitivity

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MDPI and ACS Style

Jin, S.; Zu, H.; Qian, W.; Luo, K.; Xiao, Y.; Song, R.; Xiong, B. A Quad-Band and Polarization-Insensitive Metamaterial Absorber with a Low Profile Based on Graphene-Assembled Film. Materials 2023, 16, 4178. https://doi.org/10.3390/ma16114178

AMA Style

Jin S, Zu H, Qian W, Luo K, Xiao Y, Song R, Xiong B. A Quad-Band and Polarization-Insensitive Metamaterial Absorber with a Low Profile Based on Graphene-Assembled Film. Materials. 2023; 16(11):4178. https://doi.org/10.3390/ma16114178

Chicago/Turabian Style

Jin, Shiyi, Haoran Zu, Wei Qian, Kaolin Luo, Yang Xiao, Rongguo Song, and Bo Xiong. 2023. "A Quad-Band and Polarization-Insensitive Metamaterial Absorber with a Low Profile Based on Graphene-Assembled Film" Materials 16, no. 11: 4178. https://doi.org/10.3390/ma16114178

APA Style

Jin, S., Zu, H., Qian, W., Luo, K., Xiao, Y., Song, R., & Xiong, B. (2023). A Quad-Band and Polarization-Insensitive Metamaterial Absorber with a Low Profile Based on Graphene-Assembled Film. Materials, 16(11), 4178. https://doi.org/10.3390/ma16114178

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A Quad-Band and Polarization-Insensitive Metamaterial Absorber with a Low Profile Based on Graphene-Assembled Film

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