A Wearable Dual-Band Dual-Polarized Patch Antenna for ISM Range 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 : 2024-12-04 DOI:10.1155/mmce/6490949

Pouria Shams, Mohammad Amin Honarvar

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引用次数: 0

Abstract

A compact low-profile dual-band dual-polarized wearable patch antenna, capable of working in 2.4 and 5.8 GHz ISM band for either on-body or off-body applications with different radiation patterns in each working band, is presented in this paper. The fabricated antenna consists of four layers including modified ground and patch layers and two dielectric layers made of jean fabric, and it has a radius of 30 mm with overall height of 3.4 mm fed by a single probe. The proposed structure is designed in a way that is capable of radiating linearly polarized (LP) waves in lower working frequency and circularly polarized (CP) waves in its upper working band. The ground plane is modified to ensure the dual-band radiation as well as miniaturization of the antenna. The patch of the antenna benefits from truncated corners and four circular stubs which are practically coupled with antenna’s modified ground to provide desired axial ratio and dual polarization capability. With the help of computer-based simulations, the antenna is placed on human body tissue and the calculated amount of SAR values in each band for 1 g tissue is 0.15 and 0.89 Wkg, respectively, which guarantee the safety of the human body in close proximity to the antenna.

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一种用于ISM测距应用的可穿戴双带双极化贴片天线

本文提出了一种紧凑的低轮廓双频双极化可穿戴贴片天线，该天线能够工作在2.4 GHz和5.8 GHz ISM频段，适用于身体上或身体外，每个工作频段的辐射方向图不同。该天线由改良的接地和贴片层和牛仔布制成的两层介电层组成，其半径为30 mm，总高度为3.4 mm，采用单探头馈电。该结构能够在较低的工作频带辐射线极化波，在较高的工作频带辐射圆极化波。为了保证天线的双频辐射和小型化，对地平面进行了修改。天线的贴片得益于截断的角和四个圆形短节，它们实际上与天线的修改地耦合在一起，以提供所需的轴比和双极化能力。通过计算机模拟，将天线放置在人体组织上，计算出1g组织各波段SAR值分别为0.15 Wkg和0.89 Wkg，保证了靠近天线的人体的安全。

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.