Vehicle Antenna Module Metal Sheet Shielding
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Solution Overview
Problem
Existing antenna modules for motor vehicles experience electromagnetic coupling between primary and secondary antennas, leading to interference in signal reception and transmission.
Innovation Solution
An antenna module design featuring a metal sheet for electrical shielding, placed between the primary antenna and electronic components, to isolate them and prevent electromagnetic coupling, along with a protective cover and fixing devices for secure mounting and grounding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a metal sheet is added for electromagnetic shielding, then electromagnetic interference is reduced, but device complexity increases
Solution Approach 1:
The patent combines the metal sheet (for electromagnetic shielding) with the antenna housing structure, integrating multiple functions into a unified assembly. The metal sheet is positioned between the primary antenna and electronic components within the housing, creating an integrated shielded structure that reduces electromagnetic interference without requiring separate mounting operations or additional complex subsystems.
2Reliability
If multiple fastening devices are used to secure the antenna module, then mounting reliability is improved, but ease of manufacture deteriorates
Solution Approach 1:
The fastening devices in the patent serve multiple functions simultaneously: they mechanically secure the antenna housing to the vehicle body, provides electromagnetic grounding through metal contact, and position the assembly correctly during installation. This multi-functionality reduces the need for separate dedicated components for each function, simplifying the manufacturing process while maintaining reliable mounting.
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 effectively reduces electromagnetic interference, enhances signal quality, and simplifies the mounting process while providing effective heat dissipation and grounding for the antenna system.
Implementation Method 1
a metal sheet (17) adapted to be located inside the motor vehicle (2) and placed between said at least one primary antenna (15) and said at least one electronic component (16), in order to have electrical shielding with a single element
Implementation Method 2
The metal sheet (17) is adapted to dissipate the heat emitted by the electronic component (16)
Data Source
Figure 1
Figure 2
Figure 3~5a
AI summary
The present invention relates to an antenna module (1) for a motor vehicle comprising a bodywork, the antenna module (1) comprising: - an antenna unit (11) suitable for being disposed in part inside the motor vehicle under said bodywork and comprising: - at least one primary antenna (15); - at least one electronic component (16); - an upper cover (13) on which said at least one primary antenna (15) is disposed - a lower cover (14) suitable for receiving said at least one electronic component (16); - a metal sheet (17) located inside the motor vehicle and disposed between said at least one primary antenna (15) and said at least one electronic component (16).