Wide-band metamaterial absorber for sub-6 GHz 5G applications: Reducing specific absorption rate

IF 3 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Aeu-International Journal of Electronics and Communications Pub Date : 2025-02-12 DOI:10.1016/j.aeue.2025.155709

Punyatoya Routray, Debalina Ghosh

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引用次数: 0

Abstract

Wide coverage area, less sensitivity to noise, high data transceiving, low latency, IOT-based mass application, and increased connectivity make sub-6 GHz, a popularly used frequency band for 5G. However, the health issues due to the high amount of harmful electromagnetic radiation generated from the growing usage of the sub-6 GHz band have drawn the attention of researchers. This article presents a wide-band, polarization, and oblique angle insensitive metamaterial absorber with an absorption bandwidth of 1.9 GHz stretching from 3.1 to 5 GHz, covering bands of n77, n78, and n79 allocated for 5G. The design consists of combination of rings, split rings, and meander-crossed dipoles loaded with lumped resistors. The equivalent circuit is designed using a quasi-static approach and the design is fabricated and measured. The proposed absorber is demonstrated for the reduction of electromagnetic radiation and specific absorption rate in the entire 5G band allocated in the sub-6 GHz range.

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来源期刊

Aeu-International Journal of Electronics and Communications 工程技术-电信学

CiteScore

6.90

自引率

18.80%

发文量

292

审稿时长

4.9 months

期刊介绍： AEÜ is an international scientific journal which publishes both original works and invited tutorials. The journal''s scope covers all aspects of theory and design of circuits, systems and devices for electronics, signal processing, and communication, including: signal and system theory, digital signal processing network theory and circuit design information theory, communication theory and techniques, modulation, source and channel coding switching theory and techniques, communication protocols optical communications microwave theory and techniques, radar, sonar antennas, wave propagation AEÜ publishes full papers and letters with very short turn around time but a high standard review process. Review cycles are typically finished within twelve weeks by application of modern electronic communication facilities.