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Accession Number:
ADA379806
Title:
A Three-Dimensional Finite Difference Time Domain - Perfectly Matched Layer Algorithm Based on Piecewise-Linear Approximation for Linear Dispersive Media
Descriptive Note:
Final rept. 1 Oct 1999-24 Feb 2000
Corporate Author:
AIR FORCE RESEARCH LAB KIRTLAND AFB NMDIRECTED ENERGY DIRECTORATE
Report Date:
2000-02-24
Pagination or Media Count:
22.0
Abstract:
Starting with the unsplit-field uniaxial Perfectly Matched Layer PML formulation, a second-order accurate Finite Difference Time Domain FDTD - PML algorithm is obtained using the piecewise-linear approximation. Use of the FDTD-PML algorithm results in the proper long time limit behavior where the electric field value decreases exponentially to zero inside a PML medium long after an electromagnetic pulse is incident on the PML medium. The behavior is consistent with the other PML algorithm, such as Gedneys two-step approach.
Distribution Statement:
APPROVED FOR PUBLIC RELEASE