可实现的指令天线增强测量和60 GHz室内链路的建模
Sebastián Bruna1, Mauricio Rodríguez2, Rodolfo Feick3
1Pontificia Universidad Católica de Valparaíso, Valparaíso, 2362804, Chile.
Scientific reports
|November 10, 2025
概括
毫米波链中的高指令天线在非视线 (NLOS) 室内环境中由于角传播而遭受增强退化. 宽束天线受到影响较小,捕获更多的能量并减轻损失.
科学领域:
- 无线通信是一种无线通信.
- 天线理论天线理论
- 电磁学 电磁学 电磁学 电磁学
背景情况:
- 毫米波 (mmWave) 链路需要高度指导的天线来克服高路径损失.
- 室内非视线 (NLOS) 环境带来了挑战,因为道的角度扩散降低了天线增益.
- 天线图案与频道角扩散的相互作用显著影响有效收益.
研究的目的:
- 为了评估通道角分布对室内毫米波链接中天线增强降低的影响.
- 分析增强降解,角度扩散和小规模色之间的关系.
- 在Line-Of-Sight (LOS) 和NLOS条件下描述天线有效增益.
主要方法:
- 在走廊环境中进行了广泛的室内60 GHz测量.
- 采用了五个天线,从6°到60°的不同亚齐木斯通半功率光束宽度 (HPBW).
- 经验性地描述了天线有效增益,并将结果与Rician和扩散模型进行了比较.
主要成果:
- 在NLOS场景中,窄光天线 (例如,6° HPBW) 经历了显著的增强退化 (在90百分位数上高达4.4dB).
- 宽束天线显示的增强降解不那么严重,捕获更多的事件能量.
- 里西亚模型准确预测了LOS增强降解 (<1dB).
- 使用高斯角光谱的扩散模型有效模拟了NLOS增强降解 (<1dB间隔).
结论:
- 在NLOS毫米波链路中,天线增强降低严重依赖于天线光束宽度和通道角传播.
- 宽束天线在杂乱的室内NLOS环境中更强大.
- 准确的NLOS链路建模需要考虑天线相形状和多路径干扰.
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