Title :
Performance of the modified Berenger PML absorbing boundary condition for evanescent waves in three-dimensional structures
Author :
Ma, Zhewang ; Yamashita, Eikichi
Author_Institution :
Univ. of Electro-Commun., Chofu, Japan
Abstract :
The recently proposed modified PML (MPML) absorbing boundary condition is extended to three dimensions. The performance of the MPML is investigated by implementing FDTD simulation of a typical microstrip line. The dominant mode and the first higher order mode of the microstrip line are excited separately. In both cases of excitation, the reflection properties of the MPML boundaries are examined, respectively. Numerical results reveal that by choosing appropriate values of the introduced permittivity and permeability, efficient absorption of both evanescent waves and propagating waves can be realized over a wide frequency band
Keywords :
Maxwell equations; electromagnetic wave absorption; finite difference time-domain analysis; microstrip lines; waveguide theory; 3D structures; FDTD simulation; absorbing boundary condition; dominant mode; evanescent waves absorption; higher order mode; microstrip line; modified Berenger PML ABC; perfectly matched layer; permeability; permittivity; propagating wave absorption; reflection properties; three-dimensional structures; Boundary conditions; Conductivity; Finite difference methods; Frequency; Maxwell equations; Microstrip; Optical reflection; Permeability; Permittivity; Time domain analysis;
Conference_Titel :
Microwave Conference Proceedings, 1997. APMC '97, 1997 Asia-Pacific
Print_ISBN :
962-442-117-X
DOI :
10.1109/APMC.1997.659357
