Foldable Antenna Grounding Patterns for ESD Without Radiation Loss
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Solution Overview
Problem
In foldable electronic devices, static electricity flowing from outside can induce interference with the antenna radiation area, leading to degraded antenna performance due to conductive members hiding part of the antenna radiation area.
Innovation Solution
The electronic device incorporates a conductive member with discontinuous patterns periodically repeated to induce static electricity to ground, while minimizing interference with the antenna radiation area by designing the patterns to avoid overlapping with the antenna radiation area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a continuous conductive member is used to ground static electricity, then static electricity dissipation is improved, but antenna radiation performance deteriorates due to hiding the radiation area
Solution Approach 1:
The continuous conductive member is divided into multiple discrete conductive patterns arranged in an array. These segmented patterns provide sufficient grounding paths for static electricity while creating gaps that prevent complete blocking of the antenna radiation area, thus resolving the contradiction between ESD protection and antenna performance
Solution Approach 2:
The conductive patterns are strategically positioned and sized to provide localized grounding functionality only where needed for static electricity dissipation. The patterns are designed with specific geometries and spacing to ensure they ground ESD effectively while maintaining adequate radiation area for the antenna, applying different properties to different regions of the flexible display
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 solution effectively improves the antenna performance by ensuring that static electricity is properly grounded without compromising the antenna's radiation capabilities, thus enhancing the overall performance of the foldable electronic device.
Implementation Method 1
a conductive member is disposed based on at least one pattern between the protective frame and the edges of the flexible display
Data Source
AI summary
An electronic device is provided. The electronic device includes a first housing, a second housing foldably connected to the first housing through a hinge device, a flexible display disposed to be supported by the second housing through the hinge device from the first housing, and a protective frame disposed on the second housing with edges of the flexible display interposed, wherein a conductive member is disposed based on at least one pattern between the protective frame and the edges of the flexible display.