A Flexible Multiband Dendritic Structure Fractal Antenna for 4G/5G/WLAN/Bluetooth 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 : 2023-08-31 DOI:10.1155/2023/6496757

Zhen Yu, Guodong Zhang, Xiaoying Ran, Ruirong Niu, Runzhi Sun, Ziheng Lin, Zewei Lu

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Abstract

In this study, a flexible multiband fractal antenna mimicking dendrite structure is proposed and designed by combining bionics and fractal theory. The dendritic structure of neurons is extracted and simplified into a simple and clear geometric structure. The initial antenna model is obtained by fractal operation on the geometric structure, and finally, four effective bands are obtained. The antenna is printed on a 50^∗70^∗0.1 mm³ polyimide dielectric board and fed by a coplanar waveguide. This paper discusses the effect of the human body on the performance of the antenna and the robustness of the antenna in the bending regime. The gain, efficiency, and cross-polarization of the antenna were tested using a microwave anechoic chamber. The measured antenna covers 1.37 GHz-1.93 GHz (relative bandwidth 35%), 2.25 GHz-2.51 GHz (relative bandwidth 10.7%), 3.13 GHz-3.81 GHz (relative bandwidth 19.3%), and 4.46 GHz-5.5 GHz (relative bandwidth 21.1%) four operating frequency bands. The maximum gain is 6.05 dBi and the maximum efficiency is 91.05%. The antenna can be used for Bluetooth WLAN (Wireless Local Area Network), 4G (4th Generation Communication System), 5G (5th Generation Mobile Communication System), WiMAX (Worldwide Interoperability for Microwave Access), etc. The test results are in good agreement with the simulation results, which proves that the antenna can meet various wireless communication requirements.

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一种用于4G/5G/WLAN/蓝牙应用的柔性多波段树突状结构分形天线

本研究结合仿生学和分形理论，提出并设计了一种模拟枝晶结构的柔性多波段分形天线。提取神经元的树突结构，并将其简化为简单清晰的几何结构。通过几何结构的分形运算得到初始天线模型，最终得到4个有效波段。天线印刷在50 * 70 * 0.1 mm3聚酰亚胺介电板上，并由共面波导馈电。本文讨论了人体对天线性能的影响以及天线在弯曲状态下的鲁棒性。利用微波消声室对天线的增益、效率和交叉极化进行了测试。测试天线覆盖1.37 GHz ~ 1.93 GHz(相对带宽35%)、2.25 GHz ~ 2.51 GHz(相对带宽10.7%)、3.13 GHz ~ 3.81 GHz(相对带宽19.3%)和4.46 GHz ~ 5.5 GHz(相对带宽21.1%)四个工作频段。最大增益为6.05 dBi，最大效率为91.05%。该天线可用于蓝牙WLAN(无线局域网)，4G(第四代通信系统)，5G(第五代移动通信系统)，WiMAX(全球微波接入互操作性)等。测试结果与仿真结果吻合较好，证明该天线能够满足各种无线通信需求。

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.