具有高隔离性和宽带特征的圆极化MIMO补丁天线用于WLAN应用程序
Phuong Kim-Thi1, Tung The-Lam Nguyen2
1Faculty of Electrical and Electronics Engineering, ThuyLoi University, Hanoi, Viet Nam.
Heliyon
|September 4, 2023
概括
这项研究介绍了一种新的两元多进多出 (MIMO) 天线,提供循环极化多样性. 该设计实现了宽带宽和高隔离性,优于现有的增强无线通信解决方案.
科学领域:
- 电气工程 电气工程
- 电磁学 电磁学 电磁学 电磁学
- 天线理论天线理论
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.
- 同时实现宽带宽,高增益和优异的端口隔离仍然是一个挑战.
- 循环极化多样性是可取的,以减轻多路径色和提高信号可靠性.
研究的目的:
- 设计和验证一个紧的,双元的MIMO天线,具有循环极化多样性.
- 提高天线性能指标,包括带宽,增益和端口隔离.
- 研究寄生元素和有缺陷的地面结构的有效性,以提高性能.
主要方法:
- 作为主要辐射元件,使用了两个截断的角落微条纹补丁.
- 在单独的层中集成多个寄生元素以提高带宽,增益和隔离.
- 采用有缺陷的地面结构 (DGS) 来进一步加强港口隔离.
主要成果:
- 实现了带宽操作,带宽为9.3% (5.1-5.6 GHz).
- 获得的峰值增益超过8.0dBi.
- 证明了高端口隔离范围从30到63dB,在运行带宽上显著的40dB隔离.
- 报告了有利的MIMO绩效指标,包括低的信封相关系数和良好的多样性收益.
结论:
- 拟议的天线设计成功地将循环极化多样性与宽带操作和高隔离相结合.
- 使用寄生元件和DGS有效地解决了MIMO天线的关键性能限制.
- 这种紧的设计与现有的相关工程相比,提供了卓越的性能,使其适用于先进的无线应用.
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