  Our research focuses on the transmission gaps of charge carriers passing
through phosphorene superlattice, which are made up of a series of barriers and
wells generating $n$ identical cells. We determine the solutions of the energy
spectrum and then transmission using Bloch's theorem and the transfer-matrix
approach. The analysis will be done on the impact of incident energy, barrier
height, potential widths, period number, and transverse wave vector on
transmission. We show that pseudo-gaps appear and turn into real transmission
gaps by increasing the number of cells. Their number, width, and position can
be tuned by changing the physical parameters of the structure. At normal
incidence, a forbidden gap is found, meaning that there is no Klein tunneling
effect, in contrast to the case of graphene. Our findings can be used to create
a variety of phosphorene-based electronic devices.
