Bilayer windshield with embedded antenna
First Claim
1. A transparent antenna windshield comprising one sheet of glass, a preformed sheet of thermoplastic polyurethane laminated to the inner surface of said glass sheet, and an antenna consisting essentially of elongated electroconductive wire embedded in said polyurethane sheet and adapted for coupling to a radio for use as an antenna circuit element, wherein said windshield is a bilayer windshield having a single sheet of glass disposed outward of said preformed sheet of thermoplastic polyurethane, and said embedded electroconductive element is located within the thickness of said preformed sheet in closer relation to said inner surface of said one sheet of glass than said other major surface of said preformed sheet.
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Accused Products
Abstract
A laminated glass-plastic antenna windshield having an elongated conductive element, such as a wire embedded in preferred positions by a thermoplastic polyurethane layer, which is the plastic layer of the laminated antenna windshield. The antenna windshield has a higher Q-value than similar laminated antenna windshields provided with a layer of polyvinyl butyral to carry the elongated electroconductive element and those that carry the wire in positions other than said preferred positions.
21 Citations
4 Claims
- 1. A transparent antenna windshield comprising one sheet of glass, a preformed sheet of thermoplastic polyurethane laminated to the inner surface of said glass sheet, and an antenna consisting essentially of elongated electroconductive wire embedded in said polyurethane sheet and adapted for coupling to a radio for use as an antenna circuit element, wherein said windshield is a bilayer windshield having a single sheet of glass disposed outward of said preformed sheet of thermoplastic polyurethane, and said embedded electroconductive element is located within the thickness of said preformed sheet in closer relation to said inner surface of said one sheet of glass than said other major surface of said preformed sheet.
Specification