Design and Analysis of Irregular Hexagonal Patch Antenna Using Multiport Network Model (MNM)

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 : 2024-07-29 DOI:10.1155/2024/8343100

Mishor Biswas, Soham Ghosh, Suman Dey, Kaushik Patra, Bhaskar Gupta

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Abstract

Multiport network model (MNM) of microstrip patch antennas is an extension of cavity model analysis. In MNM, electromagnetic fields present under and outside patch are modeled separately and the patch is considered as a planar element with multiple ports at its edges. The MNM approach was previously used for the analysis of different patches such as rectangular and circular. However, MNM analysis for irregular-shaped hexagonal patch antenna is not studied yet. Analysis of hexagonal patch antenna is required for its several advantages over other patches such as equivalent surface current distribution with less size compared to circular patch and higher bandwidth. In this work, the irregular-shaped hexagonal patch antenna is analyzed using MNM technique. The antenna is decomposed into rectangular and right-angle triangular segments. Multiport impedance (Z) matrices are calculated for all elements based on Green’s functions of corresponding shapes. Finally, the current distribution of the complete patch is obtained by connecting these elements using Z matrices. The irregular-shaped patch antenna is fabricated, and its responses are measured to verify the results obtained from MNM analysis. MNM can estimate antenna performance with ~3.5% average error with respect to simulated responses in terms of antenna performance parameters.

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使用多端口网络模型 (MNM) 设计和分析不规则六边形贴片天线

微带贴片天线的多端口网络模型（MNM）是空腔模型分析的延伸。在 MNM 中，贴片下方和外部的电磁场分别建模，贴片被视为边缘有多个端口的平面元件。MNM 方法以前曾用于分析矩形和圆形等不同的贴片。然而，对不规则形状的六角形贴片天线的 MNM 分析尚未研究。与其他贴片相比，六边形贴片天线具有多种优势，如等效表面电流分布、与圆形贴片相比尺寸更小、带宽更高，因此需要对六边形贴片天线进行分析。在这项工作中，使用 MNM 技术分析了不规则形状的六边形贴片天线。天线被分解成矩形和直角三角形段。根据相应形状的格林函数计算所有元件的多端口阻抗 (Z) 矩阵。最后，利用 Z 矩阵将这些元素连接起来，就得到了整个贴片的电流分布。我们制作了不规则形状的贴片天线，并对其响应进行了测量，以验证 MNM 分析得出的结果。就天线性能参数而言，MNM 估算的天线性能与模拟响应的平均误差约为 3.5%。

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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.