Isolation Improvement and Bandwidth Enhancement of Dual-Band MIMO Antenna Based on Metamaterial Wall

IF 3.7 2区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-01-08 DOI:10.1109/LAWP.2025.3527688

Heming Wang;Qi Zheng;Qiwei Li;Xue-Xia Yang

{"title":"Isolation Improvement and Bandwidth Enhancement of Dual-Band MIMO Antenna Based on Metamaterial Wall","authors":"Heming Wang;Qi Zheng;Qiwei Li;Xue-Xia Yang","doi":"10.1109/LAWP.2025.3527688","DOIUrl":null,"url":null,"abstract":"A new method of isolation improvement and bandwidth enhancement for the dual-band multiple-input–multiple-ouput (MIMO) antenna based on a metamaterial wall is proposed. The proposed antenna consists of a 2 × 1 dual-band antenna and a metal-line-based metamaterial wall (MLB-MW). On the one hand, the isolation improvement is achieved by the mu-negative metamaterial (MNG) characteristic of the MLB-MW. The isolation improved by 36 dB after loading the MLB-MW. On the other hand, the bandwidth enhancement is obtained by generating additional resonance by the MLB-MW. The operating bandwidths (|<italic>S11| < −10 dB) have been increased from 3.54 GHz to 4.01 GHz and 4.72 GHz to 5.08 GHz to 3.41 GHz to 4.02 GHz and 4.67 GHz to 5.14 GHz, resulting in the bandwidth extensions of 32% and 30%, respectively. The dimension of the MIMO antenna is 0.70λL×0.29λL×0.23λL (λL is the wavelength of the lowest frequency). To validate the results, a prototype was fabricated and measured in an anechoic chamber, and the results show that the proposed antenna can be a candidate for 5G base station applications.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 5","pages":"1144-1148"},"PeriodicalIF":3.7000,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Antennas and Wireless Propagation Letters","FirstCategoryId":"94","ListUrlMain":"https://ieeexplore.ieee.org/document/10834539/","RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}

引用次数: 0

Abstract

A new method of isolation improvement and bandwidth enhancement for the dual-band multiple-input–multiple-ouput (MIMO) antenna based on a metamaterial wall is proposed. The proposed antenna consists of a 2 × 1 dual-band antenna and a metal-line-based metamaterial wall (MLB-MW). On the one hand, the isolation improvement is achieved by the mu-negative metamaterial (MNG) characteristic of the MLB-MW. The isolation improved by 36 dB after loading the MLB-MW. On the other hand, the bandwidth enhancement is obtained by generating additional resonance by the MLB-MW. The operating bandwidths (|S₁₁| < −10 dB) have been increased from 3.54 GHz to 4.01 GHz and 4.72 GHz to 5.08 GHz to 3.41 GHz to 4.02 GHz and 4.67 GHz to 5.14 GHz, resulting in the bandwidth extensions of 32% and 30%, respectively. The dimension of the MIMO antenna is 0.70λ_L×0.29λ_L×0.23λ_L (λ_L is the wavelength of the lowest frequency). To validate the results, a prototype was fabricated and measured in an anechoic chamber, and the results show that the proposed antenna can be a candidate for 5G base station applications.

查看原文本刊更多论文

基于超材料壁的双频MIMO天线隔离改进与带宽增强

提出了一种基于超材料壁的双频多输入多输出（MIMO）天线隔离改善和带宽增强的新方法。该天线由一个2 × 1双频天线和一个基于金属线的超材料壁（MLB-MW）组成。一方面，MLB-MW的mu负超材料（MNG）特性提高了隔离性能。加载MLB-MW后，隔离度提高了36 dB。另一方面，通过MLB-MW产生附加共振来获得带宽增强。工作带宽（|S11| <−10db）从3.54 GHz提高到4.01 GHz，从4.72 GHz提高到5.08 GHz，从3.41 GHz提高到4.02 GHz，从4.67 GHz提高到5.14 GHz，带宽分别提高32%和30%。MIMO天线的尺寸为0.70λL×0.29λL×0.23λL （λL为最低频率的波长）。为了验证结果，制作了一个原型并在消声室中进行了测量，结果表明所提出的天线可以作为5G基站应用的候选天线。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

IEEE Antennas and Wireless Propagation Letters 工程技术-电信学

CiteScore

8.00

自引率

9.50%

发文量

529

审稿时长

1.0 months

期刊介绍： IEEE Antennas and Wireless Propagation Letters (AWP Letters) is devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation. These are areas of competence for the IEEE Antennas and Propagation Society (AP-S). AWPL aims to be one of the "fastest" journals among IEEE publications. This means that for papers that are eventually accepted, it is intended that an author may expect his or her paper to appear in IEEE Xplore, on average, around two months after submission.