Design, Simulation, and Fabrication of High-Performance Metamaterial Absorber for EMI Mitigation and THz NDT/Imaging Applications: A Shape-Preserved GHz-to-THz Transition Approach

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dc.authorid0000-0002-7361-2302
dc.contributor.authorTeber, Ahmet
dc.date.accessioned2026-02-28T12:17:39Z
dc.date.available2026-02-28T12:17:39Z
dc.date.issued2025
dc.departmentBayburt Üniversitesi
dc.description.abstractA metamaterial absorber (MMA) designed for the 5G FR2/mmWave bands (24.25-24.45 and 24.75-25.25 GHz) is simulated with CST Studio Suite and fabricated using laser and wet etching techniques. Absorption measurements are performed using horn antennas in conjunction with a vector network analyzer (VNA). The absorber achieves >95.8% absorption under normal incidence for Mode-1, while it exceeds 90% for Mode-2 in the 24.75-25.20 GHz. The simulation results are validated through an electrical equivalent circuit model and experimental data. This absorber presents a promising solution for electromagnetic interference (EMI) reduction and shielding applications. The same structure, scaled from mm to mu m without shape alteration, achieved over 90% absorption in the terahertz (THz) region (24-26 THz), particularly in the 24-25.12 THz range. The THz region, known as the THz gap, presents challenges due to limited THz sources and detectors. However, technologies such as THz non-destructive testing (NDT) offer potential in biomedical, communication, and defense applications. From this perspective, the high performance and scalability to mu m dimensions without changing the shape of the absorber make it suitable for high-frequency EM shielding applications. This dual behavior in the GHz and THz regions offers a versatile advantage due to its varied functionality.
dc.identifier.doi10.1002/adts.202500329
dc.identifier.issn2513-0390
dc.identifier.issue10
dc.identifier.scopus2-s2.0-105005787460
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1002/adts.202500329
dc.identifier.urihttps://hdl.handle.net/20.500.12403/5898
dc.identifier.volume8
dc.identifier.wosWOS:001491200900001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherWiley-V C H Verlag Gmbh
dc.relation.ispartofAdvanced Theory And Simulations
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20260218
dc.subject5G
dc.subjectabsorber
dc.subjectmetamaterial
dc.subjectmmWave
dc.subjectTHz non-destructive testing (NDT)
dc.titleDesign, Simulation, and Fabrication of High-Performance Metamaterial Absorber for EMI Mitigation and THz NDT/Imaging Applications: A Shape-Preserved GHz-to-THz Transition Approach
dc.typeArticle

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