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A simple formulation of absorbing boundary conditions with higher order approximation is proposed for the finite-difference time-domain (FD-TD) method. Although this formulation is based on the third order approximation of the one-way wave equations, the authors have succeeded in reducing it to an equation in a form quite similar to the second order approximation.
Inspec keywords: electromagnetism; finite difference time-domain analysis
Other keywords:
Subjects: Electric and magnetic fields; Classical electromagnetism