Movable Antenna Support for Electronic Device Interference Reduction
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Solution Overview
Problem
The performance of internal antennas in electronic devices is compromised due to shielding effects and limited space, leading to interference and reduced communication quality as devices become thinner and lighter.
Innovation Solution
An electronic device design featuring a movable support with a first antenna that can be ejected from an accommodating groove, allowing the antenna to protrude and reduce interference from other components, while a guiding component manages the transmission wire's movement to maintain effective signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the antenna is made thinner and lighter to reduce device weight, then the device weight is reduced, but the antenna performance deteriorates due to limited space and increased interference
Solution Approach 1:
The patent employs a movable support structure that allows the antenna to dynamically change its position between an extended state (protruding from the case) and a retracted state (within the case). This dynamic positioning enables the antenna to optimize its performance by extending to a location with better signal propagation characteristics while minimizing interference from internal components, thereby maintaining reliable antenna performance in a thin, lightweight device.
2Volume of moving object
If the antenna is positioned closer to internal components to save space, then the device thickness is reduced, but the antenna performance deteriorates due to shielding effects and interference
Solution Approach 1:
The movable support structure enables the antenna to extend beyond the case surface when needed, effectively increasing the antenna's distance from interfering internal components without increasing the device's overall thickness. The antenna can transition between extended and retracted positions, allowing it to achieve optimal radiation characteristics when extended while maintaining a compact profile when retracted.
Solution Approach 2:
Instead of positioning the antenna solely within the horizontal plane of the device, the invention utilizes the vertical dimension by allowing the antenna to protrude outward from the case surface. This dimensional transition enables the antenna to access a three-dimensional space with better electromagnetic characteristics, reducing shielding effects from planar internal components while maintaining device thinness.
3Reliability
If the antenna is extended outward to improve radiation efficiency, then the antenna performance is improved, but the device complexity increases due to the movable support structure
Solution Approach 1:
The movable support structure provides a mechanically simple yet effective means of positioning the antenna. The support allows linear movement between extended and retracted states, enabling the antenna to achieve optimal performance positioning without requiring complex actuators, motors, or control systems. The mechanical design focuses on simplicity, using basic sliding or telescoping mechanisms that can be easily integrated into the device housing.
Data Source
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AI summary
The present disclosure provides an electronic device. The electronic device (100) includes: a case (20) defining an accommodating groove (50); a movable support (30) slidably connected to the case (20), and capable of moving out of or retracting into the accommodating groove (50); and a first antenna (82) installed on the movable support (30). Since the first antenna (82) may be ejected out of the accommodating groove (50) along with the movable support (30), influence of other components disposed inside the electronic device (100) on the first antenna (82) may be reduced. Thus, the implementation of the present disclosure may improve antenna performance of the electronic device.