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

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2 Author(s)
Theng Huat Gan ; School of Electrical and Electronics Engineering, Nanyang Technological University, Singapore 639798 ; Eng Leong Tan

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.

Published in:

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

Date of Conference:

27-29 Aug. 2012