Configurable Antenna Element Underbody Integration
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Solution Overview
Problem
Traditional motor vehicle antennas are prone to breakage, vandalism, corrosion, and aesthetic issues, and their integration into non-conductive vehicle panels is costly and compromises performance due to complexity and increased drag coefficient.
Innovation Solution
A configurable antenna element comprising a conductor encased in a foam substrate with a pressure-sensitive adhesive, allowing for easy installation within non-conductive vehicle panels, reducing assembly costs and improving reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional antennas are attached to the vehicle body, then connectivity function is provided, but they are prone to breakage, vandalism, and corrosion
Solution Approach 1:
The antenna is extracted from traditional exposed positions (roof, fender, window) and relocated to the underbody panel, removing it from environments susceptible to vandalism and physical damage while maintaining its radio frequency transmission function
Solution Approach 2:
The antenna element is nested within the underbody panel structure, specifically integrated into the non-conductive panel between the exhaust system and vehicle body, providing protection while maintaining functionality
2Ease of manufacture
If hidden antenna elements are integrated into non-conductive panels, then aesthetics are improved and protection is enhanced, but assembly cost increases due to complex dies and cutouts
Solution Approach 1:
The antenna system is segmented into a modular element that can be independently manufactured and then attached to the underbody panel, eliminating the need for complex integrated dies and cutouts in the panel itself
Solution Approach 2:
The antenna element is pre-assembled with the non-conductive panel in a separate manufacturing process, allowing for simpler panel fabrication and reducing assembly complexity at the vehicle manufacturing stage
3Productivity
If multiple antennas are installed on the vehicle body, then connectivity coverage is improved, but drag coefficient increases reducing fuel efficiency
Solution Approach 1:
The antenna location is moved from the vertical exterior surfaces (roof, fender) to the horizontal underbody plane, utilizing an unused spatial dimension that does not interfere with the vehicle's aerodynamic profile
4Ease of manufacture
If antennas are perforated into vehicle panels, then installation is simplified, but corrosion resistance is compromised
Solution Approach 1:
The antenna element and non-conductive panel are combined into a single integrated component, eliminating the need for separate mounting operations that would require perforations and associated fastening hardware
Solution Approach 2:
A non-conductive adhesive layer serves as an intermediary between the antenna element and the underbody panel, providing secure attachment without mechanical penetration that would compromise corrosion resistance
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
The solution enhances antenna performance and reliability while minimizing aesthetic impact and assembly costs by integrating the antenna within the vehicle's underbody, offering flexibility in manufacturing and installation.
Implementation Method 1
a pressure sensitive adhesive applied to a surface of the foam substrate for application of the configurable antenna to a surface
Data Source
AI summary
A configurable antenna element comprises a conductor encased in a foam substrate with a pressure sensitive adhesive applied to a surface of the foam substrate for application of the configurable antenna to a surface.