Modelling of ultra thin polarization insensitive dual band metamaterial absorber for shielding and sensing application

IF 2.5 3区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Magnetism and Magnetic Materials Pub Date : 2025-04-06 DOI:10.1016/j.jmmm.2025.173041

Sonu Jain, Mamta Devi Sharma, Ritu Sharma

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引用次数: 0

Abstract

In this paper a dual band Metamaterial absorber developed for 5G (n78), WiMAX (Worldwide Interoperability for Microwave Access), and Wireless Local Area Networks (WLAN). The Fr4 substrate integrates two Metamaterial resonators. A crossed Z-shaped structure is specifically designed to absorb electromagnetic waves at a frequency of 3.5 GHz. In addition, a resonator in the shape of a square loop is responsible for absorbing waves in a second frequency band at 2.4 GHz. The top and bottom metallic layers are designed in such a way that radio frequency (RF) waves impinge on the dielectric surface. The resonance phenomena of the suggested structure were confirmed by employing an equivalent circuit model. Surface current analysis was also used to validate the metamaterial properties of the suggested structure. The suggested absorber’s absorption was confirmed under TE and TM polarization at various incidence angles. The investigations show that absorption is more than 99.99 % at 2.4 GHz and 3.5 GHz. Further metamaterial properties of the structure were investigated by finding negative refractive indexes at 2.4 GHz and 3.5 GHz. Moreover, analysis also confirmed the effectiveness of the designed absorber in a sensing application.

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来源期刊

Journal of Magnetism and Magnetic Materials 物理-材料科学：综合

CiteScore

5.30

自引率

11.10%

发文量

1149

审稿时长

59 days

期刊介绍： The Journal of Magnetism and Magnetic Materials provides an important forum for the disclosure and discussion of original contributions covering the whole spectrum of topics, from basic magnetism to the technology and applications of magnetic materials. The journal encourages greater interaction between the basic and applied sub-disciplines of magnetism with comprehensive review articles, in addition to full-length contributions. In addition, other categories of contributions are welcome, including Critical Focused issues, Current Perspectives and Outreach to the General Public. Main Categories: Full-length articles: Technically original research documents that report results of value to the communities that comprise the journal audience. The link between chemical, structural and microstructural properties on the one hand and magnetic properties on the other hand are encouraged. In addition to general topics covering all areas of magnetism and magnetic materials, the full-length articles also include three sub-sections, focusing on Nanomagnetism, Spintronics and Applications. The sub-section on Nanomagnetism contains articles on magnetic nanoparticles, nanowires, thin films, 2D materials and other nanoscale magnetic materials and their applications. The sub-section on Spintronics contains articles on magnetoresistance, magnetoimpedance, magneto-optical phenomena, Micro-Electro-Mechanical Systems (MEMS), and other topics related to spin current control and magneto-transport phenomena. The sub-section on Applications display papers that focus on applications of magnetic materials. The applications need to show a connection to magnetism. Review articles: Review articles organize, clarify, and summarize existing major works in the areas covered by the Journal and provide comprehensive citations to the full spectrum of relevant literature.