A miniaturized high-performance AMC-integrated dual band antenna for next-generation wireless communication platforms

IF 1.6 4区地球科学 Q3 ASTRONOMY & ASTROPHYSICS

Radio Science Pub Date : 2026-06-01 Epub Date: 2026-07-03 DOI:10.1029/2025RS008537

V. Rajavel;R. Ramasamy;Dibyendu Ghoshal;P. Venkatesh

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引用次数: 0

Abstract

Recent advancements in wireless communication technologies and Internet-enabled devices have accelerated the demand for compact, efficient antennas suitable for body-centric applications. This study presents a compact, high-performance dual-frequency antenna featuring an artificial magnetic conductor (AMC) surface for next-generation wireless systems. A modified gear-wheel radiating patch on top and a partial ground plane on the bottom comprise the antenna, making it a three-layer antenna. A circular patch overlays 12 radiating teeth, enabling a dual wideband response. The AMC surface comprises a 4 × 4 array of unit cells, each incorporating slotted square and rectangular patches. The unit cells exhibit double-negative (DNG) properties and operate in three frequency regions. The zero-degree reflection phase occurs at 2.5 GHz, 4.1 GHz, and 6.5 GHz. The integrated antenna covers impedance bandwidths of 71.79% (2.0–4.24 GHz) and 41.67% (5.13–7.83 GHz), encompassing key wireless frequency bands, while maintaining compact dimensions of 0.554λ0 × 0.554λ0 × 0.135λ0 at the lowest resonant frequency. A maximal gain of 8.26 dBi, a low Specific Absorption Rate (SAR) of 0.0528 W/kg, and a high FBR of 33.85 dB at 4.1 GHz are key performance characteristics. VSWR values below 2 in both bands indicate exceptional impedance matching. Experimental validation using a Vector Network Analyzer (VNA) and an anechoic chamber confirms the modeling results. The proposed antenna, owing to its low SAR and wideband performance, is suitable for body-centric wireless systems operating in standard frequency bands such as ISM, Wi-Fi 6E, and C-band.

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用于下一代无线通信平台的小型化高性能amc集成双频天线

无线通信技术和支持互联网的设备的最新进展加速了对适用于以身体为中心的应用的紧凑、高效天线的需求。本研究提出了一种紧凑、高性能的双频天线，采用人工磁导体（AMC）表面，用于下一代无线系统。所述天线由顶部的改进齿轮辐射贴片和底部的部分接地面组成，构成三层天线。圆形贴片覆盖12个辐射齿，实现双宽带响应。AMC表面由4 × 4的单元格阵列组成，每个单元格都包含开槽的方形和矩形块。单晶胞表现出双负（DNG）特性，并在三个频率区域工作。零度反射相位出现在2.5 GHz、4.1 GHz和6.5 GHz。集成天线覆盖71.79% （2.0-4.24 GHz）和41.67% （5.13-7.83 GHz）的阻抗带宽，涵盖关键无线频段，同时在最低谐振频率处保持0.554λ0 × 0.554λ0 × 0.135λ0的紧凑尺寸。最大增益为8.26 dBi，比吸收率（SAR）为0.0528 W/kg， 4.1 GHz时FBR为33.85 dB。两个波段的驻波比值均低于2表明阻抗匹配异常。利用矢量网络分析仪（VNA）和消声室进行的实验验证证实了建模结果。由于其低SAR和宽带性能，该天线适用于在ISM、Wi-Fi 6E和c波段等标准频段运行的以身体为中心的无线系统。

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

Radio Science 工程技术-地球化学与地球物理

CiteScore

3.30

自引率

12.50%

发文量

112

审稿时长

1 months

期刊介绍： Radio Science (RDS) publishes original scientific contributions on radio-frequency electromagnetic-propagation and its applications. Contributions covering measurement, modelling, prediction and forecasting techniques pertinent to fields and waves - including antennas, signals and systems, the terrestrial and space environment and radio propagation problems in radio astronomy - are welcome. Contributions may address propagation through, interaction with, and remote sensing of structures, geophysical media, plasmas, and materials, as well as the application of radio frequency electromagnetic techniques to remote sensing of the Earth and other bodies in the solar system.