大规模和小规模的光束转向分相阵列天线使用可变相BLC用于毫米波应用
Fayyadh H Ahmed1, Salam K Khamas1
1Electromagnetics, Wireless Hardware & RF Devices Group, School of Electronic and Electrical Engineering, University of Sheffield, Sheffield S1 3JD, UK.
Sensors (Basel, Switzerland)
|June 27, 2025
概括
本研究介绍了一种可切换的分支线联接器 (BLC),用于可变相位移和恒定输出功率. 该设计允许在相位阵列天线中实现差分束转向,这对于5G无线系统至关重要.
科学领域:
- 微波工程 微波工程
- 天线系统天线系统
- 无线通信无线通信
背景情况:
- 分支线合器 (BLC) 是微波系统中的基本组件.
- 实现可变相位移与恒定输出功率是阶段阵列天线设计的一个关键挑战.
- 现有的解决方案往往涉及庞大或复杂的相位转移机制.
研究的目的:
- 介绍一种能够进行可变相位移的新型可切换分支线合器 (BLC).
- 为了在不同的相位转移状态中保持恒定的输出功率.
- 为了演示BLC在天线阵列的差异束转向中的应用.
主要方法:
- 整合了一个新的延迟线结构与PIN二极管切换在BLC臂.
- 在半月形的延伸上使用数字间电容器 (IDC) 来修改当前路径长度.
- 通过PIN二极管控制对延迟时间进行差异调整,以实现可变相位移.
- 使用CST微波工作室进行模拟,并在RO4003C基板上进行制造.
主要成果:
- 可切换的BLC实现了从10°到20°的增量相位移,覆盖了从-3°到150°的范围.
- 与两元天线阵列的集成证明了差异光束方向从-27°到25°.
- 阶段阵列天线实现了大约7dBi的平均实现增益.
结论:
- 拟议的可切换BLC有效地提供可变相位移,同时保持恒定输出功率.
- 设计方便差异束方向,显示先进天线系统的前景.
- 这种新的BLC适用于未来的Butler矩阵式光束成形网络在5G无线应用中.
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