一个带宽平顶光束和低侧的天线阵列,用于空中目标探测
Liangzhou Li1, Yan Dong1, Xiao Cai1,2
1Research Center of Applied Electromagnetics, Nanjing University of Information Science and Technology, Nanjing 210044, China.
Sensors (Basel, Switzerland)
|October 16, 2025
概括
准确的空中目标检测对于无人机安全至关重要. 本研究介绍了一种高效的天线阵列设计方法,可以分析解决加权约束问题,提高检测精度和减轻干扰.
科学领域:
- 电气工程和应用物理学
- 天线理论和设计.
- 电磁学 电磁学 电磁学 电磁学
背景情况:
- 无人机的滥用构成安全风险,需要先进的空中目标检测.
- 用于天线阵列的传统光束合成方法通常是计算密集的或需要许多元素.
- 来自不想要的方向和随机分布的目标的干扰挑战了当前的检测系统.
研究的目的:
- 为设计用于空中目标检测的天线阵列开发一种准确且计算效率高的方法.
- 为了获得具有均增益和压抑侧叶水平 (SLLs) 的成型梁.
- 证明拟议方法在减轻干扰和提高检测能力方面的有效性.
主要方法:
- 使用分析方法,通过解决一个新的加权约束问题来推导激发分布.
- 一个10 × 4平面微条形天线阵列是使用最大功率传输效率的扩展方法设计的.
- 阵列元素之间的相互合在设计过程中被充分考虑.
主要成果:
- 设计的天线阵列实现了带有均增益和低侧叶水平 (SLL) 的形状光束.
- 电子平面的宽半功率光束宽度 (HPBW) 为51.2°,SLL为-30.1 dB.
- 在H平面上,HPBW的窄幅为20.1°,SLL为-30.5dB.
结论:
- 拟议的分析方法为天线阵列提供了高效和准确的设计.
- 设计的阵列展示了空中目标检测和空中跟踪的显著能力.
- 这种方法提供了一个可行的解决方案,以提高无人机的安全性和安全性,防止无人机的滥用.
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