董焱章,刘书田.考虑超材料胞元间电磁耦合影响的五层模型[J].计算力学学报,2017,34(3):297~302 |
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考虑超材料胞元间电磁耦合影响的五层模型 |
Five-layer model considering the electromagnetic coupling effects of metamaterial unit cells |
投稿时间:2016-02-05 修订日期:2016-06-27 |
DOI:10.7511/jslx201703006 |
中文关键词: 电磁性能仿真 S参数 电磁耦合 非均质模型 超材料 |
英文关键词:electromagnetic performance simulation S parameters electromagnetic coupling nonuniform model metamaterials |
基金项目:国家自然科学基金青年科学基金(11502075,11504102);湖北省自然科学基金(2014CFB629,2015CFC789);湖北汽车工业学院博士科研启动基金(BK201501)资助项目 |
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中文摘要: |
研究了胞元间电磁耦合对多周期超材料结构散射参数的影响,阐明了电磁耦合影响的关键因素是超材料结构的均匀性。基于中间胞层的非均匀性构建了预测复杂胞元超材料结构散射参数的五层模型,其核心工作是对边胞、中间胞和核心胞的电磁本构参数实施剥洋葱式的解耦推算;数值仿真算例验证了五层模型的预测准确度及其高效性能。 |
英文摘要: |
The electromagnetic coupling effects on scattering parameters of multi-period metamaterial structure cells is studied;and it is shown that the uniformity of metamaterial structure is a key factor of the electromagnetic coupling effects.Based on non-uniformity of middle cells,a five-layer model is established to predict scattering performance of metamaterial structure complex cells through a decoupling of electromagnetic parameters from edge cells,middle cells and core cells,just like peeling an onion.The numerical simulations verify accuracy and high effectiveness of the five-layer model. |
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