Abstract
It has been observed in experiments that the pronounced oscillationstructure in the magnetoresistance of a square antidot lattice isdrastically affected by an anisotropic deformation of the lattice. Weperform a numerical simulation on an anisotropic antidot lattice andobserve expected behavior in the magnetoresistivities. We discuss howthe classical theory of electron motion in an antidot lattice canexplain the observed anisotropy effect.