We present a multidomain spectral approach with an exterior compactified domain for the Maxwell equations for monochromatic fields. The Sommerfeld radiation condition is imposed exactly at infinity being a finite point on the numerical grid. As an example, axisymmetric situations in spherical and prolate spheroidal coordinates are discussed.

翻译：我们提出了一个多域光谱方法, 用于单色域的 Maxwell 方程式的外部压缩域 。 Sommmerfeld 辐射条件完全以无限为限定点强制施加在数字网格上。 举例来说, 讨论球形坐标和直径坐标的轴对称情况。