Laminated Vehicle Windshield Antenna Hidden in Black Print Grid
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Solution Overview
Problem
Existing methods for integrating antennas into vehicle front panes, such as in the mirror base plate bracket, often impair the view and pose electromagnetic compatibility issues, and require larger mirror base plates.
Innovation Solution
A laminated glass pane with a metal layer and a black print grid that conceals an integrated antenna structure, allowing the antenna to be seamlessly integrated into the existing black print grid of the front pane, maintaining the driver's field of vision and ensuring electromagnetic compatibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an antenna is integrated into the mirror base plate bracket, then the antenna can be positioned in the front pane region, but the mirror base plate must be made larger and electromagnetic compatibility issues arise with adjacent components
Solution Approach 1:
The antenna structure is extracted from the mirror base plate bracket and integrated directly into the laminated glass pane's black print grid. This separation allows the antenna to be positioned in the front pane region without requiring an enlarged mirror base plate, while also eliminating electromagnetic compatibility issues with adjacent mirror components.
Solution Approach 2:
The black print grid on the front pane serves multiple functions: it provides the aesthetic appearance of the vehicle exterior and simultaneously acts as the substrate for integrating the antenna structure. This multi-functionality allows antenna integration without adding separate components or increasing mirror base plate size.
2Adaptability or versatility
If an antenna is mounted externally on the front pane in the grey print region, then the antenna can be positioned on the front pane, but the antenna becomes visible and impairs the driver's view
Solution Approach 1:
The antenna structure is merged with the black print grid pattern on the front pane. By integrating the antenna into the existing black print grid, the antenna becomes visually indistinguishable from the surrounding pattern, making it imperceptible to the driver while maintaining the front pane's aesthetic appearance.
Solution Approach 2:
The antenna structure is designed to match the color and pattern of the black print grid. This color matching allows the antenna to blend seamlessly into the existing design, making it invisible to the driver while still functioning as an effective antenna.
3Illumination intensity
If metallic coatings are applied to the front pane for aesthetic purposes, then the front pane appearance is improved, but the metallic coatings attenuate the transmission signal in the exterior space
Solution Approach 1:
The metallic coating is applied selectively only in regions where it does not interfere with antenna signal transmission. By controlling the local application of metallic coatings, the front pane maintains its aesthetic appearance in non-critical areas while allowing optimal signal transmission in the antenna region.
Solution Approach 2:
The front pane is divided into different functional zones: areas with metallic coatings for aesthetic purposes and areas without coatings or with reduced coating density for optimal antenna signal transmission. This segmentation allows both aesthetic requirements and signal transmission requirements to be satisfied simultaneously.
Data Source
AI summary
A laminated glass pane, such as a front pane for a motor vehicle, includes at least two glass layers including a first glass layer and a second glass layer. The laminated glass pane includes a film disposed between the first and second glass layers. The laminated glass pane includes a metallic layer disposed on the first glass layer or the second glass layer, in which the metallic layer includes a recess. The laminated glass plane includes a first black print grid at least partially covering the recess of the metallic layer. The laminated glass plane includes an antenna structure disposed between the first and second glass layers, in which the antenna structure is covered by the first black print grid.