用于GPS L1/L2频段和L频段卫星接收器的双感循环偏振阵列天线
Ahmed Azeez Khudhair1, Javad Nourinia2, Changiz Ghobadi3
1Department of Electrical Engineering, Urmia University, Urmia, 57561-51818, Iran.
Scientific reports
|July 19, 2025
概括
本研究介绍了一种紧的,宽带的循环偏振天线,用于L波段卫星和GPS L1/L2接收. 新的设计为全球导航卫星系统提供了更好的性能和67%的尺寸缩小.
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:
- 对于L波段卫星接收器和GPS的传统天线通常面临带宽和尺寸的限制.
- 现有的设计可能难以同时覆盖多个频段,例如GPS L1和L2,同时具有高性能.
研究的目的:
- 为L频段卫星接收器和GPS L1/L2频段开发一个宽带,双感圆极化 (CP) 交叉双极阵列天线.
- 通过提高带宽,轴向比率和减少物理尺寸来克服传统天线设计的局限性.
主要方法:
- 使用单一宽带双分支线合器与平面交叉双极阵列集成.
- 采用双带打印的二极管,以提高阻抗匹配和性能.
- 设计了一个简化的供应网络,以扩大运营带宽.
主要成果:
- 达到57.14% (1.0-1.8 GHz) 的测量阻抗带宽和46.72% (1.05-1.69 GHz) 的轴比带宽.
- 覆盖了GPS L1 (1.575 GHz) 和L2 (1.227 GHz) 频段,在右侧圆极化 (RHCP) 和左侧圆极化 (LHCP) 两种方面都有出色的轴向比光束宽度.
- 与以前的设计相比,显示天线尺寸减少了67%.
结论:
- 拟议的天线为下一代全球导航卫星系统 (GNSS) 和L频段卫星应用提供了一个紧的,高性能和具有成本效益的解决方案.
- 宽带合器和双带二极管的集成显著提高了天线性能和带宽.
- 简化的供应网络和广泛的运行带宽使天线适用于各种L频段和GNSS应用.
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