宽带循环极化和高收益的插槽补丁阵列天线实现了混合的metasurface天线
Qiang Chen1, Jun Yang1, Changhui He1
1Air Force Early Warning Academy, Wuhan 430019, China.
Sensors (Basel, Switzerland)
|June 19, 2024
概括
这项研究引入了一种新的混合超表面天线,实现宽带圆极化和高增益. 该设计提高了先进通信系统的天线性能.
科学领域:
- 电磁学和波浪传播
- 天线理论和设计.
- 甲基材料和甲基表面.
背景情况:
- 超表面为天线增强提供独特的电磁特性.
- 同时实现宽带圆极化和高增益是天线设计的一个关键挑战.
- 补丁天线具有多功能性,但通常需要用于特定应用的性能增强.
研究的目的:
- 提出和演示一种新的混合超表面天线.
- 为了实现宽带圆极化 (CP) 和高增益特性.
- 为了增强线性向圆形极化转换 (LCPC) 能力的 metasurfaces.
主要方法:
- 一个角切割的斜槽补丁天线被用作源.
- 一个混合的超表面 (HMS) 包含一个接收器MS (RMS) 和LCPCMS被设计为一个基层.
- 一个改进的HMS (IHMS) 使用CMA和E场模拟进行了开发和分析.
- 一个2x2阵列天线与连续旋转被制造和测量.
主要成果:
- 该LCPC MS单元表现出宽带LCPC能力.
- 与原来的HMS相比,改进的HMS表现出优越的宽带LCPC.
- 2x2阵列天线实现了60.5%的S11带宽和2.85GHz的3dB轴比 (AR) 带宽.
- 记录了15.1dBic的峰值增益,其低档案为0.09λ0.0.
结论:
- 拟议的混合超表面天线有效地实现宽带循环极化和高增益.
- 改进的混合超表面设计显著提高了LCPC的性能.
- 开发的天线阵列显示了先进的无线通信应用的有希望的结果.
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