Dual polarized wideband lte thin film antenna

An antenna structure that is a dual-polarized antenna structure in the orthogonal vertical and horizontal directions, said antenna structure comprising:

• a vehicle window;
• a thin film substrate adhered to the vehicle window by an adhesive layer;
• and
• a planar antenna formed on the substrate opposite to the adhesive layer, said planar antenna including a ground plane that is generally rectangular in shape and includes a cut-out slot section defined within an outer perimeter portion of the ground plane, said ground plane including a conductive line extending across the slot section, said antenna further including a first U-shaped antenna radiating element extending into the slot section from one side of the perimeter portion and being on one side of the conductive line and a second U-shaped antenna radiating element extending into the slot section from an orthogonal side of the perimeter portion and being on an opposite side of the conductive line, wherein the first antenna element and the second antenna element operate in the same frequency band and provide signals for a multiple-input multiple output (MIMO) long term evolution (LTE) cellular system.

An antenna structure that is a dual-polarized antenna structure in the orthogonal vertical and horizontal directions, said antenna structure comprising:

• a dielectric structure;
• a thin film substrate adhered to the dielectric structure by an adhesive layer;
• and
• a planar antenna formed on the substrate opposite to the adhesive layer, said planar antenna including a ground plane that is generally rectangular in shape and includes a circular cut-out slot section defined within an outer perimeter portion of the ground plane, said ground plane including a conductive line extending across the slot section, said antenna further including a first elliptical U-shaped antenna radiating element extending into the slot section from one side of the perimeter portion and being on one side of the conductive line and a second elliptical U-shaped antenna radiating element extending into the slot section from an orthogonal side of the perimeter portion and being on an opposite side of the conductive line.