用于具有明显带宽的多频段极化转换的分叉交叉元面
Pengpeng Zhang1,2, Yifei Zhang1,2, Ziang Li3
1China Airborne Missile Academy, Luoyang 471009, China.
Micromachines
|October 29, 2025
概括
这项研究引入了一种新的超表面极化转换器. 它在五个频段实现了超过90%的偏振转换比率,适用于先进的雷达和通信系统.
科学领域:
- 电磁学和元材料的使用
- 应用物理 应用物理
背景情况:
- 超表面具有独特的电磁性质.
- 高效的偏振转换对于先进的无线系统至关重要.
研究的目的:
- 设计和演示一个反射的,多频段的地表极化转换器.
- 在多个频段中实现高极化转换比率 (PCR).
主要方法:
- 使用分叉交叉补丁阵列设计用于超表面.
- 进行模拟和实验验证.
- 分析了质量因子 (Q-因子) 来描述频率响应.
主要成果:
- 在五个频段实现的PCR>90%:4.71-5.44 GHz,7.26-9.55 GHz,11.62-12.6 GHz,13.33-13.46 GHz和15.61-15.62 GHz.
- 展示了混合Q因子行为,结合宽带 (低Q) 和窄带 (高Q) 响应.
- 对高转换效率观察到明显的共振.
结论:
- 拟议的超表面表现出多功能性能,适合复杂的电磁应用.
- 该设计集成了宽带和选择性窄带偏振转换功能.
- 理想适用于需要光谱控制的多功能雷达,通信和传感系统.
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