The propagation of nonlinear dipole spin waves in a film consisting of
a two-sublattice, uniaxial, antiferromagnetic material has been inves
tigated. The external magnetic field is assumed to be parallel to the
anisotropy axis of the antiferromagnetic film and is directed parallel
, or perpendicular, to the film surface. The existence of envelope sol
itons of spin waves is predicted and conditions for their creation are
discussed.