Bent Mobile Device Appearance for Antenna SAR and Signal Stability
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Solution Overview
Problem
Mobile communication devices face challenges in designing antennas to meet specific absorption ratio (SAR) regulations and reducing frequency shift and noise due to limited internal space and user-hand interference, which affects communication quality.
Innovation Solution
The design incorporates a mobile communication device with bent appearances and an antenna placement strategy, where the antenna is positioned in a non-display area, and an antenna carrier with a body, extending, ground, and feeding parts, along with substrates, to form a chamber, ensuring the antenna is not obstructed by the user's hand and maintaining optimal signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the antenna is disposed in the display area, then the internal space is efficiently utilized, but the user's hand will obstruct the antenna and cause frequency shift and noise
Solution Approach 1:
The patent applies dimensionality change by bending the appearances at specific angles to create a three-dimensional chamber structure that positions the antenna in a spatial location away from the display area, thereby avoiding hand obstruction while efficiently utilizing internal space through vertical and angular arrangement
2Device complexity
If the antenna is positioned close to the user's hand, then the device structure is simplified, but the specific absorption ratio (SAR) exceeds regulatory limits
Solution Approach 1:
The patent employs curvature by bending the appearances at predetermined angles to form a chamber that positions the antenna away from the user's hand, thereby reducing SAR exposure while maintaining a compact and integrated device structure without adding excessive complexity
3Reliability
If bent appearances are adopted to position the antenna away from the display area, then frequency shift and noise are reduced, but the device structure becomes more complex
Solution Approach 1:
The patent merges the appearance structure with the antenna mounting structure by integrating the bent appearances and chamber formation into a unified design, thereby achieving the antenna positioning and hand obstruction prevention while minimizing additional structural complexity through functional integration
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 reduces frequency shift and noise, improving communication quality while meeting SAR regulations by maintaining a safe distance between the antenna and the user's hand, thus enhancing the overall performance of the device.
Implementation Method 1
The antenna transmits a signal processed by the mobile communication device
Implementation Method 2
the dielectric value ∈r of the surrounding environment in which the antenna transmits and receives signals may be changed, and accordingly frequency shift and noises may be produced
Data Source
AI summary
A mobile communication device including a first appearance and an antenna is provided. An upper surface of the first appearance is bent a first angle from a border between a display area and a non-display area toward a display direction, and a lower surface of the first appearance is bent a second angle from a bending point toward the display direction, wherein the bending point of the lower surface is corresponding to the display area of the upper surface. The antenna is disposed in the mobile communication device and corresponding to the non-display area of the first appearance. The antenna transmits and receives signals processed by the mobile communication device.