Wideband transparent elliptical antenna applique for attachment to glass
AssigneeGM Global Technology Operations LLC
InventorsTimothy J. Talty, Amit M. Patel, Keerti S. Kona, James H. Schaffner, Hyok Jae Song, Duane S. Carper, Eray Yasan
Life of this patent
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Abstract
A thin film, flexible, co-planar waveguide (CPW), antenna structure suitable to be mounted on vehicle glass and that has particular application for MIMO LTE applications in, for example, the 0.46-3.8 GHz frequency band. The antenna structure includes a planar antenna formed on a substrate that includes a ground plane having an elliptical cut-out slot section defined within an outer perimeter portion of the ground plane and an antenna radiating element extending into the slot from the perimeter portion.
Claims21
An 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 thin film substrate opposite to the adhesive layer, said planar antenna including a ground plane having an elliptical cut-out slot section defined within an outer perimeter portion of the ground plane, said antenna further including an antenna radiating element extending into the slot from the perimeter portion;
- wherein the antenna radiating element is at least one of a hexagonal-shaped antenna radiating element, and a U-shaped antenna radiating element.
An 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 thin film substrate opposite to the adhesive layer, said planar antenna including a ground plane having an elliptical cut-out slot section defined within an outer perimeter portion of the ground plane, said antenna further including an antenna radiating element extending into the slot from the perimeter portion;
- wherein the antenna radiating element is at least one of a hexagonal-shaped antenna radiating element, and a U-shaped antenna radiating element, and wherein the antenna provides signals for a multiple-input multiple output (MIMO) long term evolution (LTE) cellular system operating in the 0.46-3.8 GHz frequency band.
An antenna structure comprising:
- a dielectric structure;
- a thin film substrate adhered to the dielectric structure by an adhesive layer;
- a planar antenna formed on the thin film substrate opposite to the adhesive layer, said planar antenna including a ground plane having an elliptical cut-out slot section defined within an outer perimeter portion of the ground plane, said antenna further including at least one of a hexagonal-shaped antenna radiating element, and a U-shaped antenna radiating element extending into the slot from the perimeter portion;
- and
- a co-planar waveguide feed structure comprising a feed structure slot in the ground plane open to the elliptical cut-out slot and a signal line extending from the antenna element into said feed structure slot, wherein said feed structure slot and said signal line are substantially aligned along the minor axis of the elliptical cut-out slot.
Dependencies are inferred from the claim text.