Frequency-Tunable Tri-Band Metamaterial-Inspired Antenna

IF 3.6 3区计算机科学 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS IEEE Access Pub Date : 2025-01-23 DOI:10.1109/ACCESS.2025.3533023

Kyung-Duk Jang;Jae-Hyun Lee

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Abstract

A frequency-tunable tri-band metamaterial-inspired antenna is proposed. The antenna consists of patches, interdigital capacitors, and meander lines inductors, and loaded with a split ring resonator. The metamaterial-inspired antenna can provide three band operations at 1.575/2.1/2.6 GHz, which cover the GPS band1, LTE band1, and LTE band7 applications. The antenna has three different current flows, which create different resonances. The proposed antenna can adjust each resonant frequency independently by adjusting the antenna parameters, the length of SRR, meander lines, and ground branch line, which can affect each current path. The prototype antenna has been designed and fabricated using the FR4 substrate with a thickness of 1.6 mm and a dielectric constant of 4.3. The measured return loss and far-field radiation patterns of the fabricated antenna have good agreement with the simulated results. The fabricated antenna shows well-matched impedance characteristics with a reasonable bandwidth and has an omnidirectional radiation pattern at each operating band. The proposed antenna has the advantages of multi-band, frequency-tunable characteristics, and easy fabrication, and can be widely used in various wireless mobile communication systems.

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频率可调三波段超材料启发天线

提出了一种频率可调的三波段超材料激励天线。该天线由贴片、数字间电容和曲线电感组成，并加载了一个分环谐振器。这种超材料天线可以提供1.575/2.1/2.6 GHz的三个频段工作，覆盖GPS频段1、LTE频段1和LTE频段7应用。天线有三种不同的电流流，产生不同的共振。该天线可以通过调整影响电流路径的天线参数、SRR长度、曲线和接地支路来独立调节各谐振频率。采用厚度为1.6 mm、介电常数为4.3的FR4衬底设计并制作了原型天线。测量的天线回波损耗和远场辐射方向图与仿真结果吻合较好。该天线具有匹配良好的阻抗特性和合理的带宽，并且在每个工作波段都具有全向辐射方向图。该天线具有多频段、频率可调、制作方便等优点，可广泛应用于各种无线移动通信系统中。

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.