Design of Compact Dual-Band Eighth-Mode SIW Antenna for On-Body ISM Band Application

IF 3.4 3区计算机科学 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS

IEEE Access Pub Date : 2024-10-02 DOI:10.1109/ACCESS.2024.3472310

Muthukumara Rajaguru Kattiakara Muni Samy;Abhishek Gudipalli

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Abstract

In this work, a dual-band, compact, eight-mode substrate-integrated waveguide (EMSIW) antenna is presented for 2.4 GHz and 5.8 GHz Wireless Body Area Networks (WBANs) applications. The electrical size of the proposed antenna is reduced by 1/8th compared to a conventional rectangular SIW cavity resonator by using the EMSIW approach. With the eight-mode concept, the dominant mode is preserved at the same frequency while achieving a large reduction in antenna size. The dominant mode’s resonance frequency is independently adjusted to 2.4 GHz, and a higher-order mode operates at 5.8 GHz. When both slots are loaded in an EMSIW, the radiation pattern at 5.8 GHz is enhanced in the broadside direction.The antenna’s on-body performance is validated using a biological phantom model at 2.4 GHz and 5.8 GHz, demonstrating lower sensitivity. The antenna’s simulated efficiency and measured gain in free space are 5.9 dBi and 60% and 3.8 dBi and 60%, respectively. The simulated Specific Absorption Rate (SAR) values are within acceptable limits for on-body WBAN applications, attributed to the predominantly unidirectional radiation from the antenna resulting in low SAR values. Additionally, the measurement results align well with the simulation outcomes.

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为车身 ISM 波段应用设计紧凑型双频第八模式 SIW 天线

本研究针对 2.4 GHz 和 5.8 GHz 无线体域网 (WBAN) 应用，提出了一种双频、紧凑型、八模式基底集成波导 (EMSIW) 天线。通过使用 EMSIW 方法，与传统的矩形 SIW 腔谐振器相比，所提天线的电气尺寸缩小了 1/8。采用八模式概念，在大幅缩小天线尺寸的同时，主导模式仍保持相同频率。主模的谐振频率被独立调整到 2.4 GHz，高阶模的工作频率为 5.8 GHz。当两个槽都装入 EMSIW 时，5.8 GHz 的辐射模式在宽边方向得到增强。该天线的体外性能通过 2.4 GHz 和 5.8 GHz 下的生物模型进行了验证，显示出较低的灵敏度。天线在自由空间的模拟效率和测量增益分别为 5.9 dBi 和 60%，以及 3.8 dBi 和 60%。模拟的比吸收率（SAR）值在人体 WBAN 应用的可接受范围内，这是因为天线主要是单向辐射，导致 SAR 值较低。此外，测量结果与模拟结果非常吻合。

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

IEEE Access COMPUTER SCIENCE, INFORMATION SYSTEMSENGIN-ENGINEERING, ELECTRICAL & ELECTRONIC

CiteScore

9.80

自引率

7.70%

发文量

6673

审稿时长

6 weeks

期刊介绍： IEEE Access® is a multidisciplinary, open access (OA), applications-oriented, all-electronic archival journal that continuously presents the results of original research or development across all of IEEE''s fields of interest. IEEE Access will publish articles that are of high interest to readers, original, technically correct, and clearly presented. Supported by author publication charges (APC), its hallmarks are a rapid peer review and publication process with open access to all readers. Unlike IEEE''s traditional Transactions or Journals, reviews are "binary", in that reviewers will either Accept or Reject an article in the form it is submitted in order to achieve rapid turnaround. Especially encouraged are submissions on: Multidisciplinary topics, or applications-oriented articles and negative results that do not fit within the scope of IEEE''s traditional journals. Practical articles discussing new experiments or measurement techniques, interesting solutions to engineering. Development of new or improved fabrication or manufacturing techniques. Reviews or survey articles of new or evolving fields oriented to assist others in understanding the new area.