Low profile multi-band antennas and related wireless communications devices

摘要

Low-profile antenna systems are provided including a ground plane; an upper antenna element parallel to and spaced apart from the ground plane; at least one vertical plate configured to vertically connect the upper antenna element and the ground plane; first and second metallic wings each connected at one end to respective sides of the at least one vertical plate and spaced apart from both the ground plane and the upper antenna element; an electrically floating plate on a same plane as the upper antenna element and spaced apart from the upper antenna element to provide a gap therebetween; and a metallic feed plate parallel to and between the upper antenna element and the ground plane and extending beneath the gap between the electrically floating plate and the upper antenna element. Related wireless communications devices are also provided.