UNCONDITIONALLY STABLE LEAPFROG ADI-FDTD METHOD FOR LOSSY MEDIA | Zendy

Theng Huat Gan | Zendy; Eng Leong Tan | Zendy

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UNCONDITIONALLY STABLE LEAPFROG ADI-FDTD METHOD FOR LOSSY MEDIA

Author(s) -

Theng Huat Gan,

Eng Leong Tan

Publication year - 2012

Publication title -

progress in electromagnetics research m

Language(s) - English

Resource type - Journals

ISSN - 1937-8726

DOI - 10.2528/pierm12090307

Subject(s) - finite difference time domain method , lossy compression , computer science , perturbation (astronomy) , boundary value problem , mathematics , mathematical analysis , optics , physics , artificial intelligence , quantum mechanics

This paper presents an unconditionally stable leapfrog alternating-direction-implicit flnite-difierence time-domain (ADI- FDTD) method for lossy media. Conductivity terms of lossy media are incorporated into the leapfrog ADI-FDTD method in an anal- ogous manner as the conventional explicit FDTD method since the leapfrog ADI-FDTD method is a perturbation of the conventional explicit FDTD method. Implementation of the leapfrog ADI-FDTD method for lossy media with special consideration for boundary con- dition is provided. Numerical results and examples are presented to validate the formulation.

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