Patent ID: 9609530
Date: 2017-03-28
CPC Classifications: H01Q,H04W

Claim:
1. An antenna assembly comprising: a first substrate comprising: a plurality of first substrate conductive patch elements; a second substrate comprising: a first layer with at least a conductive ground plane and a plurality of pairs of apertures, wherein a number of the plurality of pairs of apertures is equal to a number of the plurality of first substrate conductive patch elements; and a second layer with at least a first transmission line feed network coupled to a first feed point and a second transmission line feed network coupled to a second feed point; a third substrate comprising: a plurality of third substrate conductive patch elements, wherein a number of the plurality of third substrate conductive patch elements is equal to the number of the plurality of first substrate conductive patch elements; a first spacer interposed between the third substrate and the second substrate, the first spacer comprising a dielectric material and at least one first spacer opening in the dielectric material, wherein the dielectric material is absent within the at least one first spacer opening; and a second spacer interposed between the first substrate and the third substrate, the second spacer comprising a dielectric material and at least one second spacer opening in the dielectric material, wherein the dielectric material is absent within the at least one second spacer opening; wherein the first transmission line feed network overlaps a first aperture of each pair of the plurality of pairs of apertures and the second transmission line feed network overlaps a second aperture of each pair of the plurality of pairs of apertures; wherein the first aperture of each pair of the plurality of pairs of apertures electromagnetically couples the first transmission line feed network and the second aperture of each pair of the plurality of pairs of apertures electromagnetically couples the second transmission line feed network to at least a respective one of the plurality of third substrate conductive patch elements; and wherein the first aperture of each pair of the plurality of pairs of apertures is orthogonal to the second aperture of each pair of the plurality of pairs of apertures; and wherein the first aperture of each pair of the plurality of pairs of apertures excites a respective stacked resonant radiating antenna element formed amongst each respective one of the plurality of first substrate conductive patch elements, each respective one of the plurality of third substrate conductive patch elements and the conductive ground plane in an electromagnetic mode corresponding to a vertical polarization far-field pattern, and wherein the second aperture of each pair of the plurality of pairs of apertures excites said respective stacked resonant radiating antenna element in an electromagnetic mode corresponding to a horizontal polarization far-field pattern.