合成一个固定长度的均空间线性数组,以产生具有深度零值的多尔夫-切比舍夫图案,所需的侧叶水平和不同的光束宽度的侧叶水平
Ibai Otero-Gómez1, María Elena López-Martín2, Juan Antonio Rodríguez-González1
1Department of Applied Physics, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain.
Sensors (Basel, Switzerland)
|April 28, 2025
概括
本研究提出了一种新的天线阵列合成方法,扩展了Orchard-Elliott-Stern技术. 该方法实现了减少侧叶片和适应性光束宽度用于无线通信.
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:
- 天线阵列合成对于指导无线电波至关重要.
- 像Orchard-Elliott-Stern这样的现有方法在控制辐射模式方面存在局限性.
- 实现低侧叶水平 (SLL) 和适应性光束宽度对于现代无线系统至关重要.
研究的目的:
- 介绍一个扩展的Orchard-Elliott-Stern技术用于天线阵列合成.
- 在Shelkunoff单位圆上探索具有特定根配置的辐射模式.
- 为了使天线阵列的设计具有减少的侧叶和可控制的光束宽度.
主要方法:
- 果园-埃利奥特-斯特恩技术的扩展.
- 使用Shelkunoff单位圆的负实轴上的三个根 (一个在,两个在r和1/r处).
- 适用于具有不同元素数 (10,18,40) 和 λ/2 间距的多尔夫-切比舍夫图案.
主要成果:
- 该方法允许通过改变"r"来为所需的SLL提供多个解决方案,从而产生不同的振幅比.
- 结果的辐射模式显示,与传统方法相比,侧叶数减少了两个.
- 从小到大,在各种数组大小中证明了适用性.
结论:
- 这种技术为天线阵列合成提供了一种灵活的方法.
- 它有效地减少了侧叶,并提供了对光束宽度和定向性的控制.
- 这些发现直接适用于需要低SLL和自适应光束宽度模式的无线通信.
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