一个用于UWB应用的四元串形MIMO天线系统
1Electrical and Electronics Engineering Department, Faculty of Engineering and Natural Sciences, Istanbul Medipol University, Istanbul 34810, Turkey.
Micromachines
|October 28, 2023
概括
这项研究引入了一种新的刺形超宽带 (UWB) 多输入多输出 (MIMO) 天线用于微波成像. 拟议的UWB MIMO天线系统在生物医学应用中表现出色,包括瘤检测.
科学领域:
- 电气工程 电气工程
- 生物医学工程 生物医学工程
- 电磁学 电磁学 电磁学 电磁学
背景情况:
- 微波成像需要带宽和高性能天线.
- 现有的天线设计往往面临的挑战是实现足够的隔离和医疗应用的收益.
- 发展紧而高效的天线系统对于推进微波成像技术至关重要.
研究的目的:
- 设计和评估一个新的CoPlanar-Waveguide (CPW) 养的状超宽带 (UWB) 多输入多输出 (MIMO) 天线系统.
- 评估天线系统适用于微波成像,特别是用于生物医学应用,如瘤检测.
- 优化MIMO配置以改善隔离和整体系统性能.
主要方法:
- 一个刺形的天线元件在RO5880基板上设计和制造.
- 实施了四个天线的MIMO配置,并采用了改善隔离的结构.
- 对天线系统的性能进行了表征,包括带宽,增益,辐射模式和MIMO参数 (ECC,DG).
- 进行时间域分析和模拟以检测乳腺幻影瘤.
主要成果:
- 该UWB天线实现了3.8至12.7GHz的带宽.
- 单元和MIMO系统实现的最大实现增益分别为3.5dBi和5.3dBi.
- 获得了令人满意的MIMO参数 (ECC,DG),适用于医学成像.
- 模拟和测量结果显示出极好的一致性,验证了天线的设计.
结论:
- 拟议的状UWB MIMO天线系统是微波成像和生物医学应用的有希望的候选者.
- 该天线的紧尺寸,宽带宽和良好的性能特性使其适合集成到医疗设备中.
- 乳腺幻影的成功模拟证明了其在实用瘤检测应用中的潜力.
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