Abstract
The situation describes a transverse magnetic field incident on a good conductor. The resulting model is an interface problem with the continuities of tangential electric and magnetic fields being the interface conditions. An approximation of Sommerfeld's radiation condition is used for the absorption of the high-frequency scattered wave. Finite-difference methods are used for discretization. Instabilities arising from implementing the radiation condition and implementation of the interface conditions make the problem difficult to treat numerically. In addition, low-frequency situations require special treatment of radiation conditions. Procedures to overcome the difficulties are presented, and the numerical results are validated by comparison with analytical solutions.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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