Vehicle Window Glass Strip Electrode Antenna Integration
Solution Overview
Problem
Conventional vehicle window glasses with conductive films and antennas face challenges in maintaining a clear field of view due to the space required for strip electrodes, which can be narrowed by the blocking effect of the strip electrode when an antenna is integrated, reducing the effective area of the conductive film.
Innovation Solution
A vehicle window glass design that incorporates a conductive film with strip electrodes having gaps between them and the glass plate edges, allowing these electrodes to function as antenna conductors without additional antenna conductors, thus maintaining a clear field of view by not expanding the space between the strip electrodes and the glass plate edges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an antenna is provided in the space between the strip electrode and the glass plate edge, then the antenna functionality is achieved, but the space needs to be expanded which moves the strip electrode inward and narrows the field of view
Solution Approach 1:
The strip electrode is designed to serve dual functions: as a power supply electrode for the conductive film and as an antenna conductor. By making the strip electrode itself function as the antenna, the patent eliminates the need for a separate antenna structure, thereby avoiding the need to expand the space between the strip electrode and glass plate edge, and preserving the field of view area while achieving antenna functionality.
Solution Approach 2:
The patent merges the power supply electrode (strip electrode) and the antenna conductor into a single component. Instead of having separate structures for power supply and antenna functions, the strip electrode is configured to perform both roles simultaneously, which resolves the spatial conflict between these two functions and maintains a clear field of view.
2Adaptability or versatility
If the space between the strip electrode and glass plate edge is expanded to accommodate an antenna, then antenna functionality is achieved, but the strip electrode moves inward reducing the field of view
Solution Approach 1:
The strip electrode is designed to serve dual functions: as a power supply electrode for the conductive film and as an antenna conductor. By making the strip electrode itself function as the antenna, the patent eliminates the need to expand the space between the strip electrode and glass plate edge, thereby preserving the field of view clarity while achieving antenna functionality.
3Adaptability or versatility
If a separate antenna conductor is added between the strip electrode and glass plate edge, then antenna functionality is achieved, but the device complexity increases and the field of view is blocked
Solution Approach 1:
The strip electrode is designed to serve dual functions: as a power supply electrode for the conductive film and as an antenna conductor. This eliminates the need for a separate antenna conductor, reducing device complexity while achieving antenna functionality.
Solution Approach 2:
The patent merges the power supply electrode and antenna conductor into a single component (the strip electrode itself). This consolidation reduces the number of parts and simplifies the overall structure, avoiding the complexity that would arise from adding a separate antenna conductor.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design enhances the field of view and maintains the functionality of the conductive film by using the strip electrodes as antenna conductors, reducing the blocking effect and preserving the area of the conductive film for heating and defogging applications.
Implementation Method 1
a conductive film and a strip electrode for applying a DC voltage to the conductive film
Data Source
AI summary
A window glass for a vehicle includes a glass plate; and a conductor placed on a surface of the glass plate. The conductor includes a conductive film and a strip electrode for applying a DC voltage to the conductive film. The strip electrode is formed to have a gap between the strip electrode and an outer edge of the conductive film, and is positioned between the outer edge of the conductive film and an outer edge of the glass plate in a plan view of the glass plate. The window glass for the vehicle includes a terminal part for electrically connecting the strip electrode to a transmission line.