  We study the band structures and the associated contact points for a
phosphorene superlattice made up of two periodic areas. We use the boundary
conditions to extract an equation describing the dispersion relation after
obtaining the eigen-wavefunctions. We show that energy transforms into linear
behavior near contact points, and fermions move at different speeds along $x$-
and $y$- directions. It was discovered that the periodic potential caused
additional Dirac points, which we located in $k$-space by establishing their
positions. We demonstrate that the barrier height and width can be used to
adjust the energy gap and modify the contact points. It might be that our
findings will be useful in the development of phosphorene-based electronic
devices.
