增强的隔离 独特的碎形缩小型MIMO天线,具有相同的圆和交叉,用于无线使用
Nairaj Jat1, Arun Kumar2, Esraa Mousa Ali3
1Department of Physics, University of Rajasthan, Jaipur, India.
Scientific reports
|October 21, 2025
概括
本研究介绍了一种紧的超宽带碎形多输入多输出 (MIMO) 天线. 这种新的设计提供了宽带和高隔离性,适合各种无线应用.
科学领域:
- 电气工程 电气工程
- 天线理论天线理论
- 无线通信无线通信
背景情况:
- 对于现代无线系统而言,对紧,高性能天线的需求正在增加.
- 现有的多输入多输出 (MIMO) 天线经常面临尺寸,隔离和带宽方面的挑战.
- 碎形几何学提供了一种在较小的足迹中设计具有增强性能的天线的方法.
研究的目的:
- 设计,模拟和实验验证一个紧的超宽带 (UWB) 基于碎形的MIMO天线.
- 为了实现高隔离和阻抗匹配,以提高MIMO性能.
- 评估天线适用于各种当代无线通信技术的适用性.
主要方法:
- 基于四个圆辐射元件的碎形MIMO天线的概念开发和模拟.
- 整合了一个圆形口和一个U槽,改进了地面结构.
- 在FR-4基板上制造,并对模拟结果进行实验验证.
主要成果:
- 拟议的天线在3GHz到24GHz之间运行,覆盖广泛的频谱.
- 实现了高隔离率 (≤-21dB),低的外相关系数 (ECC<0.004) 和多样性增长 (>9.98).
- 在整个操作带宽中,证明回报损失<-10dB,增益超过2dBi.
结论:
- 紧的UWB碎形MIMO天线表现出卓越的性能,包括宽带宽和高隔离性.
- 该设计适用于各种应用,如卫星通信,雷达,5G和物联网.
- 模拟和实验结果之间的强烈一致性验证了天线的设计和功能.
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