Circularly Polarized Sixteen-Port Flexible UWB MIMO Antenna Featuring Polarization Diversity for WBAN Applications

IF 0.9 4区工程技术 Q4 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS International Journal of RF and Microwave Computer-Aided Engineering Pub Date : 2024-08-10 DOI:10.1155/2024/8442770

Shailesh, Garima Srivastava, Sachin Kumar, Arpan Desai, Bhawna Goyal, Abdulkarem H. M. Almawgani, Turki Alsuwian

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Abstract

A sixteen-port circularly polarized (CP) ultrawideband (UWB) multiple-input−multiple-output (MIMO) belt antenna is designed and developed for wireless body area network (WBAN) applications. The proposed antenna comprises sixteen modified octagon-like ring antenna elements with a common ground. These antenna elements are designed on leather material and can be worn as a belt. Each antenna element contains a microstrip line feed and a modified octagon-like open-ended ring radiator to generate circular polarization. The belt antenna provides an impedance bandwidth (S₁₁ ≤ −10 dB) of 3.08–11 GHz (112.5%) and a 3 dB axial ratio bandwidth (ARBW) of 4.7–7.07 GHz (40.27%). The envelope correlation coefficient (ECC) amongst the resonating elements is <0.003. Additionally, the bending analysis and specific absorption rate (SAR) of the presented antenna are examined. The overall size of the belt antenna is 30 mm × 574 mm × 1 mm. The designed belt antenna is suitable for WBAN applications due to its leather material, good on-body performance, and nearly identical simulated and experimental results.

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用于 WBAN 应用的具有极化分集功能的圆极化十六端口柔性 UWB MIMO 天线

设计并开发了一种十六端口圆极化（CP）超宽带（UWB）多输入多输出（MIMO）腰带天线，用于无线体域网（WBAN）应用。拟议的天线由十六个改进的八角形环状天线元件组成，具有公共接地。这些天线元件设计在皮革材料上，可作为腰带佩戴。每个天线元件都包含一个微带线馈线和一个改进的八角形开口环形辐射器，以产生圆极化。腰带天线的阻抗带宽（S11 ≤ -10 dB）为 3.08-11 GHz（112.5%），3 dB 轴向比带宽（ARBW）为 4.7-7.07 GHz（40.27%）。谐振元件之间的包络相关系数（ECC）为 0.003。此外，还对所介绍天线的弯曲分析和比吸收率（SAR）进行了研究。腰带天线的整体尺寸为 30 mm × 574 mm × 1 mm。所设计的腰带天线采用皮革材料，具有良好的贴身性能，模拟结果与实验结果几乎完全一致，因此适用于 WBAN 应用。

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来源期刊

International Journal of RF and Microwave Computer-Aided Engineering 工程技术-工程：电子与电气

CiteScore

4.00

自引率

23.50%

发文量

489

审稿时长

3 months

期刊介绍： International Journal of RF and Microwave Computer-Aided Engineering provides a common forum for the dissemination of research and development results in the areas of computer-aided design and engineering of RF, microwave, and millimeter-wave components, circuits, subsystems, and antennas. The journal is intended to be a single source of valuable information for all engineers and technicians, RF/microwave/mm-wave CAD tool vendors, researchers in industry, government and academia, professors and students, and systems engineers involved in RF/microwave/mm-wave technology. Multidisciplinary in scope, the journal publishes peer-reviewed articles and short papers on topics that include, but are not limited to. . . -Computer-Aided Modeling -Computer-Aided Analysis -Computer-Aided Optimization -Software and Manufacturing Techniques -Computer-Aided Measurements -Measurements Interfaced with CAD Systems In addition, the scope of the journal includes features such as software reviews, RF/microwave/mm-wave CAD related news, including brief reviews of CAD papers published elsewhere and a "Letters to the Editor" section.