On the field leakage of the leapfrog ADI-FDTD method for nonpenetrable targets
Gan, Theng Huat
Tan, Eng Leong
Date of Issue2014
School of Electrical and Electronic Engineering
This letter investigates the field leakage of the leapfrog alternating-direction-implicit finite-difference time-domain (ADI-FDTD) method for nonpenetrable targets. The update equation for lossy media using time-averaging scheme is reviewed. Investigation reveals that the leapfrog ADI-FDTD method has substantial nonphysical field leakage within the target. To overcome the field leakage, a simple approach is proposed. Numerical results are presented to validate the proposed approach.
DRNTU::Engineering::Electrical and electronic engineering
Microwave and optical technology letters
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