CPW-fed modified sleeve monopole for GPS, GLONASS, and SDARS bands

An antenna structure comprising:

• a dielectric structure;
• a thin film substrate adhered to the dielectric structure by an adhesive layer, the dielectric structure having an outer layer and an inner layer, the thin film substrate adhered to the inner layer;
• a planar antenna formed to the substrate opposite to the adhesive layer, said planar antenna including a conductive ground plane portion having a continuous outer perimeter portion with a partial slot formed therein, an L-shaped tuning sleeve extending from the ground plane portion and being electrically coupled thereto, said L-shaped tuning sleeve including a vertical portion and a horizontal portion, and a C-shaped monopole portion including a feed portion positioned within the slot, a vertical portion, a first horizontal portion extending from the vertical portion towards the horizontal portion of the L-shaped tuning sleeve and a second horizontal portion extending from the vertical portion towards the horizontal portion of the L-shape tuning sleeve;
• wherein the dielectric structure having an outer layer and an inner layer with a polyvinyl butyral (PVB) layer between the inner layer and the outer layer, the thin film substrate adhered to the inner layer, and wherein the thin film substrate adhered to an interior surface of the inner layer of the dielectric structure.

An antenna structure comprising:

• a vehicle window;
• a thin film substrate adhered to the vehicle window by an adhesive layer, the vehicle window having an outer layer and an inner layer, the thin film substrate adhered to the inner layer;
• and
• a planar antenna formed to the substrate opposite to the adhesive layer, said planar antenna including a ground plane having a continuous outer perimeter portion with a partial slot formed therein, and a tuning sleeve having a vertical portion and a horizontal portion, said planar antenna further including a radiating element positioned adjacent to the tuning sleeve and including a feed portion positioned within the slot, said radiating element further including a first horizontal portion and a second horizontal portion extending from a vertical portion towards the vertical portion of the sleeve, said ground plane being operable to generate circularly polarized signals to be received by the radiating element where the sleeve provides phase tuning of the signals, wherein the tuning sleeve is configured to provide phase tuning for right-hand circularly polarized GPS signals or left-hand circularly polarized satellite digital audio radio service (SOARS) signals;
• wherein the dielectric structure having an outer layer and an inner layer with a polyvinyl butyral (PVB) layer between the inner layer and the outer layer, the thin film substrate adhered to the inner layer, and wherein the thin film substrate adhered to an interior surface of the inner layer of the dielectric structure.

An antenna structure comprising:

• a dielectric structure;
• a thin film substrate adhered to the dielectric structure by an adhesive layer, the dielectric structure having an outer layer and an inner layer, the thin film substrate adhered to the inner layer;
• and
• a planar antenna formed to the substrate opposite to the adhesive layer, said planar antenna including a conductive ground plane having a continuous outer perimeter portion with a partial slot formed therein, and a tuning sleeve having a vertical portion and a horizontal portion, said planar antenna further including a radiating element positioned adjacent to the tuning sleeve and including a feed portion positioned within the partial slot, said radiating element further including a first horizontal portion and a second horizontal portion extending from a vertical portion towards the vertical portion of the sleeve, said ground plane being operable to generate circularly polarized signals to be received by the radiating element where the sleeve provides phase tuning of the signals;
• wherein the dielectric structure having an outer layer and an inner layer with a polyvinyl butyral (PVB) layer between the inner layer and the outer layer, the thin film substrate adhered to the inner layer, and wherein the thin film substrate adhered to an interior surface of the inner layer of the dielectric structure.