Adjustable Antenna Module for Metal Chassis Interference
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Solution Overview
Problem
Wireless communication devices, such as laptops, suffer from reduced antenna performance in modes like closed lid or tablet mode due to chassis metal interference, leading to degraded wireless communication links, especially in areas with low signal strength.
Innovation Solution
An antenna module is designed with a partially ejectable mechanical case that can be moved from a default position within the chassis to an elevated position, enhancing its distance from metal structures and improving reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the antenna is fixed inside the chassis, then the device structure is simple and compact, but the antenna performance deteriorates in closed lid or tablet mode due to metal interference
Solution Approach 1:
The antenna mounting structure transitions from a static fixed position to a dynamic adjustable position. The antenna can be moved between a first position (closer to the chassis surface) and a second position (farther from the chassis surface), allowing the system to adapt its antenna performance based on operational mode requirements.
Solution Approach 2:
The mounting structure is divided into separable components that allow the antenna to be independently positioned. The antenna module can be detached from its default fixed mounting location and repositioned to an elevated location, enabling independent optimization of antenna performance without affecting the overall device structure.
2Length of moving object
If the antenna is positioned closer to the chassis surface, then the device thickness is reduced, but the wireless communication range is limited
Solution Approach 1:
The antenna positioning system allows dynamic adjustment between two distinct positions. In the first position, the antenna is closer to the chassis surface, maintaining a compact device profile. In the second position, the antenna is elevated farther from the chassis surface, extending the wireless communication range. This dynamic repositioning resolves the contradiction between compactness and communication range.
3Adaptability or versatility
If the antenna is fixed in a single position, then the device structure is simple, but the wireless performance cannot be maintained across different usage modes
Solution Approach 1:
The mounting structure incorporates dynamic repositioning capability that allows the antenna to be adjusted between a first position optimized for certain usage modes and a second position optimized for other usage modes. This dynamic adaptability enables consistent wireless performance across laptop mode, tablet mode, and closed lid mode without requiring a completely complex multi-antenna system.
Data Source
AI summary
A communication device including a chassis; and a wireless communication interface having an antenna and a mounting structure, the mounting structure mounting the antenna to the chassis, wherein the mounting structure is configured to arrange the antenna in a first position and in at least a second position, wherein in the first position the antenna is arranged in a first distance to a surface of the chassis, and in the second position the antenna is arranged in a second distance to the surface of the chassis, wherein the second distance is larger than the first distance, wherein the antenna is operational in the same frequency range in each of the first position and the second position.