灵活的四端口MIMO天线加载频率选择面用于车身上的应用
Manish Sharma1, Dinesh Kumar Singh2, Kanhaiya Sharma3
1Chitkara University Institute of Engineering and Technology, Chitkara University, Rajpura, Punjab, India.
Scientific reports
|November 3, 2025
概括
这项研究引入了一种新型的双带MIMO天线,具有频率选择性表面 (FSS) 以提高收益. 该设计实现了宽带宽和优良的空间多样性,使其适合先进的无线应用.
科学领域:
- 电磁工程 电磁工程 电磁工程
- 天线理论和设计.
- 无线通信无线通信
背景情况:
- 多输入多输出 (MIMO) 天线对于现代无线系统至关重要.
- 增益增强和带宽扩展是天线设计中的关键挑战.
- 频率选择性表面 (FSS) 提供了一种用于电磁波操纵的方法.
研究的目的:
- 设计和分析一个双带四端口MIMO天线.
- 为了提高天线增益,使用负载频率选择面 (FSS).
- 评估天线的性能,包括带宽,空间多样性和特定吸收率 (SAR).
主要方法:
- 在罗杰斯基板上使用了一种新的辐射补丁和修改的矩形地面.
- 在FR4基板上的天线下方集成了一个5x5的FSS.
- 用特征模式分析 (CMA) 来理解共振模式.
- 模拟了ECC,DG,TARC,CCL和MEG等关键绩效指标.
主要成果:
- 该天线实现了双频段运行,带宽为4.04至6.64 GHz和7.44至16.60 GHz.
- 使用FSS记录了10.77dBi的最大峰值增益.
- 优秀的空间多样性被证明是ECC<=0.07和DG>=9.70dB.
- 在整个操作频段中观察到低特异吸收率 (SAR) 值.
结论:
- 拟议的双带四端口MIMO天线与FSS有效地提高了收益和带宽.
- 该设计表现出卓越的空间多样性性能.
- 该天线符合低SAR值的安全标准,适用于各种无线应用.
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