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The Modified Difference Equation Near the Sharp Metal Edge in FDTD Grid

Pei Yu-ling, Pla Uni

Abstract

The modified difference equation near the sharp metal edge in FDTD grid is presented in this paper.In order to test the efficiency of new FDTD equations,we use a stripline and V-shape antenna,which have two sharp edges diagonal to the cell cube in FDTD grid.Compared with staircase approximation, a dramatic improvement in computed accuracy is observed.

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Available abstract

Key concepts: Finite-difference time-domain method, Grid, Enhanced Data Rates for GSM Evolution, Diagonal, Stripline, Mathematics, Mathematical analysis, Finite difference method