arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2312.14554physics.class-phphysics.comp-phphysics.optics
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非互易结构的特征模

Characteristic Modes of Nonreciprocal Structures

Niklas Wingren, Daniel Sjöberg, Mats Gustafsson, Johan Lundgren, Miloslav Capek, Lukas Jelinek, Kurt Schab

AI总结:

本文将特征模分解的散射公式推广到无损耗非互易散射体,揭示了非对称相位递进等新现象,并提出了基于模态数据的非互易性指标。

摘要:

利用特征模分解的散射公式,将模态分析扩展到打破时间反演对称性的无损耗散射体。这使得能够对包含回旋介质或运动介质的器件进行特征模分析。由此产生的非互易性引入了在互易情形中未观察到的特征,例如特征远场中的非对称相位递进。通过不同复杂度的示例仔细讨论了这些新现象。还引入了基于模态数据的非互易性指标。

英文摘要:

The scattering formulation of characteristic mode decomposition is utilized to extend modal analysis to lossless scatterers breaking time-reversal symmetry. This enables characteristic modes analysis on devices containing gyrotropic or moving media. The resulting nonreciprocity introduces features not observed in reciprocal scenarios, such as asymmetric phase progression in characteristic far fields. These new phenomena are carefully discussed using examples of varying complexity. Indicators of nonreciprocity based on modal data are also introduced.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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