The Simplest V-Cycle Fast Adaptive Composite Grid ADI-FDTD Method for Two-Dimensional Electromagnetic Simulations

Author

Kong, Ki-Bok ; Shin, Yong-Sun ; Park, Seong-Ook ; Kim, Jong-Sung

Author_Institution

Inf. & Commun. Univ., Daejeon

Volume

7

fYear

2008

fDate

6/30/1905 12:00:00 AM

Firstpage

451

Lastpage

455

Abstract

An alternating-direction-implicit finite-difference time-domain (ADI-FDTD) method based on the fast-adaptive-composite grid ADI (FAC-ADI) scheme is introduced to reduce the truncation error generated when ADI-FDTD is derived from the Crank-Nicolson (CN) ADI scheme, and its efficiency is investigated. The relaxation equation and residual equation for FAC-FDTD are constructed by defining the error vector between the traditional ADI and CN FDTD formulas, and the iterative formulas are defined using the iterative schemes. A comparison of the computational efficiency between the FAC-ADI and ADI-FDTD is presented.

Keywords

computational electromagnetics; finite difference time-domain analysis; iterative methods; Crank-Nicolson ADI scheme; alternating-direction-implicit finite-difference time-domain method; fast adaptive composite grid ADI-FDTD method; iterative formulas; iterative schemes; relaxation equation; residual equation; truncation error; two-dimensional electromagnetic simulations; Fast-adaptive-composite (FAC) grid method; Maxwell´s equations; alternating-direction-implicit finite-difference time-domain (ADI-FDTD); iterative method;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2008.2002316

Filename

4570251