任意三维非共形椭球隐身斗篷的设计研究
Arbitrarily Three-Dimensional Non-conformal Ellipsoidal Invisible Cloak
  
DOI:
中文关键词:  线性坐标变换, 非共形椭球隐身斗篷, 本构参数张量, 三维场分布
英文关键词:linear coordinate transformation, non-conformal ellipsoidal invisible cloak, constitutive tensor, three-dimensional field distribution
基金项目:国家自然科学基金(61661035)
作者单位
张莉, 徐新河, 宣扬露 南昌航空大学信息工程学院,南昌330063 
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中文摘要:
      目前,对于隐身斗篷的研究只局限于内外边界共形,基于线性坐标变换理论,提出任意三维非共形椭球隐身斗篷的设计方法,并得到非共形椭球斗篷的本构参数张量表达式,该斗篷的本构参数是非均匀各向异性的。根据推导出的本构参数张量,利用基于有限元分析的电磁仿真软件,对多种类型电磁波照射时的不同几何参量的非共形椭球斗篷进行三维仿真验证,三维电场分布图证实了所推导本构参数张量的正确性。三维任意非共形椭球斗篷在几何形状选择上更加灵活,更加贴合实际应用。提出的三维任意非共形椭球斗篷也为今后隐身斗篷的设计提供一种新的途径。
英文摘要:
      Up to now, most of the studies were focused on the invisible cloak conformal with inner and outer boundaries. Based on the idea of linear coordinate transformation, arbitrarily three-dimensional non-conformal ellipsoidal invisible cloak were proposed and designed. The general formulations of the inhomogeneous and anisotropic constitutive tensors of the cloak were derived for the non-conformal ellipsoidal cloak. According to the constitutive tensors, the results of full-wave simulations by using finite-element software confirmed the validity of the constitutive parameter tensor expressions, for different types of electromagnetic wave under the irradiation of different geometric parameters of non-conformal ellipsoidal cloak. This work is more flexible and more suitable for the practical application, and also provides a feasible way to fabricate invisible cloak in the future.
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