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基于单向表面磁性塑的宽带隔离器,具有超高隔离能力

Tao Jiang¹, Dan Liang², Huajie Liang²

¹Huzhou Key Laboratory of Terahertz Integrated Circuits and Systems, Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, 313001, China. jiangtao@csj.uestc.edu.cn.

Scientific reports

|July 30, 2024

概括

研究人员开发了一种新的微波隔离器,使用单向表面磁质塑 (SMP). 该设备实现了超高的隔离和宽带宽,为非互惠应用提供了有前途的进步.

科学领域:

电磁学电磁学电磁学电磁学
材料科学材料科学材料科学

背景情况:

传统的隔离器通常需要庞大的磁场,并且带宽有限.
表面磁性塑在微波频率上提供独特的电磁性质.

研究的目的:

引入一种新的隔离器设计,采用单向表面磁性塑 (SMP).
用SMP波导来实验演示一个宽带,超高隔离隔离器.

主要方法:

理论分析陀螺磁和介电层以确定分散性质.
模拟和实验验证使用装有伊特铁石矿 (YIG) 的金属波导.
散射参数和场分布的表征.

主要成果:

确定了一个单向SMP模式,显示单向传输.
实验原型实现了80dB的隔离和1dB的插入损失.
通过磁性偏差证明传输带调性,使用10 Oe偏差场实现>50%的相对带宽.

结论:

与传统设备相比,开发的单向SMP隔离器提供了卓越的隔离和更广泛的带宽.
隔离器需要显著更小的磁偏差场,表明小型非互惠设备的潜力.
这项技术在微波和非互惠设备工程中显示出先进应用的前景.

关键词:

陀螺磁体是指一个磁体.隔离器的隔离器没有互惠的不互惠.表面磁性塑 (SMPs) 是一种磁性塑.伊特铁石榴石 (YIG) 铁酸盐

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