Antenna Radiator Ground Area via Angled FPCB and Mid-Plate
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Solution Overview
Problem
The existing antenna technologies in electronic devices face challenges in maintaining a stable and sufficient ground area, leading to potential damage or distortion during assembly, especially when the metal radiator is positioned adjacent to the display panel at right angles, which affects the antenna's performance.
Innovation Solution
The proposed solution involves a design where a metal area adjacent to the display panel is used to create a wider ground area, incorporating a flexible printed circuit board with angled portions and a mid-plate structure that supports the printed circuit board, ensuring the antenna radiator remains undamaged and functional during assembly and operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the antenna radiator is arranged at right angles to the display surface adjacent to the display panel, then the ground area is expanded, but the antenna radiator may be damaged or distorted during assembly
Solution Approach 1:
The patent applies preliminary action by pre-assembling the antenna radiator with the display panel in a protected configuration before final device assembly. The radiator is positioned and secured in advance, preventing damage during subsequent assembly steps. This is evident in the detailed assembly process where the radiator is integrated with the display panel structure prior to housing assembly.
Solution Approach 2:
The patent uses an intermediary structure (the display panel itself and its associated housing components) to protect the antenna radiator during assembly. The display panel acts as a mediator that provides structural support and protection to the radiator, preventing direct exposure to damaging forces during the assembly process.
2Device complexity
If the substrate mounted on the electronic device is limited by battery or other parts, then the device structure is compact, but the ground area becomes insufficient
Solution Approach 1:
The patent resolves the ground area limitation by transitioning from a two-dimensional substrate plane to a three-dimensional structure. The antenna radiator extends vertically from the display panel, utilizing the Z-dimension (thickness direction) to create additional ground area without increasing the device's footprint. This dimensional transition allows sufficient ground area while maintaining compact device structure.
Solution Approach 2:
The patent applies multi-functionality by having the display panel structure serve dual purposes: as the display interface and as the mounting structure for the antenna radiator. The housing components simultaneously provide mechanical protection and electrical grounding functions. This eliminates the need for separate dedicated ground areas, maintaining compactness while providing sufficient ground area.
3Area of stationary object
If the metal area adjacent to the display panel is used as antenna radiator, then the ground area is widened, but the radiator may be damaged during assembly process
Solution Approach 1:
The patent applies preliminary action by pre-positioning and securing the antenna radiator to the display panel before final device assembly. The radiator is integrated into the display panel structure in advance, ensuring proper positioning and protection during subsequent manufacturing steps. This preliminary integration simplifies the overall assembly process while maintaining ease of manufacture.
Solution Approach 2:
The patent merges the antenna radiator with the display panel structure, creating an integrated assembly. This combination eliminates separate handling steps for the radiator during assembly, reducing complexity. The merged structure is manufactured as a unified component, simplifying the assembly process while providing the required ground area.
Data Source
AI summary
An electronic device is provided. The electronic device includes a housing including a first surface, a second surface, and a side plate surrounding part of a space between the first surface and the second surface, a display disposed in the housing, a first plate attached to or integrated into the display, a second plate facing in the third direction and positioned adjacent to the side plate, a flexible printed circuit board (FPCB) including a first planar portion coupled to the first plate, and a second planar portion coupled to the second plate and angled from the first planar portion, a printed circuit board (PCB) interposed between the display and the second surface, and a mid-plate disposed in the housing, wherein the second planar portion of the FPCB is interposed between a side surface of the mid-plate and the second plate separated from each other by a gap.