Numerical Analyses of the Realization of the DB Boundary Condition for Planar Surfaces

摘要：

　　In this paper,a realization to synthesize the recently invented concept of a DB boundary is studied numerically.The idea behind the realization is to cover a DB boundary by a quarter-wave transformer with strongly uniaxial permittivity and permeability dyadics.In the numerical computations,the extreme parameters are approximated by finite values and the deviation of the behavior of the structure from that of an ideal DB boundary is evaluated.It turns out that when the axial constitutive parameters are large but not infinite,the performance degrades for grazing-incidence waves.On the other hand,when the DB boundary below the transforming layer is approximated by a material half space with very-low refractive index,the performance of the DB response suffers for wave spectrum close to the normal incidence.

作者: Ari Sihvola Ismo V.Lindell

作者单位: Department of Radio Science and Engineering,School of Science and Technology Aalto University,Box 13000,FIC00076 AALTO,Espoo,FINLAND

会议类型: 国际会议

会议名称: Progress in Electromagnetics Research Symposium 2011(2011年电磁学研究新进展学术研讨会)

会议地点: 苏州

会议语种:英文

页码: 1063-1067

在线出版日期: 2011-09-01（万方平台首次上网日期，不代表论文的发表时间）