Mur absorbing boundary condition for 2-D leapfrog ADI-FDTD method

Author

Gan, Theng Huat ; Tan, Eng Leong

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore

fYear

2012

fDate

27-29 Aug. 2012

Firstpage

3

Lastpage

4

Abstract

This paper presents the implementation of the Mur absorbing boundary condition (ABC) for the two-dimensional (2-D) transverse electric (TE) leapfrog alternating-direction-implicit finite-difference time-domain (ADI-FDTD) method. The electric and magnetic field components for the leapfrog ADI-FDTD method are updated implicitly and thus, additional considerations need to be ensured for implementation of the boundary conditions. The first-order Mur updating equation is implemented for both the electric and magnetic field updates. Numerical results for the reflection errors and late time stability are presented.

Keywords

electromagnetic wave absorption; finite difference time-domain analysis; stability; 2D TE leapfrog ADI-FDTD method; Mur ABC; Mur absorbing boundary condition; alternating-direction-implicit finite-difference time-domain method; electric field; first-order Mur updating equation; late time stability; magnetic field component; reflection error; transverse electric; Boundary conditions; Equations; Finite difference methods; Magnetic domains; Mathematical model; Numerical stability; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (APCAP), 2012 IEEE Asia-Pacific Conference on

Conference_Location

Singapore

Print_ISBN

978-1-4673-0666-9

Type

conf

DOI

10.1109/APCAP.2012.6333119

Filename

6333119