Vehicle Lamp Radar Antenna Integration for Flexible Mounting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current radar devices for vehicles have complex structures and limited design freedom and spatial utilization due to the need for separate antenna modules and external mounting, which restricts mounting positions and compromises sensing accuracy and vehicle design.
Innovation Solution
A radar device with an antenna integrated into the inner surface of a vehicle lamp, using a transparent electrode antenna pattern and a signal processing module positioned below the light source within the lamp, to minimize space requirements and prevent interference from metallic components while maintaining electromagnetic wave performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the radar uses a separate antenna module mounted externally, then the antenna can be positioned for optimal electromagnetic wave transmission, but the device structure becomes complex and design freedom is reduced
Solution Approach 1:
The patent merges the antenna function with the lamp housing by forming a transparent electrode antenna pattern directly on the inner surface of the lamp's outer lens. This integration eliminates the need for a separate antenna module while maintaining electromagnetic wave transmission capability, thereby reducing device complexity without sacrificing reliability
Solution Approach 2:
The lamp housing is given dual functionality: it serves both as a lighting component and as an antenna for radar operations. The transparent electrode pattern on the outer lens enables the lamp housing to perform both illumination and electromagnetic wave transmission/reception functions, reducing the overall number of components needed
2Measurement precision
If the radar is mounted externally on the bumper or front grill, then the antenna has direct exposure for accurate sensing, but the mounting position is restricted and design characteristics deteriorate
Solution Approach 1:
The radar antenna is merged with the lamp housing structure, allowing the radar system to be mounted in locations where lamps are already installed. This integration provides flexibility in mounting positions across different vehicle designs while maintaining sensing accuracy through the transparent electrode pattern that allows electromagnetic wave passage
3Measurement precision
If the radar is mounted externally, then sensing accuracy is maintained, but the radar is easily damaged in rear-end collisions
Solution Approach 1:
The antenna is nested within the lamp housing structure rather than being mounted externally. The lamp housing serves as a protective enclosure for the antenna, shielding it from physical damage during collisions while the transparent electrode pattern maintains electromagnetic wave transmission capability for accurate sensing
4Device complexity
If a metallic component or paint layer is provided on the front portion of the radar, then the structure is simplified, but sensing accuracy deteriorates
Solution Approach 1:
The antenna uses a transparent electrode pattern instead of traditional metallic components or paint layers. The transparency of the electrode material allows electromagnetic waves to pass through without interference, maintaining sensing accuracy while providing a simplified integrated structure that combines the antenna with the lamp housing
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 configuration simplifies the radar device structure, enhances design freedom and spatial utilization, and improves light distribution and vehicle design characteristics by using a transparent electrode antenna pattern and strategically placing the signal processing module to reduce overheating and improve reliability.
Implementation Method 1
an antenna provided on an inner surface of a lamp for a vehicle and configured to transmit and receive electromagnetic waves
Data Source
AI summary
A radar device for a vehicle, the radar device including: an antenna provided on an inner surface of a lamp for a vehicle and configured to transmit and receive electromagnetic waves; and a signal processing module provided in the lamp and configured to process a signal received by the antenna, such that it is possible to obtain an advantageous effect of simplifying a structure and improving a degree of design freedom and spatial utilization.