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一个低调的双极化高收益低交叉极化分阶阵列,用于Ku频带卫星通信

Yuhan Huang^1,2, Jie Zhang^1,2, Xiuping Li^2,3,4,5

¹Beijing Institute of Spacecraft System Engineering, Beijing Engineering Research Center of EMC and Antenna Test Technology, Beijing 100094, China.

Sensors (Basel, Switzerland)

|July 12, 2025

概括

本文介绍了一种用于Ku频道卫星通信的新型低距离相位阵列天线. 该设计实现了宽带宽,高增益和优异的隔离,使有效的动态光束扫描成为可能.

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:

卫星通信系统需要先进的天线技术来有效地传输数据.
阶段式阵列天线为动态通信链路提供关键的光束方向能力.

研究的目的:

为Ku频道卫星通信提出一个低调的双极化共享光圈相位阵列天线.
为了提高天线性能指标,如带宽,增益和隔离.
为了展示动态卫星链接的光束扫描能力.

主要方法:

使用堆叠的八角形贴片与Via环作为双极化共享孔径辐射元件.
采用最小化的三端口环联接器用于差分养,以抑制交叉极化.
集成基板集成同轴线 (SICL) 和微条线 (MS) 料网络,用于不同的极化.
优化非统一的子阵列架构,以减少侧叶水平和RF相位移模块的数量.

主要成果:

对于制造的16 × 24和32 × 24阵列天线,实现了大约21.1%的宽阻抗带宽.
已证明高频段内隔离超过36.7dB.
两个原型天线的最大收益为29 dBi和32.4 dBi.
使用发射器和接收器 (T / R) 相位移模块验证的光束扫描特征.

结论:

拟议的双极化共享光圈相位阵列天线为Ku频道卫星通信提供了一个有前途的解决方案.
该设计在带宽,增益,隔离和光束扫描能力方面表现出色.
低调的性质和优化的架构使其适合动态和高效的卫星通信应用.

关键词:

库波段卫星通信卫星通信差异化养的动物.双极化的双极化不统一的子数组.阶段式数组数组是一个阶段式数组数组.分享开口的开口.基板集成同轴线路

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