§Scattered field from a PEC mask with Cr patterns (er=-0.77-j*1.51)
§Observation plane: 4.5x4.5l2 plane, 0.05l above the patterns
§Evaluating current on the mesh (11,053 surface bases, 18,756 tetrahedron bases) by a four-level MLFMA: 8 hrs, 680 MB
of memory, 3130 iterations for
error=10-3
§Evaluating field on 90x90 observation points: 22 mins., 160 MB of memory (direct computation: 337 mins.)