Title :
Overlap Algorithm for the Nonstandard FDTD Method Using Nonuniform Mesh
Author :
Ohtani, Tadao ; Taguchi, Kenji ; Kashiwa, Tatsuya ; Kanai, Yasushi
Author_Institution :
Mitsubishi Heavy Ind. Ltd., Nagoya
Abstract :
This paper presents an overlap algorithm applied to the nonuniform nonstandard FDTD (NS-FDTD) method in two-dimensional space. The characteristics of the overlap algorithm are numerically examined and compared with the ordinary, no overlap algorithm. The reflection rate from the boundary of two meshes using the overlap algorithm is less than -80 dB, while -30 dB for the ordinary one. Consequently, it is shown that the overlap algorithm is more suitable than using no overlap in the nonuniform NS-FDTD method
Keywords :
electromagnetic wave propagation; finite difference time-domain analysis; nonuniform mesh; nonuniform nonstandard FDTD method; overlap algorithm; two-dimensional space; Dielectrics; Difference equations; Finite difference methods; Frequency; Microwave communication; Microwave theory and techniques; Reflection; Tellurium; Time domain analysis;
Conference_Titel :
Electromagnetic Field Computation, 2006 12th Biennial IEEE Conference on
Conference_Location :
Miami, FL
Print_ISBN :
1-4244-0320-0
DOI :
10.1109/CEFC-06.2006.1633166
