A mobile wireless communications device may include a portable housing, a
dielectric substrate carried by the portable housing having a front side
facing toward a user and a back side opposite the front side, and a
ground plane carried by the dielectric substrate. The device may further
include at least one circuit carried by the dielectric substrate, and an
antenna carried by the dielectric substrate adjacent an end thereof and
electrically connected to the at least one circuit. A ground patch may be
adjacent the front side of the dielectric substrate that is electrically
connected to the ground plane and spaced apart from and at least
partially overlapping the antenna.