Chassis Slot Antenna Layout for Multi-Mode Laptop Connectivity
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Solution Overview
Problem
Existing antenna designs for electronic devices, such as laptops, face connectivity issues in operation modes other than open lid-mode due to radiation shielding, leading to insufficient antenna performance in closed lid-mode and tent-mode.
Innovation Solution
Integrating a slot antenna into the conducting chassis, specifically formed in the lateral part of the chassis, which is made of conducting material and filled with non-conducting material, and using a radiation shielding to reduce electromagnetic interference from internal circuitries, allowing improved radiation and reception of electromagnetic waves across various operation modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional antenna design is used in electronic devices, then the antenna can provide sufficient connectivity in open lid-mode, but the antenna connectivity becomes insufficient in closed lid-mode and tent-mode due to radiation shielding
Solution Approach 1:
The patent transitions the antenna from a planar configuration to a three-dimensional structure by forming it on the lateral surface of the chassis. This dimensional change allows the antenna to radiate effectively in all operation modes (open lid, closed lid, and tent modes) without being blocked by the display assembly, thereby resolving the contradiction between reliability in open lid-mode and adaptability across multiple operation modes.
2Reliability
If a separate antenna device is added to improve antenna performance, then antenna efficiency can be improved, but the device complexity and production costs increase
Solution Approach 1:
The patent merges the antenna structure with the chassis by forming the antenna directly on the lateral surface of the chassis. This integration eliminates the need for separate antenna devices and their associated mounting structures, thereby improving antenna efficiency while reducing device complexity and production costs.
Solution Approach 2:
The chassis lateral surface serves multiple functions: it provides structural support for the device and simultaneously acts as the substrate for the antenna. This multi-functionality reduces the number of separate components needed, simplifying the overall device structure while maintaining high antenna performance.
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 by maintaining consistent connectivity across different operation modes, reducing radiation shielding effects and improving antenna efficiency without the need for separate antenna devices, thus reducing production costs and maintaining a seamless industrial design.
Implementation Method 1
at least one slot antenna is formed in the chassis part made of conducting material
Implementation Method 2
a radiation shielding arranged in the lateral part of the chassis and between the slot antenna and electronic circuitries of the electronic device, wherein the radiation shielding is configured to shield the slot antenna from electromagnetic radiation emitted by the electronic circuitries
Data Source
AI summary
A chassis for an electronic device is provided. The chassis comprises a chassis part made of conducting material. At least one slot antenna is formed in the chassis part made of conducting material.