接地L形角拥抱补丁阵列偏振转换元表面与多带和宽带特征兼容
Shi Kong1,2, Yifei Zhang1,2, Ziheng Fu3
1China Airborne Missile Academy, Luoyang 471009, China.
Micromachines
|November 27, 2025
概括
这项研究引入了一种新型的超表面,可以有效地在多个频段和超宽频谱中旋转线性极化. 这一突破有利于先进的雷达和无线通信系统.
科学领域:
- 电磁学和元材料的使用
- 应用物理 应用物理
- 电气工程 电气工程
背景情况:
- 超表面具有独特的电磁性质.
- 高效的极化控制对于先进的通信和雷达系统至关重要.
- 实现多带和宽带两种极化旋转都是一项重大挑战.
研究的目的:
- 设计和验证一个线性偏振旋转器的 metasurface.
- 为了在多个频段中实现高极化转换比率.
- 为了证明超宽带极化转换能力.
主要方法:
- 一个接地阵列的L形角拥抱补丁被提出.
- 进行了电磁模拟来分析性能.
- 进行实验验证,以确认模拟结果.
主要成果:
- 超表面在四个不同的频段 (5.7-6.2,7.0-8.7,11.2-13.9和16.7-18.0 GHz) 中实现了>90%的极化转换比率.
- 在四个共振点观察到接近单位的转换效率.
- 在超宽频域 (5.5-18.1 GHz) 上证明了有效的偏振转换.
结论:
- 拟议的超表面表现出有价值的多带和宽带极化旋转特征.
- 这种设计适用于复杂的电磁环境.
- 潜在的应用包括多功能雷达和超宽带无线通信系统.
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