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Electronics

Electronics

Topics related to HFSS, Maxwell, SIwave, Icepak, Electronics Enterprise and more.

Relationship between the im part of resonant frequency & attenuation constant

    • 2674424416
      Subscriber

      下图显示了一个蘑菇状的EBG结构,底部有一堵电气墙,顶部有自由空间和主从边界条件。辐射有损失,材料也有损失.

      通过特征模分析,得到了下列结果.与无损结构不同,对应于模式的频率变得复杂,而不是真实。想象部分的意思是什么?能确定电子束结构的衰减常数吗?

    • Jie Yan
      Ansys Employee

      看结果图这个应该是本征模,本征模仿真可以看结构本身的谐振模式以及对应的谐振频率,不能直接来看材料衰减,可以大概通过Q值大概看出不同谐振模式下的整个结构系统的衰减特性,也就是谐振时保存能量的能力,该值越小表明系统衰减越快。

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