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Nonreflecting Boundary Conditions for Maxwell's Equations

✍ Scribed by Marcus J Grote; Joseph B Keller

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
234 KB
Volume
139
Category
Article
ISSN
0021-9991

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✦ Synopsis

Exact nonreflecting boundary conditions are derived for the time dependent Maxwell equations in three space dimensions. These conditions hold on a spherical surface B, outside of which the medium is assumed to be homogeneous, isotropic, and source-free. They are local in time and nonlocal on B, and they do not involve high-order derivatives. Thus, they are easy to incorporate into finite difference or finite element methods. These boundary conditions are similar to the exact nonreflecting boundary conditions for the scalar wave equation which yield high numerical accuracy.

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