Design and performance analysis of a DNG metamaterial-enhanced underwater MIMO antenna array for reliable underwater communication

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

Aeu-International Journal of Electronics and Communications Pub Date : 2025-04-09 DOI:10.1016/j.aeue.2025.155772

Bhagya Sri N.K. Kagitha , Kalyanbrata Ghosh , Ujjal Chakraborty

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引用次数: 0

Abstract

This paper presents the design and performance analysis of a novel 2 × 1 MIMO (multiple-input multiple-output) antenna array for reliable communication across multiple frequency bands in surface and submerged environments. The antenna incorporates double negative metamaterials(DNG) in the superstrate to enhance isolation, improve gain, and optimize efficiency. Operating at 1.31-1.37 GHz (L-band), 1.88-1.95 GHz, 2.2-2.32 GHz, 2.63-2.69 GHz (S-band) and 2.82-2.95 GHz (S-Band), it demonstrates strong multiband performance. Performance metrics such as return loss, VSWR, total active reflection coefficient (TARC), envelope correlation coefficient (ECC), and directivity are evaluated through simulations and experiments. The antenna achieves a maximum gain of 12.27 dBi and a TARC value of -22.32 dB at 2.25 GHz, with minimal mismatch loss and high efficiency of 81.3%, even when tested under dynamic underwater conditions. Electromagnetic analysis, including E-field distributions and surface current density plots, highlights the role of the DNG superstrate in wave manipulation and isolation enhancement. The proposed design demonstrates significant performance improvements, positioning it as a promising solution for underwater communication in marine exploration, underwater navigation, and remote sensing applications.

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用于可靠水下通信的DNG超材料增强水下MIMO天线阵列设计与性能分析

本文介绍了一种新型的2 × 1 MIMO（多输入多输出）天线阵列的设计和性能分析，用于在水面和水下环境中跨多个频段的可靠通信。该天线采用了双负超材料（DNG）来增强隔离、提高增益和优化效率。工作在1.31-1.37 GHz （l波段）、1.88-1.95 GHz、2.2-2.32 GHz、2.63-2.69 GHz （s波段）和2.82-2.95 GHz （s波段），具有较强的多频段性能。性能指标，如回波损耗、VSWR、总主动反射系数（TARC）、包络相关系数（ECC）和指向性通过模拟和实验进行评估。该天线在2.25 GHz时的最大增益为12.27 dBi， TARC值为-22.32 dB，即使在动态水下条件下测试，失配损耗最小，效率也高达81.3%。电磁分析，包括电磁场分布和表面电流密度图，突出了DNG上覆层在波操纵和隔离增强方面的作用。提出的设计显示了显著的性能改进，将其定位为海洋勘探、水下导航和遥感应用中的水下通信解决方案。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.