Designing a Broadband Terahertz Metamaterial Absorber Through Bi-Layer Hybridization of Metal and Graphene

Sabaruddin, Nursafwanah Ramizah; Tan, Yu Ming; Chen, Sy-Hann; Chou Chao, Chung-Ting; Lim, Chee Ming; Thotagamuge, Roshan; Kooh, Muhammad Raziq Rahimi; Chou Chau, Yuan-Fong

doi:10.1007/s11468-024-02219-2

Cited by 13 publications

(1 citation statement)

References 51 publications

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“…On the other hand, frequency-selective surfaces (FSSs) are immune to such shortcomings and suitable, where selective shielding is required because of their small size, low cost, stable frequency responses, ease of fabrication, and employability. FSSs are the periodic arrangement of metallic resonant elements in two or three dimensions that can allow/shield/absorb electromagnetic waves and find widespread employability, including, but not limited to, radomes [ 1 ], EM absorbers [ 2 , 3 , 4 ], polarizers [ 5 ], antenna gain enhancement [ 6 ], RF energy harvesting [ 7 ], satellite communication [ 8 ], electromagnetic interference mitigation [ 9 , 10 ], and many others.…”

Section: Introductionmentioning

confidence: 99%

A Dual-Band Polarization-Insensitive Frequency Selective Surface for Electromagnetic Shielding Applications

Idrees,

He,

Ullah

et al. 2024

Sensors

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This paper presents a novel polarization-insensitive dual-band frequency-selective surface (FSS)-based electromagnetic shield. The miniaturized FSS unit cell consists of a modified Jerusalem crossed loop and a corner-modified square loop. These FSS elements are arranged in a co-planner configuration over a single-layer Rogers 5880 substrate and simultaneously offer effective shielding in the X- and Ku-bands. Moreover, the FSS manifests polarization-independent and angularly stable band-reject filter characteristics over various oblique angles of incidence for both the TE and TM polarizations with virtuous attenuation at both resonances. In addition, the FSS structure is modelled into an equivalent lumped circuit to better analyze the phenomenon of EM wave suppression. A finite prototype of FSS is fabricated and tested. The simulated and measured results are in good agreement, thus making it a potential candidate for RF shielding/isolation applications.

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