宽带循环极化单平面交叉双极天线的设计
Heesu Wang1, Yong Bae Park2,3, Ikmo Park4
1Department of Electrical and Computer Engineering, Ajou University, Suwon, 16499, Republic of Korea.
Scientific reports
|April 3, 2024
概括
这项研究引入了一个单平面交叉双极天线,实现宽带循环极化辐射. 诸如角切割和宽臂之类的修改增强了阻抗匹配和轴比带宽,以改善无线通信.
科学领域:
- 电气工程 电气工程
- 电磁学 电磁学 电磁学 电磁学
- 天线理论天线理论
背景情况:
- 宽带循环偏振天线对于现代无线通信系统至关重要.
- 现有的设计往往面临带宽,阻抗匹配和轴比的限制.
- 单平面天线设计在集成和制造简单性方面具有优势.
研究的目的:
- 设计和验证具有增强宽带特性的单平面交叉双极天线.
- 为了实现广泛的阻抗带宽和可接受的轴比带宽,用于实际应用.
- 调查特定结构修改对天线性能的影响.
主要方法:
- 一个单平面交叉双极天线的设计,在一个介电基板平面上使用角切割的脂肪双极.
- 利用一个曲的线条线连接垂直的二极极臂,以产生循环极化 (CP) 辐射.
- 采用全波电磁模拟和实验验证用于设计验证.
主要成果:
- 从2.53到9.14 GHz实现了113.3%的宽阻抗带宽 (dB <-10 dB)
- 从2.65到7.75GHz获得了3dB轴比 (AR) 带宽98.1%,从2.65到7.75GHz.
- 在6.6GHz显示3.7dBic的峰值增益,其整体尺寸为45x45x0.508mm3.
结论:
- 拟议的单平面交叉双极天线表现出良好的宽带CP辐射性能.
- 角切割的脂肪二极管和宽臂有效地增强阻抗匹配和AR带宽.
- 该设计为需要宽带循环偏振信号的应用提供了可行的解决方案.
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