概括
这项研究介绍了一种可重新配置的双极化超表面天线. 这种创新的设计为高级应用提供可调节的光束成型和雷达截面 (RCS) 减小.
科学领域:
- 电磁和天线工程 电磁和天线工程
- 甲基材料和甲基表面.
- 微波和射频工程 微波和射频工程
背景情况:
- 超表面天线具有独特的电磁性质.
- 可重新配置的天线对于自适应通信系统至关重要.
- 控制极化和散射是先进天线功能的关键.
研究的目的:
- 提出一种可重新配置的双极化超表面天线.
- 为了证明对辐射和散射功能的独立控制.
- 为了实现可调节的光束成形和雷达截面 (RCS) 减小.
主要方法:
- 一个单元结构的设计,其中有一个中央补丁,半封闭元件和可调节的电阻.
- 使用可变电阻来实现为x和y两极化实现180°的散射相差.
- 开发一个可调节阵列,用于光束偏移和复杂的散射.
主要成果:
- 该单元结构具有出色的辐射性能和独立的辐射/散射控制.
- 通过调整电阻,实现了两种偏振的180°散射相差.
- 证明了功能,包括双光束,四光束和RCS减速.
- 获得的阻抗匹配带宽为9GHz到10.6GHz,峰值增益为23.2dBi.
- 实验验证证证实与模拟结果的良好一致.
结论:
- 拟议的可重新配置的双极化超表面天线提供了多样化的功能.
- 辐射和散射的独立控制可以实现先进的应用.
- 该设计在带宽,增益和光束转向方面表现出色.
相关概念视频
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