Antenna integrated novel metasurface for simultaneous wireless information and power transfer

IF 3.2 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Aeu-International Journal of Electronics and Communications Pub Date : 2025-08-29 DOI:10.1016/j.aeue.2025.156018

R. Aneesh Kumar , R. Sethunadh , Chinmoy Saha

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引用次数: 0

Abstract

Simultaneous wireless information and power transfer (SWIPT) has recently gained significant attention as promising technology for Internet of Things (IoT). SWIPT enables autonomous IoT nodes with simultaneous energy harvesting (EH) and information transfer (IT) capabilities. For implementation in current compact IoT nodes, the SWIPT system should allow maximum integration of EH and IT chains in small footprint. Proposed work caters to such requirement by establishing planar integration of antenna with metasurface for SWIPT, where metasurface and antenna caters to the EH and IT chain respectively, with high isolation between them. A miniaturized rectifier smaller than the size of the metasurface unit cell is also demonstrated in this work, which allows easy implementation of EH chain. A parasitic slot radiator loaded patch is proposed as antenna element for IT chain, which provides near omni-directional radiation pattern with high gain. The design of the proposed work is carried out at 2.45 GHz frequency. The metasurface is demonstrated in experiment with radiation to AC conversion efficiency close to 90 %, whereas, miniaturized rectifier provides more than 40% rectification efficiency at power as low as -10 dBm. Antenna for IT chain demonstrates peak gain of 7 dBi in experiment with near omni-directional radiation pattern.

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天线集成新型超表面，实现无线信息和能量同步传输

同时无线信息和电力传输（SWIPT）作为物联网（IoT）的一项有前途的技术，近年来备受关注。SWIPT使自主物联网节点具有同步能量收集（EH）和信息传输（IT）功能。为了在当前紧凑的物联网节点中实施，SWIPT系统应该允许在较小的占地面积内最大限度地集成EH和IT链。本文提出的工作就是为了满足这一需求，为SWIPT建立天线与元表面的平面集成，其中元表面和天线分别迎合EH链和IT链，两者之间具有较高的隔离性。本研究还展示了一种比超表面单元电池尺寸更小的小型化整流器，它可以很容易地实现EH链。提出了一种寄生槽式辐射加载贴片作为IT链的天线单元，可提供高增益的近全向辐射方向图。所提出工作的设计是在2.45 GHz频率下进行的。实验表明，该超表面辐射对交流转换效率接近90%，而小型化整流器在低至-10 dBm的功率下可提供40%以上的整流效率。IT链天线在近全向辐射方向图下的峰值增益为7dbi。

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.