对于超宽带应用的双纹结构的平行和直角MIMO天线的研究
Liang Wang1, Ziwei Li1, Hongxing Zheng1
1School of Electronics and Information Engineering, Hebei University of Technology, Tianjin 300401, China.
Micromachines
|July 29, 2023
概括
本研究介绍了新的多输入多输出 (MIMO) 天线,其双结构旨在减轻超宽带 (UWB) 系统的干扰. 增强的天线为各种无线应用提供了更好的隔离和更广泛的带宽.
科学领域:
- 电气工程 电气工程
- 电磁学 电磁学 电磁学 电磁学
- 无线通信无线通信
背景情况:
- 超宽带 (UWB) 系统面临窄带系统的干扰,导致多路径色.
- 高隔离对于UWB应用中的多输入多输出 (MIMO) 天线设计至关重要.
- 现有的天线设计可能无法满足UWB中对隔离和带宽的严格要求.
研究的目的:
- 为UWB应用设计和评估具有双结构的新型MIMO天线.
- 解决干扰问题,提高UWB MIMO系统的隔离性.
- 与现有的天线解决方案相比,实现更大的带宽和更高的收益.
主要方法:
- 设计的双元和四元MIMO天线,采用U形插槽用于隙特性.
- 在辐射补丁和WiMAX和ITU带口的料上使用了U形插槽.
- 实现了双元天线的平行对称放置和四元天线的直角放置,并增加了分支负载以增强隔离.
主要成果:
- 对两元和四元天线分别实现了2.45-14.88 GHz和2.14-14.95 GHz的广泛工作带宽.
- 已证明的高隔离水平超过17dB和20dB.
- 与参考设计相比,获得了5.7dBi和5.9dBi的峰值增益,与参考设计相比,辐射效率得到了提高.
结论:
- 设计的双口MIMO天线有效减轻干扰,并满足UWB系统的高隔离要求.
- 这些天线在带宽,增益和辐射效率方面表现出卓越的性能.
- 这些天线适用于广泛的无线通信应用,需要强大的UWB性能.
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