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一个循环极化非共振槽波导天线阵列用于广角扫描

Guodong Han¹, Weihang Liu¹

¹The 54th Research Institute of China Electronics Technology Group Corporation, Shijiazhuang 050081, China.

Sensors (Basel, Switzerland)

|May 25, 2024

概括

这项研究介绍了一种紧的循环偏振波导天线阵列,用于广角电子扫描. 这种新的设计实现了低侧叶片的广泛扫描范围,非常适合具有成本效益的雷达系统.

科学领域:

电磁学和波浪传播
天线理论和设计.
微波工程微波工程

背景情况:

传统的循环极化阵列在扫描范围和成本方面面临限制.
在紧的阵列中使用低侧叶片实现广角电子扫描是一个重大挑战.

研究的目的:

提出一个紧的,非共振的斜槽波导天线阵列.
为了实现广角扫描,圆极化和低侧叶水平.
为了证明低成本,二维电子扫描阵列的优势.

主要方法:

使用紧的元件设计,将光圈面积减少50%.
采用分层阵列配置,以减少元素间距 (0.57λ).
整合了隔离间隙,以增强圆极化和泰勒合成,用于低侧叶.

主要成果:

在相域中展示了 -45°至+45°的光束扫描范围.
实现了卓越的辐射效率和有利的VSWR.
在整个扫描范围内保持轴比低于3dB.

结论:

拟议的天线设计为低成本,广角扫描循环极化阵列提供了显著的优势.
该方法有效地扩大了这些天线的光束扫描角度.
紧的,非共振设计,增强极化性能,适用于先进的雷达应用.

关键词:

循环的极化是循环的极化.没有共振阵列的阵列.阶段式阵列天线天线雷达雷达传感器雷达传感器一个有槽的波导阵列.广角扫描扫描广角扫描

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