A Dual-Band Low SAR Microstrip Patch Antenna with Jean Substrate 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 : 2024-03-23 DOI:10.1155/2024/5076232

Wanwisa Thaiwirot, Yotrawee Hengroemyat, Thamonwan Kaewthai, Prayoot Akkaraekthalin, Suramate Chalermwisutkul

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引用次数: 0

Abstract

This paper presents a low-profile dual-band microstrip patch antenna operated at the 2.45/5.8 GHz ISM bands, targeting wireless body area network (WBAN) applications. The proposed antenna is fabricated on a jean substrate measuring 74 × 82 mm². The four corners of the conventional rectangular patch are cut to activate an additional operating frequency and to enhance the radiation pattern. The circular slot is added to the radiating patch to fine-tune the desired frequencies. The measured impedance bandwidth of the proposed antenna at 2.45 GHz and 5.8 GHz bands is 3.68% (2.40 GHz–2.49 GHz) and 3.81% (5.67 GHz–5.89 GHz), respectively. The measured maximum gains are 3.08 dBi at 2.45 GHz and 2.15 dBi at 5.8 GHz. Moreover, the antenna’s performance when placed on flat and rounded body surfaces is also investigated. The proposed antenna achieves stable radiation pattern and low specific absorption rate (SAR) value with low complexity in design. The results indicate that the proposed antenna can be a promising candidate for WBAN applications.

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一种用于 WBAN 应用的双频低 SAR 微带贴片天线（带 Jean 基底面

本文针对无线体域网（WBAN）应用，介绍了一种工作在 2.45/5.8 GHz ISM 频段的扁平双频微带贴片天线。所提议的天线是在尺寸为 74×82 mm2 的牛仔布基板上制造的。传统矩形贴片的四个角被切割，以激活额外的工作频率并增强辐射模式。在辐射贴片上增加了圆形槽，以微调所需的频率。拟议天线在 2.45 GHz 和 5.8 GHz 频段的测量阻抗带宽分别为 3.68% （2.40 GHz-2.49 GHz）和 3.81% （5.67 GHz-5.89 GHz）。测得的最大增益在 2.45 GHz 时为 3.08 dBi，在 5.8 GHz 时为 2.15 dBi。此外，还研究了天线放置在扁平和圆形机身表面时的性能。拟议的天线实现了稳定的辐射模式和较低的比吸收率（SAR）值，且设计复杂度较低。结果表明，所提出的天线在无线局域网应用中大有可为。

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

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.