用于WLAN应用的循环偏振可重新配置的MIMO天线
Tu Le-Tuan1, Thai Dinh Nguyen1, Nguyen Viet-Duc Tran1
1Faculty of Electrical and Electronic Engineering, PHENIKAA University, Yen Nghia, Ha Dong, Hanoi 12116, Vietnam.
Sensors (Basel, Switzerland)
|February 26, 2025
概括
本研究介绍了一种用于无线局域网 (WLAN) 的新型两元天线,具有可重新配置的圆极化 (CP). 该设计为多输入多输出 (MIMO) 应用提供灵活的CP模式和高性能.
科学领域:
- 电磁学和应用物理学
- 无线通信系统无线通信系统
- 超材料的应用方法
背景情况:
- 多输入多输出 (MIMO) 系统可以提高无线通信能力.
- 循环极化 (CP) 天线可以减轻极化不匹配和色.
- 可重新配置的天线为动态无线环境提供适应性性能.
研究的目的:
- 为MIMO WLAN应用提供一个简单,可重新配置的双元天线设计.
- 为了实现对个别端口的循环偏振 (CP) 状态 (RHCP/LHCP) 的灵活控制.
- 展示高性能指标,包括匹配,轴向比和端口间隔离.
主要方法:
- 一个两元天线的设计,包括一个可重新配置的供应网络,CP源和2x2单元细胞元表面 (MS).
- 使用PIN二极管来控制ON/OFF状态以实现极化重新配置.
- 通过模拟和/或在2.45 GHz进行测量来评估性能.
主要成果:
- 拟议的天线在各种操作模式中实现了低于-10dB的匹配性能.
- 在所有极化配置中,保持低于3dB的轴向比.
- 实现了超过24dB的优质端口间隔离,以及令人满意的MIMO多样性性能.
- 该设计在增益,尺寸和使用少数PIN二极管的简化开关机制方面具有优势.
结论:
- 开发的天线为MIMO WLAN系统中可重新配置的CP提供了简单有效的解决方案.
- 该设计表现出卓越的性能特征和与现有解决方案相比的实际优势.
- 这项工作有助于推进可适应和高效的无线通信天线技术.
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