Antenna Module Dent Wall Chassis Electromagnetic Shielding
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Solution Overview
Problem
The challenge in designing electronic devices, such as laptops, is to secure electromagnetic noise shielding while maintaining or improving radio wave transmitting and receiving performance, which is compromised by the limited space and structural constraints of thin frames and metal components.
Innovation Solution
The design incorporates an antenna module with a base portion made of radio wave transmitting material, featuring a dent wall that provides electromagnetic shielding and mechanical strength, reducing the need for additional components like shield walls and conductive sponges, allowing for efficient radio wave transmission and reception without compromising structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the antenna is provided on the frame of the display chassis, then the antenna can be installed in the electronic device, but electromagnetic noise shielding is insufficient and radio wave performance is compromised
Solution Approach 1:
The display chassis is segmented by introducing a dent wall that divides the internal space into an antenna section and other sections. This segmentation isolates the antenna from electromagnetic noise sources while maintaining the overall chassis structure, thereby improving radio wave performance without compromising structural integrity.
Solution Approach 2:
The antenna section is nested within the display chassis by forming a dent wall that creates an enclosed space. The antenna module is then installed within this nested antenna section, allowing the antenna to be protected and shielded while remaining part of the integrated chassis structure.
2Object-affected harmful factors
If additional shield walls and conductive sponges are added for electromagnetic shielding, then electromagnetic noise shielding is improved, but device complexity and structural constraints are increased
Solution Approach 1:
The electromagnetic shielding function is merged with the structural support function by forming the dent wall as an integral part of the display chassis. This single structure simultaneously provides mechanical support and electromagnetic shielding, eliminating the need for separate shield walls and conductive sponges, thereby reducing device complexity while maintaining shielding effectiveness.
Solution Approach 2:
The dent wall serves multiple functions: it provides structural support for the chassis, creates the antenna section enclosure, and provides electromagnetic noise shielding. This multi-functional design eliminates the need for additional dedicated shielding components, simplifying the overall structure while achieving effective electromagnetic noise protection.
3Length of moving object
If the frame is made thinner to reduce device dimensions, then the overall device size is reduced, but the space for antenna installation and electromagnetic shielding is compromised
Solution Approach 1:
Instead of reducing device dimensions in all directions, the dent wall utilizes the vertical dimension (thickness direction) to create the antenna section. This allows the antenna to be accommodated within the existing frame thickness without increasing overall device dimensions, while still providing sufficient space for antenna installation and electromagnetic shielding.
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 effectively shields electromagnetic noise, enhances radio wave performance, and simplifies the antenna module structure, enabling better communication and reduced dimensions, thus addressing the limitations of thin frames and metal components.
Implementation Method 1
the base portion is made of radio wave transmitting material, thereby enabling radio waves to be transmitted or received via the base portion
Implementation Method 2
The antenna module is provided in an antenna section enclosed by the dent wall on three sides
Data Source
AI summary
An electronic device is disclosed. The electronic device includes an antenna module having an antenna, and a body chassis storing electronic components. The body chassis, which is made of an electromagnetic shielding material such as metal, has a flat plate with a processor arranged thereon and with a cutout portion formed at an end portion thereof, a rear plate connected to the end portion of the flat plate, and a dent wall connected to the cutout portion and to the rear plate. The antenna module is provided in an antenna section whose front, left, and right sides are enclosed by the dent wall.