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MCML-BF:一个金属柱嵌入式微条线传输结构,带有偏差输送器,用于光束扫描泄漏天线设计

Shunhu Hou¹, Shengliang Fang², Youchen Fan²

¹Graduate School, Space Engineering University, Beijing 101416, China.

Sensors (Basel, Switzerland)

|June 19, 2024

概括

本研究介绍了一种使用液晶元材料 (LCM) 和嵌入金属柱微条线 (MCML) 的新型固定频束扫描天线,以实现高效的波传输和减少损失. 开发的天线在38 GHz实现了广泛的106°扫描范围,提供高增益和低损失.

科学领域:

电磁工程电磁工程电磁工程
材料科学材料科学材料科学

背景情况:

微带线 (ML) 传输结构可能会遭受消散和衰减损失.
液晶超材料 (LCM) 具有可调节的电磁性质.
射线扫描天线对于各种无线通信应用至关重要.

研究的目的:

提出一种新的固定频束扫描天线,使用LCM和金属柱嵌入微条线 (MCML) 传输结构.
为了提高电磁波传输效率并减少信号损失.
为了实现一个宽的光束扫描范围,高收益和低损失.

主要方法:

在MCML结构的传输介质中集成液晶 (LC) 层.
72个互补的分环共振器 (CSRR) 的周期安排,将TEM模式波合到自由空间.
将直流偏向电压应用于LC层,以调整其介电常数并实现光束扫描.
一个阻断部门偏差输送器的设计,以隔离来自直流源的射频信号.

主要成果:

该天线在38 GHz的频率下实现了106° (从-52°到54°) 的连续光束扫描范围.
采用金属柱的MCML结构有效降低了散射和衰减损失,提高了辐射效率.
阻断板块偏差输送器最大限度地减少了射频和直流信号之间的干扰,保持了天线性能.

结论:

拟议的基于LCM和MCML的LCM天线比现有方法具有显著的优势,包括高频带,高收益,广泛的扫描范围和低损失.
这种新的设计通过通过DC偏差调整LC层的介电常数,从而实现了高效的光束转向.
这项技术对先进的无线通信系统具有前景,需要精确的光束控制.

关键词:

射线扫描光束扫描偏差料器是一个偏差料器.这就是全息原理.液晶水晶的液体晶体是什么周期性泄漏天线的天线

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